Overview of LEO Satellite Systems
|
|
|
- Ethelbert Owen
- 9 years ago
- Views:
Transcription
1 Overview of LEO Satellite Systems Christopher Redding Institute for Telecommunication Sciences National Telecommunications and Information Administration Boulder, 1999 International Symposium on Advanced Radio Technologies 1
2 Overview Characteristics of LEO Systems Emergence of LEO Technology Classification of LEOs LEO Systems Iridium Government Involvement Conclusion 1999 International Symposium on Advanced Radio Technologies 2
3 Characteristics of LEO Systems Anytime, Anywhere Blends cellular and satellite technologies Satellite Terrestrial Gateways km orbit Below Van Allen Belts Fiber-like propagation delay Voice and data capabilities Hand-held multi-mode phones 1999 International Symposium on Advanced Radio Technologies 3
4 Emergence of LEO Technology Lower propagation delay in LEO vs GEO toll quality voice circuits now possible IP over satellite Use of Ka frequency band vs C and Ku smaller antennas Advances in satellite technology ACTS, MILSTAR inter-satellite links (ISL) on-board processing switching, routing, store-and-forward improvements in satellite manufacturing process 1999 International Symposium on Advanced Radio Technologies 4
5 Emergence of LEO Technology Spot beam frequency reuse Lower launch costs Multiple satellites per launch New launch sites in China and Russia Need for global wireless services voice data Bandwidth demand data applications Vocoder technology toll quality voice at 2400 bps 1999 International Symposium on Advanced Radio Technologies 5
6 LEO versus GEO Less propagation delay for LEOs More LEOs required for global coverage Single LEO failure will not result in lost communication Less exposure to Van Allen Belt radiation Inter-satellite links versus bent-pipe Jitter Ka band Rain attenuation 1999 International Symposium on Advanced Radio Technologies 6
7 LEO Subscriber Growth 1999 International Symposium on Advanced Radio Technologies 7
8 Classes of LEOs Little LEOs Non-voice services Orbcomm LEO One Final Analysis Big LEOs Voice plus limited data services Iridium Globalstar Constellation Communications Broadband LEOs High-speed data plus voice Teledesic SkyBridge 1999 International Symposium on Advanced Radio Technologies 8
9 Little LEOs System Orbcomm LEO One Final Analysis Company Orbcomm, Orbital Sciences LEO One Final Analysis, General Dynamics Info Systems Service Types messaging, paging, messaging, paging, messaging, , file transfer Voice (kbps) Data Rate 2.4 kbps uplink 4.8 kbps downlink kbps uplink 24 kbps downlink TBD Orbit Altitude (km) No. of Satellites No. of Orbit Planes Earth Stations Mobile Uplink MHz MHz VHF/UHF Mobile Downlink MHz, 400 MHz MHz MHz Feeder Uplink MHz MHz VHF/UHF Feeder Downlink MHz, 400 MHz MHz VHF/UHF ISL No No No Service Date International Symposium on Advanced Radio Technologies 9
10 Big LEOs System Iridium Globalstar Constellation Communications Company Motorola Loral, Alcatel, Qualcomm Orbital Sciences, Bell Atlantic, Raytheon Service Types voice, data, fax, paging, messaging voice, data, fax, paging, messaging Voice (kbps) 2.4 adaptive 2.4 / 4.8 / Data (kbps) Orbit Altitude (km) Number of Satellites Orbit Planes Earth Stations TBD Beams / Satellite /32 Footprint Dia. (km) TBD voice, data, fax Mobile Uplink (MHz) (L-band) (L-band) (S-band) Mobile Downlink (MHz) (L-band) (S-band) (L-band) Feeder Uplink (GHz) (Ka-band) (C-band) (C-band) Feeder Downlink (GHz) (Ka-band) (C-band) (C-band) ISL Yes (4) No No Service Date International Symposium on Advanced Radio Technologies 10
11 Broadband LEOs System SkyBridge Teledesic Company Alcatel, Loral Motorola, Boeing, Matra Marconi, Gates, McCaw Service Types internet access, voice, data, video, videoconferencing Voice (kbps) TBD 16 Data (kbps) 2,000 uplink 20,000 downlink Orbit Altitude (km) Number of Satellites Number of Orbit Planes 2 12 Earth Stations 200 TBD Beams / Satellite ~50 64 Footprint Diameter(km) internet access, voice, data, video, videoconferencing 2,000 uplink 64,000 downlink Feeder Uplink (MHz) Ku-band 28,600-29,100 (Ka-band) Feeder Downlink (MHz) Ku-band 18,800-19,300 (Ka-band) ISL No Yes (8) Service Date International Symposium on Advanced Radio Technologies 11
