VoIP. Wireless, P2P and New Enterprise Voice over IP

Transcription

1 Brochure More information from VoIP. Wireless, P2P and New Enterprise Voice over IP Description: Voice over Internet Protocol (VoIP) is revolutionizing the way people communicate both in the corporate world and in personal life. The enormous success of VoIP has led to its adoption in a wide range of networking technologies. Each network technology has its unique features and poses distinct challenges to the performance of VoIP. VoIP: Wireless, P2P and New Enterprise Voice over IP describes the issues arising in the deployment of VoIP in an emerging heterogeneous network environment. Along with a brief overview of the concepts, protocols, algorithms, and equipment involved in realizing VoIP, this book focuses on two areas; quality and performance issues in deploying VoIP, this book focuses on two areas: quality and performance issues in deploying VoIP over various network settings, and the new mechanisms and protocols in these emerging networks to assist the deployment of VoIP. This book is an invaluable resource for professional network engineers, designers, managers, researchers, decision makers and project managers overseeing VoIP implementations. Market analysts, consultants, and those studying advanced undergraduate and graduate courses on data, voice and multimedia communications will also find this book insightful. VoIP; Wireless, P2P and New Enterprise Voice over IP: - Discusses the basics of VoIP, VoIP codecs and VoIP protocols including SIP and H Details new technologies such as P2P technology, VoWiFi, WiMax, and 3G networks. - Explains the QoS issues arising from deploying VoIP using the new technologies. - Solves the performance issues that emerge when VoIP is deployed over different network technologies. Contents: Preface xvii PART I PRELIMINARIES 1 Introduction to VoIP Networks Public Switched Telephone Network (PSTN) Fundamentals of Internet technology Performance issues in the Internet Quality of Service (QoS) guarantees Summary 15 2 Basics of VoIP Packetization of voice Networking technology Architecture overview Process of making a VoIP call Deployment issues 23

2 2.6 VoIP applications and services Summary 27 3 VoIP Codecs Codec design overview Speech coding techniques Narrowband codecs Wideband and multirate codecs VoIP softwares Summary 38 4 Performance of Voice Codecs Factors affecting VoIP quality Voice quality assessment Subjective measures and MOS score Conversational opinion score E Model Sensitivity to loss Perceptual Evaluation of Speech Quality (PESQ) Tools for lab testbed setup Voice input/output tools Summary 57 5 VoIP Protocols Introduction Signaling protocols Media transport protocols Summary 71 PART II VOIP IN OVERLAY NETWORKS 6 Overlay Networks Internet communication overview Limitations of the Internet Overlay networks Applications of overlay networks 82

3 6.5 Summary 86 7 P2P Technology P2P communication overview Classification of P2P networks Unstructured overlays Structured overlays Distributed Hash Tables (DHTs) Types of DHT Semi structured overlays Keyword search using DHT Summary VoIP over Infrastructure Overlays Introduction VoIP over overlay generic architecture Methods to enhance VoIP quality Estimating network quality Route computation Perceived enhancement of VoIP quality Summary VoIP over P2P VoIP over P2P overlay generic architecture VoIP issues in P2P overlay Case study: Skype Standardization Summary 130 PART III VOIP IN WIRELESS NETWORKS 10 IEEE Wireless Networks Network architecture overview Network access management Basic medium access protocol Physical layer Network resource management IEEE standardization overview 147

4 10.7 Summary Voice over IEEE Wireless Networks VoIP overwlan performance problems VoIP capacity VoIP packet prioritization Handoff performance Reliable delivery Client power management Issues in mesh networks Summary IEEE WiMAX WiMAX overview IEEE MAC protocol architecture MAC layer framing Physical layer Radio resource management Competing technologies Summary Voice over WiMAX Introduction VoIP service delivery overwimax network QoS architecture Call admission control Uplink QoS control Enhanced QoS control for VoIP MAC enhancement strategies Comparison with competing technologies Summary 187 PART IV VOIP IN ENTERPRISE NETWORKS 14 Private Branch Exchange (PBX) Private Branch Exchange (PBX) 191

5 14.2 Case study: Asterisk open source IP PBX Summary Network Address Translation (NAT) and Firewall Introduction NAT fundamentals Applications of NAT Types of NAT Firewall NAT traversal solutions NAT traversal in H Summary 220 PART V VOIP SERVICE DEPLOYMENT 16 Supporting Services and Applications Domain Name System (DNS) ENUM Network monitoring Direct Inward Dialing (DID) Emergency calling (911) Fax Summary Security and Privacy Security and privacy issues Generic issues VoIP related issues Solutions Recommendations Summary IP Multimedia Subsystem (IMS) Introduction Architecture design goals IMS advantages IMS architecture organization 244

6 18.5 Network Attachment SubSystem (NASS) Resource Admission Control Subsystem (RACS) IMS core subsystem IMS QoS management QoS provisioning approach Summary 251 Index 253 Ordering: Order Online - Order by Fax - using the form below Order by Post - print the order form below and send to Research and Markets, Guinness Centre, Taylors Lane, Dublin 8, Ireland.

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