Lezione 6 Communications Blockset

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Lezione 6 Communications Blockset"

Transcription

1 Corso di Tecniche CAD per le Telecomunicazioni A.A Lezione 6 Communications Blockset Ing. Marco GALEAZZI 1

2 What Is Communications Blockset? Communications Blockset extends Simulink with a comprehensive library of blocks to design and simulate the physical layer of communication systems and components. The key features of the blockset are Blocks for designing and simulating the physical layer of communications systems, including modulation, source and channel encoding, channels, and equalization The ability to tune models and visualize the results Hierarchical, block-based models for visually conveying complex designs Integration with Communications Toolbox for postsimulation analysis 2

3 QPSK vs. MSK Demo The QPSK vs. MSK demo, my_qpskvsmsk, enables you to visually compare quadrature phase shift keying (QPSK) and minimum shift keying (MSK) modulation schemes. 3

4 Structure of the Demo (1) 4

5 Structure of the Demo (2) This demo uses various Communications and Signal Processing Blockset blocks to model QPSK and MSK modulation. The demo includes these blocks: Sources of uniformly distributed random integers between 0 and M-1, where M is the constellation size of the modulation scheme. Two sources are required, because QPSK is a quaternary modulation method, while MSK is a binary modulation method. QPSK Modulator Baseband MSK Modulator Baseband AWGN Channel Discrete-Time Eye Diagram Scope Discrete-Time Signal Trajectory Scope 5

6 Results and Displays The demo includes these visual aids to illustrate the difference between the two modulation schemes: Eye diagram blocks that show the eye diagrams of QPSK and MSK signals plus noise. In QPSK, the values of both the in-phase and quadrature components of the signal are permitted to change at any symbol interval. However, for MSK, the symbol interval is half that for QPSK but the inphase and quadrature components change values in alternate symbol epochs. Therefore, the ideal sampling time for QPSK is 0.5, 1.5, 2.5,..., while the ideal sampling period for MSK is 0.5, 1.5, 2.5,... for the in-phase signal and 1, 2, 3,... for the quadrature signal. 6

7 Cosa contiene Comms Blockset Il Communication Blockset contiene (ad oggi) 13 sottolibrerie. Si può accedere alla finestra mostrata a lato digitando il comando commlib nella Command Window di MATLAB. 7

8 Comm Sources Blocks in the Comm Sources library can Generate random data (bit or integer) Uniform, Bernoulli, Poisson Generate random noise to simulate channels Uniform, Gaussian, Rayleigh, Rician Generate sequences that can be used for spreading or synchronization in a communication system PN sequences, Gold sequences, Hadamard codes... 8

9 Comm Sinks Comm Sinks library contains Error Statistics Error Rate Calculation block. It calculates these error statistics: Error rate Number of error events Total number of input events Scopes Discrete-Time Eye Diagram Scope Discrete-Time Scatter Plot Scope Discrete-Time Signal Trajectory Scope 9

10 Source Coding Analog-to-digital conversion and data compression are two categories of source coding. Source encoding converts a source signal into a digital signal using a quantization method. Source decoding recovers the original information from the source-coded signal. Source Coding library contains Encoders and Decoders Scalar quantization and differential coding Companders A-Law and Mu-Law Compressor/Expander 10

11 Error Detection and Correction Questo blocks library si divide in: Block Coding Binary linear and cyclic, BCH, Hamming, Reed- Solomon Convolutional Coding Convolutional Encoder, Viterbi Decoder Cyclic Redundancy Check (CRC) Coding General CRC Generator and Syndrome Detector CRC-N Generator and Syndrome Detector 11

12 Interleaving An interleaver permutes symbols according to a mapping. Interleaving can be useful for reducing errors caused by burst errors in a communication system. This blockset provides interleavers in two broad categories: Block interleavers. This category includes matrix, random, algebraic, and helical scan interleavers as special cases. Convolutional interleavers. This category includes a helical interleaver as a special case, as well as a general multiplexed interleaver. 12

13 Modulation Questo blocks library si divide in: Analog Modulation Amplitude modulation (DSB, DSB-SC, SSB) Digital Modulation Pulse Amplitude Modulation (PAM) Quadrature Amplitude Modulation (QAM) Phase Shift Keying (PSK) Differential Phase Shift Keying (DPSK) Frequency Shift Keying (FSK) Minimum Shift Keying (MSK) Gaussian Minimum Shift Keying (GMSK) Continuous Phase Frequency Shift Keying (CPFSK) 13

14 Comm Filters The Comm Filters library includes several blocks that you can use for filtering (Rx) or pulse shaping (Tx). Gaussian FIR filter Raised Cosine Transmit and Receive filters Integrate and Dump These operations are necessary to control bandwidth, intersymbol interference, and signal-to-noise ratio. 14

15 Channels (1) Communication channels introduce noise, fading, interference, and other distortions into the signals that they transmit. Simulating a communication system involves modeling a channel based on mathematical descriptions of the channel. In a simulation, the channel model usually fits directly between the transmitter and receiver, as shown below. 15

16 Channels (2) This blockset provides several channel models for binary, real, and complex signals. Binary Symmetric Channel: Add binary errors to the input signal. AWGN Channel: Add white Gaussian noise to the input signal. The input and output signals can be real or complex. Multipath Rayleigh Fading Channel: For complex baseband signals, multiplies the input signal with samples of a Rayleigh distributed complex random process. Rician Fading Channel: For complex baseband signals, multiplies the input signal with samples of a Rician distributed complex random process. The spectrum of the both Rayleigh and Rician process is given by the Jakes Power Spectral Density (PSD). 16