12 LEO Orbital Altitudes 1999 International Symposium on Advanced Radio Technologies 12
13 Orbcomm Operational since 1996 Trailer tracking services for trucking fleets Two-way messaging technology being marketed to US government and military GPS hand-held satellite communicator integrates Orbcomm technology for worldwide messaging Internet capabilities Planned IP messaging gateway for HTTP, XML and UDP messaging functions SMTP/POP3 and X.400 global wireless International Symposium on Advanced Radio Technologies 13
14 Orbcomm Constellation 1999 International Symposium on Advanced Radio Technologies 14
15 LEO One Provides near real-time store-and-forward messaging tracking and fleet management monitoring and remote control two-way messaging emergency services transaction processing Finished development of satellite antenna system and gateway station 1999 International Symposium on Advanced Radio Technologies 15
16 Final Analysis 36 satellites in 6 orbital planes at 51E 2 satellites in 83E plane Three ground stations completed Terminals Remote Terminal Messaging Terminal File Transfer Terminal Services offered real-time near real-time store and forward 1999 International Symposium on Advanced Radio Technologies 16
17 Globalstar 36 Globalstar satellites in space as of August 17 launch Fleet of 48 will be in orbit by December 4 per launch Commercial service to start October 10 Employs bent-pipe vs ISL proven technology Coverage concentrated between +/- 70E Phone manufacturers Ericsson, Qualcomm and Telital 1999 International Symposium on Advanced Radio Technologies 17
18 Globalstar Constellation 1999 International Symposium on Advanced Radio Technologies 18
19 Data oriented Constellation Communications Initial phase will have single equatorial orbit of 11 satellites Coverage between +/- 23 E Service to begin in 2001 Additional 35 will be deployed Five per orbit in seven circular inclined orbits Global service in International Symposium on Advanced Radio Technologies 19
20 Teledesic Combines efforts with Celestri (1998) Motorola becomes prime Teledesic partner Internet-in-the-sky Portable vs mobile 45 cm antenna directional Lockheed Martin launch provider Motorola - constellation's system provider 1999 International Symposium on Advanced Radio Technologies 20
21 Teledesic Constellation 1999 International Symposium on Advanced Radio Technologies 21
22 SkyBridge Protects GEO systems in the Ku-band through frequency re-use concept Proven technologies reduce cost and overall risks of system gateways use ATM-based interfaces supports Internet protocols "bent-pipe" system terrestrial-based switching Ku-band frequency lower hardware costs due to mature technology less signal attenuation due to rain than Ka frequencies 1999 International Symposium on Advanced Radio Technologies 22
23 Iridium Voice network operational since November 98 On-board processing and ISLs Separate voice and data channels 2400 bps voice: low latency 2400 bps data: error-free delivery packet switched data channel expected in 99 Types of connections Iridium to/from PSTN Iridium to Iridium 1999 International Symposium on Advanced Radio Technologies 23
24 Iridium Constellation 1999 International Symposium on Advanced Radio Technologies 24
25 Iridium System Overview 1999 International Symposium on Advanced Radio Technologies 25
26 Iridium Call Scenario 1999 International Symposium on Advanced Radio Technologies 26
27 Iridium in the News Iridium gets US Military as First Big Customer (1/26/98) The World's First Global Satellite Telephone and Paging Company Starts Service (11/1/98) Iridium CEO opts to leave (6/14/99) Iridium cuts staff, stock suffers (6/14/99) Iridium cuts prices to boost subscriber base (6/21/99) Motorola calls for help with Iridium (7/14/99) Iridium Files Chapter 11 Bankruptcy (8/13/99) 1999 International Symposium on Advanced Radio Technologies 27
