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Integrating Quality of Service and Mobility Support Into Wireless Communication Networks

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Integrating Quality of Service and Mobility Support Into Wireless Communication Networks Integrating Quality of Service and Mobility Support into Wireless Communication Networks by Jonathan Chan-Lon Chan A thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy School of Electrical Engineering and Telecommunications The University of New South Wales August, 2001 U i i w ] 2 9 MAY 2002 LIBRARY CERTIFICATE OF ORIGINALITY I hereby declare that this submission is my own work and to the best of my knowledge it contains no materials previously published or written by another person, nor material which to a substantial extent has been accepted for the award of any other degree or diploma at UNSW or any other educational institution, except where due acknowledgement is made in the thesis. Any contribution made to the research by others, with whom I have worked at UNSW or elsewhere, is explicitly acknowledged in the thesis. I also declare that the intellectual content of this thesis is the product of my own work, except to the extent that assistance from others in the project’s design and conception or in style, presentation and linguistic expression is acknowledged. Acknowledgements My deep gratitude must go out to God for His guidance and love for me throughout my life, and it was such a blessing to meet so many wonderful people throughout the period of my doctoral studies. First of all, I must thank my supervisor Professor Aruna Seneviratne for his constant encouragement, insightful comments and invaluable suggestions. He has taught me what research is and how it is performed. Besides Aruna himself, my thanks should be extended to the Seneviratne’s family, who have gone through all the troubles of organising countless “Aussie BBQs” and sport events at their place. My gratitude also goes out to Dr. Terry Percival, my external supervisor, for his guidance and kindness of letting me to conduct my experimental work at CSIRO Telecommunications and Industrial Physics (TIP). I am also grateful to my fellow researchers in the MOBQOS group at UNSW (formerly at UTS) and the Telecommunication group at CSIRO TIP. Special thanks go to Bjorn Landfeldt, Sebastien Ardon, Binh Thai, Marius Portmann, Robert Hsieh, Pipat Sookavatana, Woraphon Lilakiatsakun, Ren Liu, Muneyb Minhazuddin, Glynn Rogers, Jim Argyros, John Deane, Hajime Suzuki, Graham Daniels, Carol Wilson, Jayasri Joseph and Sue Zhou for their friendship, stimulating discussions and helpful assistance during my research. Thanks also go to Dr. Arthur Hung, my brother in Christ, who encouraged me to initiate my PhD study and directed me to my thesis supervisor. I would also like to acknowledge that CSIRO TIP and the Australian Commonwealth Government have funded my research from the beginning, thus making this thesis possible. My special thanks should go to my parents, mother-in-law, brother, sister, brother- in-law, and sister-in-law for their understanding and support. iii My final acknowledgements go to my wife Vivian for her love and support. Her partnership is a special blessing for me. I am also grateful to my baby daughter Victoria, who often encourages me to wake up early in the morning to continue my work. iv Publication List 1. J. Chan, B. Landfeldt, R. Liu and A. Seneviratne, “A Home-Proxy Based Wireless Internet Framework in Supporting Mobility and Roaming of Real-Time Services,” IEICE Transactions on Communications (Special Issue on Mobile Multimedia Communications), E84-B (4), Apr. 2001. 2. J. Chan, B. Landfeldt and A. Seneviratne, “The Challenges of Provisioning Real- Time Services in Wireless Internet,” Telecommunication Journal of Australia, 50(3), Spring 2000. 3. J. Chan, B. Landfeldt, A. Seneviratne and P. Sookavatana, “Integrating Mobility Prediction and Resource Pre-allocation into a Home-Proxy Based Wireless Internet Framework,” in Proc. IEEE ICON’2000, Sep. 2000. 4. J. Chan and A. Seneviratne, “A Practical User Mobility Prediction Algorithm for Supporting Adaptive QoS in Wireless Networks,” in Proc. IEEE ICON’99, Sep. 1999. 5. S. Zhou, J. Chan, A. Seneviratne and T. Percival, “A Mobility-Enabled Hybrid Wireless Network with Standard ATM Back bone Switches: Architecture, Implementation and Performance,” in Proc. IEEE WCNC’99, Sep. 1999. 6. J. Chan, S. Zhou and A. Seneviratne, “A QoS Adaptive Mobility Prediction Scheme for Wireless Networks,” in Proc. IEEE GLOBECOM’98, Nov. 1998. 7. J. Chan, R. De Silva, S. Zhou and A. Seneviratne, “A Framework for Mobile Wireless Networks with an Adaptive QoS Capability,” in Proc. MoMuC’98, Oct. 1998. 8. J. Chan, S. Zhou and A. Seneviratne, “A Hybrid Handoff Scheme with Prediction Enhancement for Wireless ATM Network,” in Proc. APCC’97, Dec. 1997. Preface This thesis describes the research undertaken in fulfilment of the requirements for the Degree of Doctor of Philosophy, at The University of New South Wales, Australia. This work was undertaken during the period January 1997 to February 2001. “I devoted myself to study and to explore by wisdom all that is done under heaven. What a heavy burden God has laid on men!” (Ecclesiastes 1:13) vi Table of Contents Certificate of Originality.................................................................................... i Acknowledgements.............................................................................................ii Publication List.................................................................................................. iv Preface..................................................................................................................v Table of Contents............................................................................................... vi Abstract.............................................................................................................xii CHAPTER 1. Introduction......................................................................................................... 1 1.1. Major Findings in This Thesis............................................................... 4 1.2. Outline of This Thesis........................................................................... 6 CHAPTER 2. Background...................................................................................................... 10 2.1. The Evolving Network Technologies.................................................. 10 2.1.1. Circuit Switching............................................................................................. 10 2.1.2. Packet Switching.............................................................................................. 11 2.1.3. Mobile Networking.......................................................................................... 13 2.1.4. Circuit or Packet Switching?.......................................................................... 14 2.2. Asynchronous Transfer Mode............................................................ 15 2.2.1. Overview of Asynchronous Transfer Mode................................................15 2.2.2. Discussion of Asynchronous Transfer Mode Issues................................... 17 2.3. Internet Protocol....................................................................................18 2.3.1. Overview of the Internet Protocol................................................................18 2.3.2. Discussion of Internet Protocol Issues 19 vii 2.4. A Brief Comparison of the Design Philosophy behind ATM and IP Protocols.................................................................................................19 2.5. Challenges of Provisioning Multimedia Services in Mobile Wireless Networks................................................................................................21 2.6. Summary................................................................................................23 CHAPTER 3. Quality of Service Support in the Network................................................... 25 3.1. Problem Statement............................................................................... 25 3.2. ATM QoS Support with Wireless Extensions................................... 27 3.2.1. Wireless ATM........................................................................................... 27 3.2.2. QoS Control in Wireless ATM.................................................................. 29 3.2.3. Discussion of Soft QoS Issues................................................................... 29 3.3. IP Networks QoS Support.....................................................................30 3.3.1. Integrated Services (IntServ)......................................................................30 3.3.1.1. Overview of IntServ.......................................................................................... 31 3.3.1.2. Discussion of IntServ Issues............................................................................. 33 3.3.2. Differentiated Services (DiffServ)..............................................................34 3.3.2.1. Overview of DiffServ......................................................................................... 34 3.3.2.2. Discussion of DiffServ Issues............................................................................ 37 3.4. Relationship between Mobility Support and Current QoS Architecture........................................................................................... 38 3.5. Summary................................................................................................ 39 CHAPTER 4. Mobility Support in the Network.....................................................................42
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