17 RF Impairments The RF Impairments library contains blocks that model impairments to a baseband signal caused by the radio frequency (RF) components in the receiver. Nonlinearity and I/Q imbalances Phase/frequency offsets and phase noise Receiver thermal noise and free space path loss 17

18 Synchronization In order to interpret information correctly, a communication receiver must be synchronized with the corresponding transmitter. The Synchronization library contains: Components Voltage Controlled Oscillator (VCO) Phase-Locked Loop (PLL) Timing Phase Recovery Carrier Phase Recovery (CPM, M-PSK) 18

19 Equalizers An equalizer attempts to mitigate ISI and thus improve the receiver s performance. This blockset supports these distinct classes of equalizers, each with a different overall structure: Linear equalizers, a class that includes symbol-spaced equalizers and fractionally spaced equalizers Decision-feedback equalizers MLSE (maximum-likelihood sequence estimation) equalizer that uses the Viterbi algorithm 19

20 Sequence Operations This library contains: Repeat/Derepeat input samples N times. Scrambler/Descrambler Puncture/Insert Zero Interlacer/Deinterlacer 20

21 Utility Blocks This library contains: Integer Bit Converters Data Mapper (Binary Gray, User Defined) db Conversion Bipolar Unipolar Converters {-M+1, -M+3, -M+5,..., M-1} {0... M-1} Align Signals Find Delay Complex Phase Difference Complex Phase Shift 21

22 FINE 22

Digital Communications

Digital Communications Digital Communications Fourth Edition JOHN G. PROAKIS Department of Electrical and Computer Engineering Northeastern University Boston Burr Ridge, IL Dubuque, IA Madison, Wl New York San Francisco St.

More information

MODULATION Systems (part 1)

MODULATION Systems (part 1) Technologies and Services on Digital Broadcasting (8) MODULATION Systems (part ) "Technologies and Services of Digital Broadcasting" (in Japanese, ISBN4-339-62-2) is published by CORONA publishing co.,

More information

Principles of Digital Modulation. Dr Mike Fitton, Telecommunications Research Lab Toshiba Research Europe Limited

Principles of Digital Modulation. Dr Mike Fitton, Telecommunications Research Lab Toshiba Research Europe Limited Principles of Digital Modulation Dr Mike Fitton, mike.fitton@toshiba-trel.com Telecommunications Research Lab Toshiba Research Europe Limited 1 Principles of Digital Modulation: Outline of Lectures Introduction

More information

568 Subject Index. exponential distribution, 106, 108, 539 extension field, 545, 551 eye diagram, 193

568 Subject Index. exponential distribution, 106, 108, 539 extension field, 545, 551 eye diagram, 193 SUBJECT INDEX additive system, 182 additive white Gaussian noise, 99, 103 aliasing, 52, 54 amplifier AM/AM characteristic, 332, 342 AM/PM characteristic, 332, 342 nonlinear, 344 two-box model, 344 amplifiers,

More information

Digital Modulation. David Tipper. Department of Information Science and Telecommunications University of Pittsburgh. Typical Communication System

Digital Modulation. David Tipper. Department of Information Science and Telecommunications University of Pittsburgh. Typical Communication System Digital Modulation David Tipper Associate Professor Department of Information Science and Telecommunications University of Pittsburgh http://www.tele.pitt.edu/tipper.html Typical Communication System Source

More information

Department of Electrical and Computer Engineering Ben-Gurion University of the Negev. LAB 1 - Introduction to USRP

Department of Electrical and Computer Engineering Ben-Gurion University of the Negev. LAB 1 - Introduction to USRP Department of Electrical and Computer Engineering Ben-Gurion University of the Negev LAB 1 - Introduction to USRP - 1-1 Introduction In this lab you will use software reconfigurable RF hardware from National

More information

Physical Layer Part 2. Data Encoding Techniques. Networks: Data Encoding 1

Physical Layer Part 2. Data Encoding Techniques. Networks: Data Encoding 1 Physical Layer Part 2 Data Encoding Techniques Networks: Data Encoding 1 Analog and Digital Transmissions Figure 2-23.The use of both analog and digital transmissions for a computer to computer call. Conversion

More information

Implementation of Digital Signal Processing: Some Background on GFSK Modulation

Implementation of Digital Signal Processing: Some Background on GFSK Modulation Implementation of Digital Signal Processing: Some Background on GFSK Modulation Sabih H. Gerez University of Twente, Department of Electrical Engineering s.h.gerez@utwente.nl Version 4 (February 7, 2013)

More information

A Primer on Digital Modulation

A Primer on Digital Modulation A Primer on Digital Modulation By Bertrand Zauhar, VE2ZAZ http://ve2zaz.net August 2013 In this Presentation Modulation Fundamentals Real Life Communications Design Constraints Digital Modulation (DM)

More information

Signal Encoding Techniques

Signal Encoding Techniques Signal Encoding Techniques Guevara Noubir noubir@ccs.neu.edu 1 Reasons for Choosing Encoding Techniques Digital data, digital signal Equipment less complex and expensive than digital-to-analog modulation

More information

Appendix D Digital Modulation and GMSK

Appendix D Digital Modulation and GMSK D1 Appendix D Digital Modulation and GMSK A brief introduction to digital modulation schemes is given, showing the logical development of GMSK from simpler schemes. GMSK is of interest since it is used

More information

Errata Introduction to Wireless Systems P. Mohana Shankar. Page numbers are shown in blue Corrections are shown in red.