28 Government Involvement Enhanced Mobile Satellite Service (EMSS) Iridium network 4 DISA contracts (> $300M) Secure calling via DoD gateway End-to-end security via secure phones Future Narrow Band Digital Terminal (FNBDT) Government funded / Industry supported Working Group formed to develop secure mode of operation between STU-III and GSM, CDMA and LEO satellite systems such as Iridium and Globalstar 1999 International Symposium on Advanced Radio Technologies 28
29 Conclusion LEO satellites in period of great interest Latency eases voice and IP applications ISL vs bent-pipe Broadband LEOs will provide last mile broadband connectivity gap Iridium effects on other LEOs Seamless global communications now a reality 1999 International Symposium on Advanced Radio Technologies 29
Second International Symposium on Advanced Radio Technologies Boulder Co, September 8-10, 1999
Second International Symposium on Advanced Radio Technologies Boulder Co, September 8-10, 1999 Overview of Satellite Communications Tim Pratt Center for Wireless Telecommunications Virginia Tech History
5. Satellite Systems. History of Satellite Communications
5. Satellite Systems History and Orbits Routing, Localization, and Hand-over Systems 2005 Burkhard Stiller and Jochen Schiller FU Berlin M5 1 History of Satellite Communications 1945 Arthur C. Clarke about
Mobile Computing. Chapter 5: Satellite Systems
Mobile Computing Chapter 5: Satellite Systems Prof. Sang-Jo Yoo History of satellite communication 1945 Arthur C. Clarke publishes an essay about Extra Terrestrial Relays 1957 First satellite SPUTNIK by
Physical Layer. Communication Satellites. ECE 453 Introduction to Computer Networks. Lecture 3 Physical Layer II
ECE 453 Introduction to Computer Networks Lecture 3 Physical Layer II 1 Physical Layer Services transmit bits from sender to receiver. Transmission media Guided: twisted pair, coax, fiber Unguided (wireless):
Mobile Communications: Satellite Systems
Mobile Communications: Satellite Systems Mobile Communication: Satellite Systems - Jochen Schiller http://www.jochenschiller.de 1 History of satellite communication 1945 Arthur C. Clarke publishes an essay
Mobile Communications Chapter 5: Satellite Systems
Mobile Communications Chapter 5: Satellite Systems History Basics Localization Handover Routing Systems History of satellite communication 1945 Arthur C. Clarke publishes an essay about Extra Terrestrial
Satellite Basics. Benefits of Satellite
Satellite Basics Benefits of Satellite People need access to enterprise-class, high-speed voice, video and data applications wherever they happen to be. Satellite connectivity has the power to drive communications
Introduction to Inmarsat and the Global Xpress Ka Band System
Introduction to Inmarsat and the Global Xpress Ka Band System Presentation for Caribbean ICT Roadshow Trinidad and Tobago September February, 2010 17, 2010 www.inmarsat.com www.inmarsat.com Agenda Brief
Mobile Communications Chapter 5: Satellite Systems
History of satellite communication Mobile Communications Chapter 5: Satellite Systems History Basics Orbits LEO, MEO, GEO Examples Handover, Routing 1945 Arthur C. Clarke publishes an essay about Extra
Mobile Communications
Mobile Communications Vincent Roca (2001-10) Claude Castelluccia (1998-2001) INRIA [email protected] [email protected] http://planete.inrialpes.fr/~roca/ Overview of the Course! Part 1:
www.turksat.com TURKSAT A.S. Turksat, one of the leading operators in the satellite communication business, offers flexible solutions by providing its customers with cable and wireless broadcasting,
TELEDESIC SATELLITE SYSTEM OVERVIEW. M. A. Sturza - Teledesic Corporation F. Ghazvinian - Teledesic Corporation
TELEDESIC SATELLITE SYSTEM OVERVIEW M. A. Sturza - Teledesic Corporation F. Ghazvinian - Teledesic Corporation 1. INTRODUCTION There is a significant worldwide demand for broadband communications capacity.
