1 research outputs found

    Call admission control for adaptive bit-rate VoIP over 802.11 WLAN.

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    Cui, Yuanyuan.Thesis (M.Phil.)--Chinese University of Hong Kong, 2009.Includes bibliographical references (p. 64-68).Abstract also in Chinese.Chapter Chapter 1 --- Introduction --- p.1Chapter 1 .1 --- Motivations and Contributions --- p.1Chapter 1.2 --- Related Works --- p.3Chapter 1.3 --- Organization of the Thesis --- p.4Chapter Chapter 2 --- Background --- p.5Chapter 2.1 --- IEEE 802.11 --- p.5Chapter 2.1.1 --- IEEE 802.11 Topologies --- p.5Chapter 2.1.2 --- IEEE 802.11 MAC --- p.8Chapter 2.2 --- Voice over Internet Protocol (VoIP) --- p.11Chapter 2.2.1 --- A VoIP system --- p.11Chapter 2.2.2 --- QoS requirements for VoIP --- p.11Chapter 2.2.3 --- VoIP speech codecs --- p.12Chapter 2.3 --- VoIP over WLAN --- p.13Chapter 2.3.1 --- System Architecture of VoIP over WLAN --- p.14Chapter 2.3.2 --- VoIP Capacity over WLAN --- p.15Chapter 2.4 --- Skype --- p.16Chapter Chapter 3 --- Skype Rate Adaptation Mechanism --- p.17Chapter 3.1 --- Experimental Setting --- p.17Chapter 3.2 --- Overview --- p.19Chapter 3.3 --- Flow Rate Region --- p.20Chapter 3.4 --- Feedback: Receiver Report (RR) --- p.21Chapter 3.5 --- Bandwidth Usage Target (BM) --- p.24Chapter 3.6 --- Summary of Skype Rate Adaptation Mechanism --- p.28Chapter 3.7 --- Skype-emulating Traffic Generator --- p.28Chapter Chapter 4 --- "Call Admission, Fairness and Stability Control" --- p.32Chapter 4.1 --- Unfair and Instability problems for AVoIP --- p.32Chapter 4.1.1 --- Analysis --- p.32Chapter 4.1.2 --- Simulation Evaluation --- p.34Chapter 4.2 --- CFSC scheme --- p.37Chapter 4.2.1 --- Pre-admission Bandwidth-reallocation Call Admission Control (PBCAC) --- p.39Chapter 4.2.2 --- Fairness Control --- p.42Chapter 4.2.3 --- Stability Control --- p.43Chapter Chapter 5 --- Performance Evaluation of CFSC --- p.44Chapter 5.1 --- Evaluation of Fairness Control --- p.44Chapter 5.2 --- Evaluation of Stability Control --- p.46Chapter 5.3 --- Evaluation of PBCAC --- p.46Chapter 5.4 --- Evaluation of complete CFSC --- p.49Chapter Chapter 6 --- Conclusion --- p.51Appendices --- p.53References --- p.6
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