Errata Introduction to Wireless Systems P. Mohana Shankar. Page numbers are shown in blue Corrections are shown in red. Errata Introduction to Wireless Systems P. Mohana Shankar Page numbers are shown in blue Corrections are shown in red February 25 Page 11 below Figure 2.4 The power detected by a typical receiver is shown

More information

PHASE ESTIMATION ALGORITHM FOR FREQUENCY HOPPED BINARY PSK AND DPSK WAVEFORMS WITH SMALL NUMBER OF REFERENCE SYMBOLS

PHASE ESTIMATION ALGORITHM FOR FREQUENCY HOPPED BINARY PSK AND DPSK WAVEFORMS WITH SMALL NUMBER OF REFERENCE SYMBOLS PHASE ESTIMATION ALGORITHM FOR FREQUENCY HOPPED BINARY PSK AND DPSK WAVEFORMS WITH SMALL NUM OF REFERENCE SYMBOLS Benjamin R. Wiederholt The MITRE Corporation Bedford, MA and Mario A. Blanco The MITRE

More information

Non-Data Aided Carrier Offset Compensation for SDR Implementation

Non-Data Aided Carrier Offset Compensation for SDR Implementation Non-Data Aided Carrier Offset Compensation for SDR Implementation Anders Riis Jensen 1, Niels Terp Kjeldgaard Jørgensen 1 Kim Laugesen 1, Yannick Le Moullec 1,2 1 Department of Electronic Systems, 2 Center

More information

Modulation methods. S-72. 333 Physical layer methods in wireless communication systems. Sylvain Ranvier / Radio Laboratory / TKK 16 November 2004

Modulation methods. S-72. 333 Physical layer methods in wireless communication systems. Sylvain Ranvier / Radio Laboratory / TKK 16 November 2004 Modulation methods S-72. 333 Physical layer methods in wireless communication systems Sylvain Ranvier / Radio Laboratory / TKK 16 November 2004 sylvain.ranvier@hut.fi SMARAD / Radio Laboratory 1 Line out

More information

Adjacent Channel Interference. Adaptive Modulation and Coding. Advanced Mobile Phone System. Automatic Repeat Request. Additive White Gaussian Noise

Adjacent Channel Interference. Adaptive Modulation and Coding. Advanced Mobile Phone System. Automatic Repeat Request. Additive White Gaussian Noise Apéndice A. Lista de s ACI AM AMC AMPS ARQ AWGN BB BER BPSK BPF BW CCK CD CDMA CDPD COFDM CRL CSI CWTS Adjacent Channel Interference Amplitude Modulation Adaptive Modulation and Coding Advanced Mobile

More information

QAM Demodulation. Performance Conclusion. o o o o o. (Nyquist shaping, Clock & Carrier Recovery, AGC, Adaptive Equaliser) o o. Wireless Communications

QAM Demodulation. Performance Conclusion. o o o o o. (Nyquist shaping, Clock & Carrier Recovery, AGC, Adaptive Equaliser) o o. Wireless Communications 0 QAM Demodulation o o o o o Application area What is QAM? What are QAM Demodulation Functions? General block diagram of QAM demodulator Explanation of the main function (Nyquist shaping, Clock & Carrier

More information

Outlines. LECTURE 3: Wireless Transmission Technologies. Wireless Transmission on Unguided Media

Outlines. LECTURE 3: Wireless Transmission Technologies. Wireless Transmission on Unguided Media LECTURE 3: Wireless Transmission Technologies CIS 472 Wireless Communications and Networks Winter 2016 Instructor: Dr. Song Xing Outlines Wireless Data Transmission Modulation Spread Spectrum Department

More information

QAM and QPSK: Aim: Introduction:

QAM and QPSK: Aim: Introduction: QAM and QPSK: Aim: Review of Quadrature Amplitude Modulator (QAM) in digital communication system, generation of Quadrature Phase Shift Keyed (QPSK or 4-PSK) signal and demodulation. Introduction: The

More information

Vector Signal Analyzer FSQ-K70

Vector Signal Analyzer FSQ-K70 Product brochure Version 02.00 Vector Signal Analyzer FSQ-K70 July 2004 Universal demodulation, analysis and documentation of digital radio signals For all major mobile radio communication standards: GSM

More information

CDMA TECHNOLOGY. Brief Working of CDMA

CDMA TECHNOLOGY. Brief Working of CDMA CDMA TECHNOLOGY History of CDMA The Cellular Challenge The world's first cellular networks were introduced in the early 1980s, using analog radio transmission technologies such as AMPS (Advanced Mobile

More information

Contents. A Error probability for PAM Signals in AWGN 17. B Error probability for PSK Signals in AWGN 18

Contents. A Error probability for PAM Signals in AWGN 17. B Error probability for PSK Signals in AWGN 18 Contents 5 Signal Constellations 3 5.1 Pulse-amplitude Modulation (PAM).................. 3 5.1.1 Performance of PAM in Additive White Gaussian Noise... 4 5.2 Phase-shift Keying............................

More information

Course Curriculum for Master Degree in Electrical Engineering/Wireless Communications

Course Curriculum for Master Degree in Electrical Engineering/Wireless Communications Course Curriculum for Master Degree in Electrical Engineering/Wireless Communications The Master Degree in Electrical Engineering/Wireless Communications, is awarded by the Faculty of Graduate Studies

More information

ISM Band Device Test

ISM Band Device Test ISM Band Device Test Agenda ISM Band Background Modulation and Parametric Testing of ISM Band ISM Device Test Demonstration ZigBee ZigBee Demonstration Industrial, Scientific and Medical Radio Band Originally

More information

ISI Mitigation in Image Data for Wireless Wideband Communications Receivers using Adjustment of Estimated Flat Fading Errors

ISI Mitigation in Image Data for Wireless Wideband Communications Receivers using Adjustment of Estimated Flat Fading Errors International Journal of Engineering and Management Research, Volume-3, Issue-3, June 2013 ISSN No.: 2250-0758 Pages: 24-29 www.ijemr.net ISI Mitigation in Image Data for Wireless Wideband Communications