Module 5. Broadcast Communication Networks. Version 2 CSE IIT, Kharagpur
Module 5 Broadcast Communication Networks Lesson 10 Satellite Networks Specific Instructional Objectives At the end of this lesson, the student will be able to: Explain different type of satellite orbits
CONTENTS. Satellite Fleet. Türksat 2A. Türksat 3A. Türksat 4A. Türksat 4B. Türksat VSAT
www.turksat.com TURKSAT A.S. Turksat, one of the leading operators in the satellite communication business, offers flexible solutions by providing its customers with cable and wireless broadcasting, high-speed
Environmental Monitoring: Guide to Selecting Wireless Communication Solutions
Environmental Monitoring: Guide to Selecting Wireless Communication Solutions By: Scott South Published in WaterWorld, January 2005 (Page 48) Rapidly growing demands for information and increased productivity
communication over wireless link handling mobile user who changes point of attachment to network
Wireless Networks Background: # wireless (mobile) phone subscribers now exceeds # wired phone subscribers! computer nets: laptops, palmtops, PDAs, Internet-enabled phone promise anytime untethered Internet
Where it s Been and Where it s Going. Michael Cruess March 28, 2012
Where it s Been and Where it s Going. Michael Cruess March 28, 2012 Iridium Brief 3/28/2012 About GIT Woman Owned Small Business CerFfied by WBENC 1/31/10 ISO 9001:2008 RegistraFon # 19.4311 2/9/07 Provider
Analysis of the US Government and Military Commercial Satellite Market Turbulent Government Contracts Impact Growth
Analysis of the US Government and Military Commercial Satellite Market Turbulent Government Contracts Impact Growth November 2014 Contents Section Slide Number Executive Summary 4 Market Overview 8 Total
Chapter 11 Satellite Systems
Chapter 11 Satellite Systems 1 Outline Introduction Types of Satellite Characteristic of Satellite Systems Satellite System Infrastructures Call Setup GPS Limitations of GPS Beneficiaries of GPS Applications
Inmarsat & Global Xpress
Inmarsat & Global Xpress Global Mobile Broadband Laura Roberti [email protected] Bangkok, 19 th September 2014 Inmarsat in L-band: an overview Worldwide coverage Land, sea, and air mobile services,
Inmarsat Global Xpress Global, Mobile, Trusted. U.S. Government > Services > Global Xpress
Inmarsat Global Xpress Global, Mobile, Trusted. U.S. Government > Services > Global Xpress The New Standard in Mobile Satellite Communications As a long-trusted partner of the U.S. government sector, we
MOBILE SATELLITE SERVICES (MSS) REPORT
PSWN Public Safety Wireless Network MOBILE SATELLITE SERVICES (MSS) REPORT PSWN 1 Mobile Satellite Service Foreword This report is a primer for interested parties to become more familiar with the various
ORBCOMM World s First Commercial Low-Earth Orbit Satellite Communications System
ORBCOMM World s First Commercial Low-Earth Orbit Satellite Communications System ORBCOMM: The Missing Link - Affordable Global Data And Messaging Service: - Global two-way data and messaging - Monitoring,
Chapter 4 Solution to Problems
Chapter 4 Solution to Problems Question #1. A C-band earth station has an antenna with a transmit gain of 54 db. The transmitter output power is set to 100 W at a frequency of 6.100 GHz. The signal is
CME 574 Satellite Communications
CME 574 Satellite Communications Fall, 2007 Dr Hazem Al-Otum Ref. Ellwood Brem, Instructor To orbit the Earth is to fall down and miss the ground! Topics we will cover: History Satellite Mechanics Orbital
Communication Satellite Systems Trends and Network Aspects
Communication Satellite Systems Trends and Network Aspects Paul Anderson Communication Architectures Department The Aerospace Corporation [email protected] http://www.aero.org/ Lee Center, Caltech
DocumentToPDF trial version, to remove this mark, please register this software. WIRELESS COMMUNICATION -THE ULTIMATE WIRELESS NETWORK
WIRELESS COMMUNICATION TOPIC: IRIDIUM SATELLITE SYSTEM (ISS) -THE ULTIMATE WIRELESS NETWORK Pre s e n t e d b y : D.Narmada, III.B.Tech, 05121A0455 Mail_Id :[email protected] A.Nithya, III.B.Tech,
Development of Wireless Networks
Development of Wireless Networks Cellular Revolution In 1990 mobile phone users populate 11 million. By 2004 the figure will become 1 billion Phones are most obvious sign of the success of wireless technology.
