Voice Over IP in Wireless Heterogeneous Networks: Signaling, Mobility and Security

ISBN-13: 9781402066306 / Angielski / Twarda / 2008 / 226 str.

Ramjee Prasad; Hanane Fathi; Shyam S. Chakraborty

Opis

karmano hy api boddhavyam boddhavyam ca vikarmanah akarmanas ca boddhavyam gahana karmano gatih The intricacies of action are very hard to understand. Therefore one should know properly what action is, what forbidden action is, and what inaction is. The Bhagvad Gita (4.17) This book is the outcome of the research contribution of Hanane Fathi towards her Ph.D. studies jointly with Shyam S. Chakraborty and Ramjee Prasad as - pervisors. To the best of the authors' knowledge, this is a ?rst book on voice over Internet protocol (VoIP) covering such a broad perspective as illustrated in Figure P.1. This book is a new, forward-looking resource that explores the present and future trends of VoIP in the wireless heterogeneous networks. This book also provides the discovery path that these network infrastructures are following from a perspective of synergies with the present systems and how they will pave the way for future systems. This book is intended for everyone in the ?eld of wireless information and multimedia communications. It provides different levels of material suitable for managers, researchers, network providers, and graduate students. We hope that all readers will experience the bene?ts and power of this knowledge. We have tried our best to make each chapter comprehensive and we cannot claim that this book is without errors. Any remarks to improve the text and correct the errors would be highly appreciated.

Spis treści

About Authors. Acknowledgements. Preface. 1 Introduction. 1.1 Quality of Experience: Signalling, Mobility and Security. 1.2 Challenges due to the Wireless Link. 1.3 Book Outline. References. 2 IP-based Wireless Heterogeneous Networks. 2.1 Introduction. 2.2 IEEE 802.11 Wireless Local Area Networks. 2.3 IEEE 802.16 Wireless Metropolitan Area Networks. 2.4 3GPP Cellular Systems. 2.5 Integration of WLAN, WMAN and GPRS/UMTS. 2.6 The IP-based Multimedia Subsystem. References. 3 Voice over Internet Protocol. 3.1 Requirements. 3.2 Media Session. 3.3 Signalling Protocols for VoIP. 3.4 VoIP Session Setup in the IMS. References. 4 Models for Performance Analysis in Wireless Networks. 4.1 Introduction. 4.2 Analytical Model for Random Error Process. 4.3 Analytical Model for Correlated Error Process. References. 5 Impact of Security on Real-time Services: Link Layer Authentication Delay in WLAN 802.11b. 5.1 Introduction. 5.2 Security Properties. 5.3 Cryptographic Primitives. 5.4 WLAN 802.11b Security. 5.5 Security Analysis of Link Layer Authentication Protocols. 5.6 Link Layer Authentication Delay Analysis. 5.7 Evaluation of Link Layer Authentication Delay. 5.8 Concluding remarks. References. 6 Impact of Signalling on Real-time Services: SIP Session Setup Delay. 6.1 Introduction. 6.2 SIP Reliability Mechanisms. 6.3 Session Setup Delay. 6.4 Evaluation of SIP Session Setup Delay over Random Error Channels. 6.5 Evaluation of SIP Session Setup Delay over Correlated Fading Channels. 6.6 Optimization of SIP Session Setup Delay. 6.7 Concluding remarks. References. 7 Impact of Mobility on Real-time Services: Handover Delay. 7.1 Introduction. 7.2 Network Layer Mobility Protocols. 7.3 Reliability Mechanisms for Mobile IP-based Protocols. 7.4 Analysis and Optimization of Handover Delay for MIP-based Protocols. 7.5 Results of Handover Delay. 7.6 Concluding remarks.References. 8 Coupling Mobility and Security. 8.1 Introduction. 8.2 Mobile IPv6 Security. 8.3 Leakage-Resilient Authenticated Key Establishment Protocol based on RSA. 8.4 Leakage-Resilient Security Architecture proposal for MIPv6. 8.5 Analysis of Handover Delay for Proposed Architecture. 8.6 Security Analysis. 8.7 Results for Handover Delay. 8.8 Concluding remarks. References. 9 Towards Quality of Experience and Future Perspectives. 9.1 Towards Quality of Experience. 9.2 Future Perspectives. References. Index.

O autorze

Hanane Fathi received her M.S. in Electrical Engineering and her Ph.D. in Wireless Communications Engineering from Aalborg University, Denmark, in 2002 and 2006 respectively. She also holds a M. S. in Information Technology from Ecole Centrale d'Electronique, Paris, France. She visited Imai laboratory at the University of Tokyo, Japan, from October 2004 to March 2005. From 2006 to 2008, she worked as a research scientist at the Research Center for Information Security (RCIS) at the National Institute of Advanced Industrial Science and Technology (AIST), Japan. Currently, she is a assistant research Professor at Aalborg University, Denmark. Her research interests include network security, wireless communications security, anonymous communication, privacy and network coding.

Shyam Chakraborty is Reader in wireless technology at University of Ulster and located at the Magee Campus. He received his M. Tech. from IIT Delhi and Licenciate and Doctor of Technology degrees from Helsinki University of Technology. He was the recipient of Academy Research Fellowship of academy of Finland (2000-2004). He was also with Ericsson Corporate Research (2005-2007). His research interests are architecture of IP based wireless networks; modelling and analysis of protocols; reliable and secure communications; VoIP and IMS over wireless systems etc.

Prof. Ramjee Prasad is editor-in-chief of the Wireless Personal Communications journal and he has published over 20 academic books in the field of Wireless Communications. He was series advisor with Artech House though now publishes his books for Springer and also Wiley.

Blurb

The convergence of different types of traffic has preceded the convergence of systems and services in a wireless heterogeneous network. Voice and data traffic are usually treated separately in both 2G and 2.5G wireless networks. With advances in packet switching technology and especially with the deployment of wireless heterogeneous systems, both speech and data traffic are carried over wireless links by the same IP-based packet-switched infrastructure. However, this combination faces some challenges due to the inherent properties of the wireless network. The requirements for good quality VoIP communications are difficult to achieve in a time-varying environment due to channel errors and traffic congestion and across different systems. The provision of VoIP in wireless heterogeneous networks requires a set of time-efficient control mechanisms to support a VoIP session with acceptable quality. The focus of Voice over IP in Wireless Heterogeneous Networks is on mechanisms that affect the VoIP user satisfaction while not explicitly involved in the media session. This relates to the extra delays introduced by the security and the signaling protocols used to set up an authorized VoIP session and to the disruption caused by the user mobility during the session. Voice over IP in Wireless Heterogeneous Networks thus investigates and proposes cross-layer techniques for realizing time-efficient control mechanisms for VoIP: signaling, mobility and security.