More information

A Performance Study of Wireless Broadband Access (WiMAX)

A Performance Study of Wireless Broadband Access (WiMAX) A Performance Study of Wireless Broadband Access (WiMAX) Maan A. S. Al-Adwany Department of Computer & Information Engineering, College of Electronics Engineering University of Mosul Mosul, Iraq maanaladwany@yahoo.com

More information

Digital Baseband Modulation

Digital Baseband Modulation Digital Baseband Modulation Later Outline Baseband & Bandpass Waveforms Baseband & Bandpass Waveforms, Modulation A Communication System Dig. Baseband Modulators (Line Coders) Sequence of bits are modulated

More information

International Journal of Computer Sciences and Engineering. Research Paper Volume-4, Issue-4 E-ISSN: 2347-2693

International Journal of Computer Sciences and Engineering. Research Paper Volume-4, Issue-4 E-ISSN: 2347-2693 International Journal of Computer Sciences and Engineering Open Access Research Paper Volume-4, Issue-4 E-ISSN: 2347-2693 PAPR Reduction Method for the Localized and Distributed DFTS-OFDM System Using

More information

Implementing Digital Wireless Systems. And an FCC update

Implementing Digital Wireless Systems. And an FCC update Implementing Digital Wireless Systems And an FCC update Spectrum Repacking Here We Go Again: The FCC is reallocating 600 MHz Frequencies for Wireless Mics 30-45 MHz (8-m HF) 174-250 MHz (VHF) 450-960 MHz

More information

Voice services over Adaptive Multi-user Orthogonal Sub channels An Insight

Voice services over Adaptive Multi-user Orthogonal Sub channels An Insight TEC Voice services over Adaptive Multi-user Orthogonal Sub channels An Insight HP 4/15/2013 A powerful software upgrade leverages quaternary modulation and MIMO techniques to improve network efficiency

More information

Time and Frequency Domain Equalization

Time and Frequency Domain Equalization Time and Frequency Domain Equalization Presented By: Khaled Shawky Hassan Under Supervision of: Prof. Werner Henkel Introduction to Equalization Non-ideal analog-media such as telephone cables and radio

More information

Voice---is analog in character and moves in the form of waves. 3-important wave-characteristics:

Voice---is analog in character and moves in the form of waves. 3-important wave-characteristics: Voice Transmission --Basic Concepts-- Voice---is analog in character and moves in the form of waves. 3-important wave-characteristics: Amplitude Frequency Phase Voice Digitization in the POTS Traditional

More information

Sistemi di Trasmissione Radio. Università di Pavia. Sistemi di Trasmissione Radio

Sistemi di Trasmissione Radio. Università di Pavia. Sistemi di Trasmissione Radio Programma del corso Tecniche di trasmissione Modulazioni numeriche Sistemi ad allargameneto di banda Sistemi multi-tono Codifica di canale Codifica di sorgente (vocoder) Programma del corso Sistemi di

More information

Performance of Quasi-Constant Envelope Phase Modulation through Nonlinear Radio Channels

Performance of Quasi-Constant Envelope Phase Modulation through Nonlinear Radio Channels Performance of Quasi-Constant Envelope Phase Modulation through Nonlinear Radio Channels Qi Lu, Qingchong Liu Electrical and Systems Engineering Department Oakland University Rochester, MI 48309 USA E-mail:

More information

RECOMMENDATION ITU-R F.1101 * Characteristics of digital fixed wireless systems below about 17 GHz

RECOMMENDATION ITU-R F.1101 * Characteristics of digital fixed wireless systems below about 17 GHz Rec. ITU-R F.1101 1 RECOMMENDATION ITU-R F.1101 * Characteristics of digital fixed wireless systems below about 17 GHz (Question ITU-R 135/9) (1994) The ITU Radiocommunication Assembly, considering a)

More information

6.976 High Speed Communication Circuits and Systems Lecture 1 Overview of Course

6.976 High Speed Communication Circuits and Systems Lecture 1 Overview of Course 6.976 High Speed Communication Circuits and Systems Lecture 1 Overview of Course Michael Perrott Massachusetts Institute of Technology Copyright 2003 by Michael H. Perrott Wireless Systems Direct conversion

More information

RADIO FREQUENCY INTERFERENCE AND CAPACITY REDUCTION IN DSL

RADIO FREQUENCY INTERFERENCE AND CAPACITY REDUCTION IN DSL RADIO FREQUENCY INTERFERENCE AND CAPACITY REDUCTION IN DSL Padmabala Venugopal, Michael J. Carter*, Scott A. Valcourt, InterOperability Laboratory, Technology Drive Suite, University of New Hampshire,

More information

Teaching Convolutional Coding using MATLAB in Communication Systems Course. Abstract

Teaching Convolutional Coding using MATLAB in Communication Systems Course. Abstract Section T3C2 Teaching Convolutional Coding using MATLAB in Communication Systems Course Davoud Arasteh Department of Electronic Engineering Technology, LA 70813, USA Abstract Convolutional codes are channel

More information

GSM/EDGE Output RF Spectrum on the V93000 Joe Kelly and Max Seminario, Verigy

GSM/EDGE Output RF Spectrum on the V93000 Joe Kelly and Max Seminario, Verigy GSM/EDGE Output RF Spectrum on the V93000 Joe Kelly and Max Seminario, Verigy Introduction A key transmitter measurement for GSM and EDGE is the Output RF Spectrum, or ORFS. The basis of this measurement

More information

ANALOG VS DIGITAL. Copyright 1998, Professor John T.Gorgone

ANALOG VS DIGITAL. Copyright 1998, Professor John T.Gorgone ANALOG VS DIGITAL 1 BASICS OF DATA COMMUNICATIONS Data Transport System Analog Data Digital Data The transport of data through a telecommunications network can be classified into two overall transport