Low Orbit Satellite communications as a viable alternative for remote metering and control. Juan Andrés Antoniuk
Low Orbit Satellite communications as a viable alternative for remote metering and control Juan Andrés Antoniuk Advanced metering overview Management Software middleware Cellular (GPRS) HV PLC Wireless
Satellite Services for Internet Access in Rural Areas 1
Satellite Services for Internet Access in Rural Areas 1 Hans Kruse McClure School of Communication Systems Management Ohio University [email protected] Executive Summary This report examines the use of direct
Satellite Based Broadband Networking
WIRELESS MULTIMEDIA AND INTERNET VIA SATELLITE Mark A. Sturza Farzad Ghazvinian Teledesic Corporation 2300 Carillon Point Kirkland, Washington 98033 USA +1 818 907 1302 voice +1 206 803 1409 voice +1 818
Presentation by: Dimov Stojce Ilcev DUT. CNS Systems. August 2011
Satellite Asset Tracking (SAT) of Ships, Containers, Vehicles, Wagons and Aircraft Presentation by: Dimov Stojce Ilcev DUT CNS Systems August 2011 SATELLITE OPERATORS Current Satellite Constellations Suitable
Data Transfer Rate Comparison
LTE Broadband and Public Safety David Fein, Project Manager November 2011 Executive Overview Long Term Evolution (LTE) is a relatively new standard for wireless communications, adopted by commercial and
Chapters 1-21 Introduction to Wireless Communication Systems
Chapters 1-21 Introduction to Wireless Communication Systems Yimin Zhang, Ph.D. Department of Electrical & Computer Engineering Villanova University http://yiminzhang.com/ece8708 Yimin Zhang, Villanova
Inmarsat Aviation overview. Leo Mondale Managing Director, Inmarsat
Inmarsat Aviation overview Leo Mondale Managing Director, Inmarsat Agenda Overview of Q1 financial performance Update on the Inmarsat-5/ Global Xpress programme The connected world Conclusion Q1 financial
METHODS OF GATHERING EGM DATA Stephen Easley TXU Lone Star Pipeline
METHODS OF GATHERING EGM DATA Stephen Easley TXU Lone Star Pipeline 301 South Harwood St., Dallas, TX 75201 INTRODUCTION Today s changing world of computers and data communications is an exciting time
Evolution of Satellite Communication Systems
Mathieu DERVIN Brussels, 6th May 2015 Brussels, May 2015 Agenda I. From Sputnik to wideband satellite services: The key technological evolutions II. Increase the satellite system capacity: A global system
1. Introduction. FER-Zagreb, Satellite communication systems 2011/12
1. Introduction Topics History Characteristics of satellite communications Frequencies Application 1 History Arthur C. Clark suggested in 1945. Earth coverage with 3 geostationary satellites. On 4th of
Satellite Bandwidth 101
Satellite Bandwidth 101 C R I T I C A L C O M M U N I C A T I O N S S O L U T I O N S A Primer for Understanding You Bandwidth Needs The most important thing we build is trust A commonly misunderstood
Rocket Science Made Simple
Rocket Science Made Simple Satellite Connectivity For Aviation Explained George Nicola 1 and Michele Franci 2 Inmarsat, London, EC1Y 1AX, United Kingdom Any satellite communication system is required to
Iridium Satellite Data Services White Paper. Version 1.0 June 2 nd 2003
Iridium Satellite Data Services White Paper Version 1.0 June 2 nd 2003 Purpose: This document describes Iridium Satellite s current data services. The objective is to provide an overview of the Iridium
OPTICAL SATELLITE NETWORKING. Indicative References
OPTICAL SATELLITE NETWORKING Indicative References 1 What is a network? It takes 2 nodes to have a link It takes minimum 3 nodes to have a network If the nodes are satellites and the links are optical
PNG : A new CTD profiling float
PNG : A new CTD profiling float IRIDIUM - some results Christian GAC and Sylvie LE BRAS Ifremer - TMSI-TSI-ME Iridium Features 66+ satellites in low earth orbit Designed for voice communications Real-time:
FIGURE 12-1 Original Advanced Mobile Phone Service (AMPS) frequency spectrum
FIGURE 12-1 Original Advanced Mobile Phone Service (AMPS) frequency spectrum FIGURE 12-2 Complete Advanced Mobile Phone Service (AMPS) frequency spectrum TABLE 12-1 AMPS Frequency Allocation TABLE 12-2
Wireless Technologies for the 450 MHz band
Wireless Technologies for the 450 MHz band By CDG 450 Connectivity Special Interest Group (450 SIG) September 2013 1. Introduction Fast uptake of Machine- to Machine (M2M) applications and an installed
Separating Fact from Fiction: HTS Ka- and Ku- Band for Mission Critical SATCOM
Home Separating Fact from Fiction: HTS Ka- and Ku- Band for Mission Critical SATCOM Ben Pawling, Harris CapRock and Keith Olds, Harris Government Communications August 14, 2013 Whether for enterprise,