More information

4 Digital Video Signal According to ITU-BT.R.601 (CCIR 601) 43

4 Digital Video Signal According to ITU-BT.R.601 (CCIR 601) 43 Table of Contents 1 Introduction 1 2 Analog Television 7 3 The MPEG Data Stream 11 3.1 The Packetized Elementary Stream (PES) 13 3.2 The MPEG-2 Transport Stream Packet.. 17 3.3 Information for the Receiver

More information

1 Multi-channel frequency division multiplex frequency modulation (FDM-FM) emissions

1 Multi-channel frequency division multiplex frequency modulation (FDM-FM) emissions Rec. ITU-R SM.853-1 1 RECOMMENDATION ITU-R SM.853-1 NECESSARY BANDWIDTH (Question ITU-R 77/1) Rec. ITU-R SM.853-1 (1992-1997) The ITU Radiocommunication Assembly, considering a) that the concept of necessary

More information

Revision of Lecture Eighteen

Revision of Lecture Eighteen Revision of Lecture Eighteen Previous lecture has discussed equalisation using Viterbi algorithm: Note similarity with channel decoding using maximum likelihood sequence estimation principle It also discusses

More information

University of Manchester School of Computer Science CS3282: Digital Communications '06 Section 9: Multi-level digital modulation & demodulation.

University of Manchester School of Computer Science CS3282: Digital Communications '06 Section 9: Multi-level digital modulation & demodulation. CS3282 Digital Comms 9.1 2 May 06 / BMGC University of Manchester School of Computer Science CS3282: Digital Communications '06 Section 9: Multi-level digital modulation & demodulation. 9.1. ntroduction:

More information

Comparative Study of Bit Error Rate of Different M-ary Modulation Techniques in AWGN Channel

Comparative Study of Bit Error Rate of Different M-ary Modulation Techniques in AWGN Channel American Journal of Networks and Communications 2016; 5(5): 82-90 http://www.sciencepublishinggroup.com/j/ajnc doi: 10.11648/j.ajnc.20160505.11 ISSN: 2326-893X (Print); ISSN: 2326-8964 (Online) Review

More information

Wireless Communication and RF System Design Using MATLAB and Simulink Giorgia Zucchelli Technical Marketing RF & Mixed-Signal

Wireless Communication and RF System Design Using MATLAB and Simulink Giorgia Zucchelli Technical Marketing RF & Mixed-Signal Wireless Communication and RF System Design Using MATLAB and Simulink Giorgia Zucchelli Technical Marketing RF & Mixed-Signal 2013 The MathWorks, Inc. 1 Outline of Today s Presentation Introduction to

More information

Agilent Digital Modulation in Communications Systems An Introduction. Application Note 1298

Agilent Digital Modulation in Communications Systems An Introduction. Application Note 1298 Agilent Digital Modulation in Communications Systems An Introduction Application Note 1298 Introduction This application note introduces the concepts of digital modulation used in many communications systems

More information

HD Radio FM Transmission System Specifications

HD Radio FM Transmission System Specifications HD Radio FM Transmission System Specifications Rev. E January 30, 2008 Doc. No. SY_SSS_1026s TRADEMARKS The ibiquity Digital logo and ibiquity Digital are registered trademarks of ibiquity Digital Corporation.

More information

System aspects of DVB-T2 for frequency & network planning

System aspects of DVB-T2 for frequency & network planning System aspects of DVB-T2 for frequency & network planning Chris Nokes BBC 23 rd April 2012 1 DVB-T2 System Aspects Background and requirements Main modulation features Coding, constellations, FFT, guard

More information

5 Signal Design for Bandlimited Channels

5 Signal Design for Bandlimited Channels 225 5 Signal Design for Bandlimited Channels So far, we have not imposed any bandwidth constraints on the transmitted passband signal, or equivalently, on the transmitted baseband signal s b (t) I[k]g

More information

BPSK - BINARY PHASE SHIFT KEYING

BPSK - BINARY PHASE SHIFT KEYING BPSK - BINARY PHASE SHIFT KEYING PREPARATION... 70 generation of BPSK... 70 bandlimiting... 71 BPSK demodulation... 72 phase ambiguity...72 EXPERIMENT... 73 the BPSK generator... 73 BPSK demodulator...

More information

A WEB BASED TRAINING MODULE FOR TEACHING DIGITAL COMMUNICATIONS

A WEB BASED TRAINING MODULE FOR TEACHING DIGITAL COMMUNICATIONS A WEB BASED TRAINING MODULE FOR TEACHING DIGITAL COMMUNICATIONS Ali Kara 1, Cihangir Erdem 1, Mehmet Efe Ozbek 1, Nergiz Cagiltay 2, Elif Aydin 1 (1) Department of Electrical and Electronics Engineering,

More information

Fading multipath radio channels

Fading multipath radio channels Fading multipath radio channels Narrowband channel modelling Wideband channel modelling Wideband WSSUS channel (functions, variables & distributions) Low-pass equivalent (LPE) signal ( ) = Re ( ) s t RF

More information

Chap#5 (Data communication)

Chap#5 (Data communication) Chap#5 (Data communication) Q#1: Define analog transmission. Normally, analog transmission refers to the transmission of analog signals using a band-pass channel. Baseband digital or analog signals are

More information

CS263: Wireless Communications and Sensor Networks

CS263: Wireless Communications and Sensor Networks CS263: Wireless Communications and Sensor Networks Matt Welsh Lecture 2: RF Basics and Signal Encoding September 22, 2005 2005 Matt Welsh Harvard University 1 Today's Lecture Basics of wireless communications

More information

Evolution from Voiceband to Broadband Internet Access

Evolution from Voiceband to Broadband Internet Access Evolution from Voiceband to Broadband Internet Access Murtaza Ali DSPS R&D Center Texas Instruments Abstract With the growth of Internet, demand for high bit rate Internet access is growing. Even though

More information

Coding and decoding with convolutional codes. The Viterbi Algor

Coding and decoding with convolutional codes. The Viterbi Algor Coding and decoding with convolutional codes. The Viterbi Algorithm. 8 Block codes: main ideas Principles st point of view: infinite length block code nd point of view: convolutions Some examples Repetition

More information

HD Radio FM Transmission System Specifications Rev. F August 24, 2011

HD Radio FM Transmission System Specifications Rev. F August 24, 2011 HD Radio FM Transmission System Specifications Rev. F August 24, 2011 SY_SSS_1026s TRADEMARKS HD Radio and the HD, HD Radio, and Arc logos are proprietary trademarks of ibiquity Digital Corporation. ibiquity,

More information

Appendix C GSM System and Modulation Description

Appendix C GSM System and Modulation Description C1 Appendix C GSM System and Modulation Description C1. Parameters included in the modelling In the modelling the number of mobiles and their positioning with respect to the wired device needs to be taken

More information

Signal Hound VSG25A User Manual. 2015, Signal Hound, Inc. 35707 NE 86th Ave La Center, WA 98629 USA Phone 360.263.5006 Fax 360.263.

Signal Hound VSG25A User Manual. 2015, Signal Hound, Inc. 35707 NE 86th Ave La Center, WA 98629 USA Phone 360.263.5006 Fax 360.263. VSG25A User Manual Signal Hound VSG25A User Manual 2015, Signal Hound, Inc. 35707 NE 86th Ave La Center, WA 98629 USA Phone 360.263.5006 Fax 360.263.5007 This information is being released into the public

More information

EE4512 Analog and Digital Communications EE4513 Analog and Digital Communications Laboratory Dr. Dennis Silage

EE4512 Analog and Digital Communications EE4513 Analog and Digital Communications Laboratory Dr. Dennis Silage EE4512 Analog and Digital Communications EE4513 Analog and Digital Communications Laboratory Dr. Dennis Silage silage@temple.edu Course syllabus Course textbooks Course grades Course objectives EE4512

More information

What s The Difference Between Bit Rate And Baud Rate?

What s The Difference Between Bit Rate And Baud Rate? What s The Difference Between Bit Rate And Baud Rate? Apr. 27, 2012 Lou Frenzel Electronic Design Serial-data speed is usually stated in terms of bit rate. However, another oftquoted measure of speed is

More information

Clock Recovery in Serial-Data Systems Ransom Stephens, Ph.D.

Clock Recovery in Serial-Data Systems Ransom Stephens, Ph.D. Clock Recovery in Serial-Data Systems Ransom Stephens, Ph.D. Abstract: The definition of a bit period, or unit interval, is much more complicated than it looks. If it were just the reciprocal of the data

More information

DVB-T. The echo performance of. receivers. Theory of echo tolerance. Ranulph Poole BBC Research and Development

DVB-T. The echo performance of. receivers. Theory of echo tolerance. Ranulph Poole BBC Research and Development The echo performance of DVB-T Ranulph Poole BBC Research and Development receivers This article introduces a model to describe the way in which a single echo gives rise to an equivalent noise floor (ENF)

More information

WHITEPAPER. Improving recovered signal quality in TETRA Systems

WHITEPAPER. Improving recovered signal quality in TETRA Systems Improving recovered signal quality in TETRA Systems To ensure the reliable recovery of transmitted digital signals, modern communication systems must overcome a number of factors affecting the signal s

More information

802.11A - OFDM PHY CODING AND INTERLEAVING. Fernando H. Gregorio. Helsinki University of Technology

802.11A - OFDM PHY CODING AND INTERLEAVING. Fernando H. Gregorio. Helsinki University of Technology 802.11A - OFDM PHY CODING AND INTERLEAVING Fernando H. Gregorio Helsinki University of Technology Signal Processing Laboratory, POB 3000, FIN-02015 HUT, Finland E-mail:gregorio@wooster.hut.fi 1. INTRODUCTION

More information

Chapter 2 Mobile Communication

Chapter 2 Mobile Communication Page 77 Chapter 2 Mobile Communication 2.1 Characteristics of Mobile Computing 2.2 Wireless Communication Basics 2.3 Wireless Communication Technologies PANs (Bluetooth, ZigBee) Wireless LAN (IEEE 802.11)

More information

PERFORMANCE ANALYSIS OF MC-CDMA OVER DIFFERENT FADING CHANNELS

PERFORMANCE ANALYSIS OF MC-CDMA OVER DIFFERENT FADING CHANNELS PERFORMANCE ANALYSIS OF MC-CDMA OVER DIFFERENT FADING CHANNELS Vinita 1, Amita Soni 2 1M.Tech. Student, Electronics & Communication, PEC University of Technology, Chandigarh, India 2Assistant Professor,

More information

EGPRS Test: Meeting the Challenge of 8PSK Modulation

EGPRS Test: Meeting the Challenge of 8PSK Modulation EGPRS Test: Meeting the Challenge of 8PSK Modulation Application Note T Time Table of Contents Overview......................................................2 GMSK and 8PSK Modulation......................................3

More information

Digital Transmission (Line Coding)

Digital Transmission (Line Coding) Digital Transmission (Line Coding) Pulse Transmission Source Multiplexer Line Coder Line Coding: Output of the multiplexer (TDM) is coded into electrical pulses or waveforms for the purpose of transmission