ABOUT EMC HISTORY EXPERIENCE SERVICES
ABOUT EMC HISTORY 25 Years of Industry Experience Owned by ABRY Partners Headquartered in Miami, FL Focus on Emerging Markets End-to-End Communications Services EXPERIENCE Started by relationship with
Evaluation for Cargo Tracking Systems in Railroad Transportation
INTERNATIONAL FORUM ON SHIPPING PORTS AND AIRPORTS Evaluation for Cargo Tracking Systems in Railroad Transportation N.K.Park Tongmyung Univ CONTENTS INTRODUTION BASIC RESEARCH REVIEW THE RAILWAY TRACKING
app coverage applied EXTRACT FROM THE ERICSSON MOBILITY REPORT
app applied EXTRACT FROM THE ERICSSON MOBILITY REPORT NOVEMBER 2013 App COVERAGE applied The use of smartphones and tablets has caused a surge in mobile data around the world. Today, users want reliable
Inmarsat Global Xpress Global, Mobile, Trusted. U.S. Government > Services > Global Xpress
Inmarsat Global Xpress Global, Mobile, Trusted. U.S. Government > Services > Global Xpress The New Standard in Mobile Satellite Communications As a long-trusted partner of the U.S. government sector, we
High speed Internet in sparsely populated areas
T E C H N O L O G Y W H I T E P A P E R High speed Internet in sparsely populated areas Covering sparsely populated areas is not economically viable using conventional techniques. A solution combining
HYLAS 1 Programme Overview
HYLAS 1 Programme Overview David Bestwick October 2011 AGENDA 1. The HYLAS 1 System 2. Products 3. Application Areas of Interest THE HYLAS 1 SYSTEM The HYLAS 1 System Architecture HYLAS 1 Coverage A single
Telecommunications and the Information Age ET108B. Cell Phone Network
Telecommunications and the Information Age ET108B Cell Phone Network The Cellular Telephone Network Cellular Telephone Features Carrying Data Across the Cellular Network Satellite Telephone Service Cellular
http://www.sprint.com/landings/airave/files/airave_access_point_faqs.pdf?intmkt=mkt:ms:20131 030:AIR:MSU:EEE:FAQs
http://www.sprint.com/landings/airave/files/airave_access_point_faqs.pdf?intmkt=mkt:ms:20131 030:AIR:MSU:EEE:FAQs Sprint AIRAVE FAQs What is the Sprint AIRAVE and how does it work? The Sprint AIRAVE is
Enabling Modern Telecommunications Services via Internet Protocol and Satellite Technology Presented to PTC'04, Honolulu, Hawaii, USA
CASE STUDY Enabling Modern Telecommunications Services via Internet Protocol and Satellite Technology Presented to PTC'04, Honolulu, Hawaii, USA Stephen Yablonski and Steven Spreizer Globecomm Systems,
Appendix A: Basic network architecture
Appendix A: Basic network architecture TELECOMMUNICATIONS LOCAL ACCESS NETWORKS Traditionally, telecommunications networks are classified as either fixed or mobile, based on the degree of mobility afforded
Chapter 1 Introduction to Wireless Communication Systems. School of Information Science and Engineering, SDU
Chapter 1 Introduction to Wireless Communication Systems School of Information Science and Engineering, SDU Outline Wireless History The Wireless Vision Technical Challenges Wireless definitions Classification
CHEIA Satellite Communication Center
Opened in October 1976,, from Prahova region, Romania, is the largest teleport in Central and South-eastern Europe. Located in a unique natural environment in the country due to the mountainous relief
Narrowband and Broadband Access Technologies
Computer Networks and Internets, 5e Chapters 12 and 16 Access and Interconnection Technologies (slidesets abridged/combined) By Douglas Comer Modified from the lecture slides of Lami Kaya ([email protected])
Chapter 6 Telecommunications, Networks, and Wireless. Computing
Chapter 6 Telecommunications, Networks, and Wireless Computing Essay Questions: 1. Define a hub, switch, and a router. 2. List the challenges associated with managing contemporary telecommunications and
Strategic Review of Satellite and Space Science use of Spectrum. Satellite workshop 3 July 2015
Strategic Review of Satellite and Space Science use of Spectrum Satellite workshop 3 July 2015 Agenda 09:30 10:00 Arrival and refreshments 10:00 10:30 Introduction 10:30 12:00 Stakeholder presentations
Introduction to satellite constellations orbital types, uses and related facts
Introduction to satellite constellations orbital types, uses and related facts Dr Lloyd Wood space team, Cisco Systems http://www.cisco.com/go/space Guest lecture, ISU summer session July 2006 created
www.ovum.com LTE450 Julian Bright, Senior Analyst [email protected] LTE450 Global Seminar 2014 Copyright Ovum 2014. All rights reserved.