More information

ADAPTIVE EQUALIZATION. Prepared by Deepa.T, Asst.Prof. /TCE

ADAPTIVE EQUALIZATION. Prepared by Deepa.T, Asst.Prof. /TCE ADAPTIVE EQUALIZATION Prepared by Deepa.T, Asst.Prof. /TCE INTRODUCTION TO EQUALIZATION Equalization is a technique used to combat inter symbol interference(isi). An Equalizer within a receiver compensates

More information

Introduction to Receivers

Introduction to Receivers Introduction to Receivers Purpose: translate RF signals to baseband Shift frequency Amplify Filter Demodulate Why is this a challenge? Interference (selectivity, images and distortion) Large dynamic range

More information

&"#' ( "#' )*! #+ #,# 1" 1! 2"# ' 6! #* #!"#" +" )$# # # "#$#$ '2 2 ## #1##9 # # ##2 #( # 8##! #9# 9@8!( " " "32#$#$2#9 # "#!#1#$#$#9 '29# # #9$

&#' ( #' )*! #+ #,# 1 1! 2# ' 6! #* #!# + )$# # # #$#$ '2 2 ## #1##9 # # ##2 #( # 8##! #9# 9@8!(   32#$#$2#9 # #!#1#$#$#9 '29# # #9$ !"## $#!%!"# &"#' ( "#' )*! #+ #,# "##!$ -+./0 1" 1! 2"# # -&1!"#" (2345-&1 #$6.7 -&89$## ' 6! #* #!"#" +" 1##6$ "#+# #-& :1# # $ #$#;1)+#1#+

More information

Bachelor of Technology (Electronics and Communication Engineering)

Bachelor of Technology (Electronics and Communication Engineering) A Project Report on Synchronization Techniques for OFDM In partial fulfillment of the requirements of Bachelor of Technology (Electronics and Communication Engineering) Submitted By Govind Singh Parihar

More information

ISSN: 2319-5967 ISO 9001:2008 Certified International Journal of Engineering Science and Innovative Technology (IJESIT) Volume 3, Issue 3, May 2014

ISSN: 2319-5967 ISO 9001:2008 Certified International Journal of Engineering Science and Innovative Technology (IJESIT) Volume 3, Issue 3, May 2014 Nonlinear Adaptive Equalization Based on Least Mean Square (LMS) in Digital Communication 1 Manoj, 2 Mohit Kumar, 3 Kirti Rohilla 1 M-Tech Scholar, SGT Institute of Engineering and Technology, Gurgaon,

More information

300024 - FC - Fundamentals of Communications

300024 - FC - Fundamentals of Communications Coordinating unit: Teaching unit: Academic year: Degree: ECTS credits: 2016 300 - EETAC - Castelldefels School of Telecommunications and Aerospace Engineering 739 - TSC - Department of Signal Theory and

More information

Software Defined Radio

Software Defined Radio Software Defined Radio GNU Radio and the USRP Overview What is Software Defined Radio? Advantages of Software Defined Radio Traditional versus SDR Receivers SDR and the USRP Using GNU Radio Introduction

More information

MSB MODULATION DOUBLES CABLE TV CAPACITY Harold R. Walker and Bohdan Stryzak Pegasus Data Systems ( 5/12/06) pegasusdat@aol.com

MSB MODULATION DOUBLES CABLE TV CAPACITY Harold R. Walker and Bohdan Stryzak Pegasus Data Systems ( 5/12/06) pegasusdat@aol.com MSB MODULATION DOUBLES CABLE TV CAPACITY Harold R. Walker and Bohdan Stryzak Pegasus Data Systems ( 5/12/06) pegasusdat@aol.com Abstract: Ultra Narrow Band Modulation ( Minimum Sideband Modulation ) makes

More information

Original Lecture Notes developed by

Original Lecture Notes developed by Introduction to ADSL Modems Original Lecture Notes developed by Prof. Brian L. Evans Dept. of Electrical and Comp. Eng. The University of Texas at Austin http://signal.ece.utexas.edu Outline Broadband

More information

A SIMULATION STUDY ON SPACE-TIME EQUALIZATION FOR MOBILE BROADBAND COMMUNICATION IN AN INDUSTRIAL INDOOR ENVIRONMENT

A SIMULATION STUDY ON SPACE-TIME EQUALIZATION FOR MOBILE BROADBAND COMMUNICATION IN AN INDUSTRIAL INDOOR ENVIRONMENT A SIMULATION STUDY ON SPACE-TIME EQUALIZATION FOR MOBILE BROADBAND COMMUNICATION IN AN INDUSTRIAL INDOOR ENVIRONMENT U. Trautwein, G. Sommerkorn, R. S. Thomä FG EMT, Ilmenau University of Technology P.O.B.

More information

RF Measurements Using a Modular Digitizer

RF Measurements Using a Modular Digitizer RF Measurements Using a Modular Digitizer Modern modular digitizers, like the Spectrum M4i series PCIe digitizers, offer greater bandwidth and higher resolution at any given bandwidth than ever before.

More information

Digital vs. Analog Transmission

Digital vs. Analog Transmission Digital vs. Analog Transmission Two forms of transmission: digital transmission: data transmission using square waves analog transmission: data transmission using all other waves Four possibilities to

More information

The Boonton USB Peak Power Sensor, Wi-Fi ac Signals and the ETSI EN Standard

The Boonton USB Peak Power Sensor, Wi-Fi ac Signals and the ETSI EN Standard Application Note The Boonton 55006 USB Peak Power Sensor, Wi-Fi 802.11ac Signals and the ETSI EN 300 328 Standard Stephen Shaw Applications Engineer, Boonton Electronics Abstract This application note

More information

Principles of Digital Communication

Principles of Digital Communication Principles of Digital Communication Robert G. Gallager January 5, 2008 ii Preface: introduction and objectives The digital communication industry is an enormous and rapidly growing industry, roughly comparable

More information

A Review on Implementation of QAM on FPGA

A Review on Implementation of QAM on FPGA A Review on Implementation of QAM on FPGA Ravindra H. Sharma, Dr. Kiritkumar R. Bhatt PG Student, Department of ECE, Sardar Vallabhbhai Patel Institute of Technology, Vasad, Gujarat, India. Professor,

More information

A New Digital Communications Course Enhanced by PC-Based Design Projects*

A New Digital Communications Course Enhanced by PC-Based Design Projects* Int. J. Engng Ed. Vol. 16, No. 6, pp. 553±559, 2000 0949-149X/91 $3.00+0.00 Printed in Great Britain. # 2000 TEMPUS Publications. A New Digital Communications Course Enhanced by PC-Based Design Projects*

More information

Antennas & Propagation. CS 6710 Spring 2010 Rajmohan Rajaraman

Antennas & Propagation. CS 6710 Spring 2010 Rajmohan Rajaraman Antennas & Propagation CS 6710 Spring 2010 Rajmohan Rajaraman Introduction An antenna is an electrical conductor or system of conductors o Transmission - radiates electromagnetic energy into space o Reception

More information

Bit Error Rate Performance Analysis on Modulation Techniques of Wideband Code Division Multiple Access

Bit Error Rate Performance Analysis on Modulation Techniques of Wideband Code Division Multiple Access 22 Bit Error Rate Performance Analysis on Modulation Techniques of Wideband Code Division Multiple Access M. A. Masud, M. Samsuzzaman, M. A.Rahman Abstract - In the beginning of 21 st century there has

More information

Mobile Communications Chapter 2: Wireless Transmission

Mobile Communications Chapter 2: Wireless Transmission Mobile Communications Chapter 2: Wireless Transmission Frequencies Signals Antennas Signal propagation Multiplexing Spread spectrum Modulation Cellular systems Prof. Dr.-Ing. Jochen Schiller, http://www.jochenschiller.de/

More information

INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA

INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA COMM.ENG INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA 9/6/2014 LECTURES 1 Objectives To give a background on Communication system components and channels (media) A distinction between analogue

More information

LTE System Specifications and their Impact on RF & Base Band Circuits. Application Note. Products: R&S FSW R&S SMU R&S SFU R&S FSV R&S SMJ R&S FSUP

LTE System Specifications and their Impact on RF & Base Band Circuits. Application Note. Products: R&S FSW R&S SMU R&S SFU R&S FSV R&S SMJ R&S FSUP Application Note Dr. Oliver Werther/Roland Minihold 04.2013 1MA221_1E LTE System Specifications and their Impact on RF & Base Band Circuits Application Note Products: R&S FSW R&S SMU R&S SFU R&S FSV R&S

More information

Research on the UHF RFID Channel Coding Technology based on Simulink

Research on the UHF RFID Channel Coding Technology based on Simulink Vol. 6, No. 7, 015 Research on the UHF RFID Channel Coding Technology based on Simulink Changzhi Wang Shanghai 0160, China Zhicai Shi* Shanghai 0160, China Dai Jian Shanghai 0160, China Li Meng Shanghai

More information

CDMA Performance under Fading Channel

CDMA Performance under Fading Channel CDMA Performance under Fading Channel Ashwini Dyahadray 05307901 Under the guidance of: Prof Girish P Saraph Department of Electrical Engineering Overview Wireless channel fading characteristics Large

More information

For Articulation Purpose Only

For Articulation Purpose Only E305 Digital Audio and Video (4 Modular Credits) This document addresses the content related abilities, with reference to the module. Abilities of thinking, learning, problem solving, team work, communication,

More information

Adaptive Equalization of binary encoded signals Using LMS Algorithm

Adaptive Equalization of binary encoded signals Using LMS Algorithm SSRG International Journal of Electronics and Communication Engineering (SSRG-IJECE) volume issue7 Sep Adaptive Equalization of binary encoded signals Using LMS Algorithm Dr.K.Nagi Reddy Professor of ECE,NBKR

More information

Propagation Channel Emulator ECP_V3

Propagation Channel Emulator ECP_V3 Navigation simulators Propagation Channel Emulator ECP_V3 1 Product Description The ECP (Propagation Channel Emulator V3) synthesizes the principal phenomena of propagation occurring on RF signal links

More information

Multiple Access Techniques

Multiple Access Techniques Multiple Access Techniques Dr. Francis LAU Dr. Francis CM Lau, Associate Professor, EIE, PolyU Content Introduction Frequency Division Multiple Access Time Division Multiple Access Code Division Multiple

More information

Wireless Communication Technologies

Wireless Communication Technologies 1 Wireless Communication Technologies Lin DAI Requirement 2 Prerequisite: Principles of Communications A certain math background Probability, Linear Algebra, Matrix Be interactive in class! Think independently!

More information

BER Performance Analysis of SSB-QPSK over AWGN and Rayleigh Channel

BER Performance Analysis of SSB-QPSK over AWGN and Rayleigh Channel Performance Analysis of SSB-QPSK over AWGN and Rayleigh Channel Rahul Taware ME Student EXTC Department, DJSCOE Vile-Parle (W) Mumbai 056 T. D Biradar Associate Professor EXTC Department, DJSCOE Vile-Parle

More information

Adding Analog Noises to the DOCSIS 3.0 Cable Network

Adding Analog Noises to the DOCSIS 3.0 Cable Network Application Note Adding Analog Noises to the DOCSIS 3.0 Cable Network James Lim Applications Engineer, Noisecom Abstract Injecting Additive White Gaussian Noise (Gaussian Noise) of varying power from Noisecom

More information