www.ovum.com LTE450 Julian Bright, Senior Analyst [email protected] LTE450 Global Seminar 2014 We are integrating 2 complementary ITM businesses Telecoms & IT Research Telecoms & Media Research 60+
Not All Bands Are Created Equal
Harris CapRock White Paper Not All Bands Are Created Equal A Closer Look at Ka & Ku High Throughput Satellites INTRODUCTION The advent of high-throughput satellites (HTS) enables network service providers
Intelsat S.A. The World s Leading Provider of Satellite Services. ITSO - SADC Satellite policy capacity building workshop
Intelsat S.A. The World s Leading Provider of Satellite Services ITSO - SADC Satellite policy capacity building workshop 1 Introduction & Guidelines Ashaad Rambharos Customer Solutions Engineer for Intelsat
Broadband Wireless Access Technologies and Applications
Broadband Wireless Access Technologies and Applications Dr. Patrick Perini Emerging Technologies September 6, 2000 International Symposium [email protected] on Advanced Radio Technologies 1 Agenda The
Defining Connectivity at Sea
Shipping Insight, Stamford CT Oct 2015 Defining Connectivity at Sea Shane Rossbacher SVP Business Development, Inmarsat Maritime A brief history The industry leader for more than 35 years 1979 The International
Use Current Success to Develop Future Business
>THIS IS THE WAY Use Current Success to Develop Future Business Malur Narayan / Nitin Khanna February 2005 >THIS IS Wireless Broadband Opportunities & Segments Mobile Broadband Access Enterprise Broadband
Connecting Air-Ground Operators through the Upper Aerial Layer
Connecting Air-Ground Operators through the Upper Aerial Layer Jerry Knoblach, Chairman & CEO (480) 403-0032 www.spacedata.net 0 Wide Area Comm Platforms Near Space much closer than satellites 400 X Lower
UNITED STATES OF AMERICA DRAFT PROPOSALS FOR THE WORK OF THE CONFERENCE
UNITED STATES OF AMERICA DRAFT PROPOSALS FOR THE WORK OF THE CONFERENCE Agenda Item 10: to recommend to the Council, items for inclusion in the agenda for the next WRC, and to give its views on the preliminary
Mobile Communications Exercise: Satellite Systems and Wireless LANs. Georg von Zengen, IBR, TU Braunschweig, www.ibr.cs.tu-bs.de
Mobile Communications Exercise: Satellite Systems and Wireless LANs N 1 Please define the terms inclination and elevation using the following two figures. How do these parameters influence the usefulness
The Importance of the Global C-band Allocation for Satellite Communications Services
FOUNTAIN COURT, 2 VICTORIA SQ., ST ALBANS HERTFORDSHIRE, AL1 3TF, ENGLAND TELEPHONE:+1 202 390 1885 EMAIL: [email protected] WEBSITE: www.gvf.org The Importance of the Global C-band Allocation for
Indian Journal of Advances in Computer & Information Engineering Volume.1 Number.1 January-June 2013, pp.1-5 @ Academic Research Journals.
Cellular System Rajat Chugh, Parag Jasoria, Tushar Arora, Nitin Ginotra and Vivek Anand V Semester, Department of Computer Science and Engineering, Dronacharya College of Engineering, Khentawas, Farukhnagar,
ETL Systems. RSSC Dubna July 2014. Global Leaders in Satellite RF Engineering & Custom Build ROUTE AMPLIFY SPLIT SWITCH
ETL Systems RSSC Dubna July 2014 Global Leaders in Satellite RF Engineering & Custom Build Heritage Custom Build & Design Specialist RF equipment for 25 years 80% International Sales 75 staff in 3 global
1G to 4G. Overview. Presentation By Rajeev Bansal Director(Mobile-1) Telecommunication Engineering Centre
1G to 4G Overview Presentation By Rajeev Bansal Director(Mobile-1) Telecommunication Engineering Centre Mobile Networks differentiated from each other by the word Generation 1G, 2G, 2.5G, 2.75G, 3G milestones
Satellite Basics Term Glossary
Satellite Basics Term Glossary AES Advanced Encryption Standard is an encryption standard comprised of three blocks of ciphers AES 128, AES 192, and AES 256 ACM Adaptive Coding and Modulation uses an algorithm
Packetized Telephony Networks
Packetized Telephony Networks Benefits of Packet Telephony Networks Traditionally, the potential savings on long-distance costs was the driving force behind the migration to converged voice and data networks.
Deploying In-Building Wireless Solutions
Deploying In-Building Wireless Solutions How enterprise, wireless service providers and building owners can better serve their employees, customers and tenants by deploying a converged in-building wireless
ADSL or Asymmetric Digital Subscriber Line. Backbone. Bandwidth. Bit. Bits Per Second or bps
ADSL or Asymmetric Digital Subscriber Line Backbone Bandwidth Bit Commonly called DSL. Technology and equipment that allow high-speed communication across standard copper telephone wires. This can include
TWO-WAY INTERNET OVER ipstar USING ADVANCED ERROR CORRECTION AND DYNAMIC LINKS
AIAA-2002-1944 TWO-WAY INTERNET OVER ipstar USING ADVANCED ERROR CORRECTION AND DYNAMIC LINKS William Thesling*, Mark Vanderaar*, Mark Thompson**, Peter Hamilton**, Paiboon Panuwattanawong*** and Richard
Satellite Asset Tracking and Fleet Management (SATFM) and SCADA. Presentation by: Dimov Stojce Ilcev DUT. CNS Systems
Satellite Asset Tracking and Fleet Management (SATFM) and SCADA Presentation by: Dimov Stojce Ilcev DUT CNS Systems August 2011 SATELLITE OPERATORS Current Satellite Constellations Suitable for SATFM and
What, Why and How. Hosted Payloads: A guide to commercially hosted government payloads from the Hosted Payload Alliance. www.hostedpayloadalliance.
Hosted Payloads: What, Why and How A guide to commercially hosted government payloads from the Hosted Payload Alliance The Hosted Payload Alliance (HPA) is a satellite industry alliance formed in 2011
CARLETON UNIVERSITY Department of Systems and Computer Engineering. SYSC4700 Telecommunications Engineering Winter 2014. Term Exam 13 February 2014
CARLETON UNIVERSITY Department of Systems and Computer Engineering SYSC4700 Telecommunications Engineering Winter 2014 Term Exam 13 February 2014 Duration: 75 minutes Instructions: 1. Closed-book exam
CHAPTER 1 1 INTRODUCTION
CHAPTER 1 1 INTRODUCTION 1.1 Wireless Networks Background 1.1.1 Evolution of Wireless Networks Figure 1.1 shows a general view of the evolution of wireless networks. It is well known that the first successful
Wireless Broadband Access
Wireless Broadband Access (Brought to you by RMRoberts.com) Mobile wireless broadband is a term used to describe wireless connections based on mobile phone technology. Broadband is an electronics term
Wireless Cellular Networks: 3G
Wireless Cellular Networks: 3G Raj Jain Washington University Saint Louis, MO 63131 [email protected] These slides are available on-line at: http://www.cse.wustl.edu/~jain/cse574-06/ 7-1 Overview Wireless
Global Consumer Satellite Broadband Internet Market
Global Consumer Satellite Broadband Internet Market The Beginning of Global Ka-band Coverage and its Growing Impact on the Global Market November 2011 Contents Introduction 7 Executive Summary 17 Market
Bringing Cost-Effective Satellite Communications Technology
APSCC-PTC 12 Breakout Session Bringing Cost-Effective Satellite Communications Technology Rick Abbasi Senior Product Marketing Director, Network Services 6243-1 Intelsat - Global Satellite Leader Industry
The Total Mobile Communications Network
The Total Mobile Communications Network Overview The Company Services Markets The System : Terminals/Satellites Future The Company Inmarsat Ltd Owns and operates a global network of nine geostationary
Satellite Based Solutions for Disaster Recovery and Prevention
Satellite Based Solutions for Disaster Recovery and Prevention ITU/ESCAP Regional Workshop on Disaster Communications 12 to 15 December 2006 Bangkok, Thailand Koh Eui-Kon, Ph. D President The Asia-Pacific
SATELLITE COMMUNICATION
SATELLITE COMMUNICATION By Gaurish Kumar Tripathi. 1.0 INTRODUCTION: The use of satellite in communication system is very much a fact of everyday in life. This is evidence by the many homes, which are