VoIP capacity over multiple IEEE 802.11 WLANs.

Chan, An.Thesis (M.Phil.)--Chinese University of Hong Kong, 2007.Includes bibliographical references (leaves 80-84).Abstracts in Chinese and English.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 --- Basic IEEE 802.11 Standards --- p.5Chapter 2.1.2 --- Types of Networks --- p.7Chapter 2.2 --- Voice over IP (VoIP) Codecs --- p.8Chapter 2.3 --- VoIP over WLAN --- p.9Chapter 2.3.1 --- System Architecture of VoIP over WLAN --- p.9Chapter 2.3.2 --- VoIP Capacity over an Isolated WLAN --- p.10Chapter Chapter 3 --- VoIP Capacity over Multiple WLANs --- p.12Chapter 3.1 --- Topology Settings and Assumptions --- p.12Chapter 3.2 --- Low VoIP Capacity Found in NS2 Simulations --- p.16Chapter 3.3 --- Applying Frequency Channel Assignment --- p.18Chapter Chapter 4 --- Clique Analysis and Call Admission Control --- p.21Chapter 4.1 --- Conflict Graph Model and Cliques --- p.21Chapter 4.2 --- Cliques in Multi-Cell WLANs --- p.22Chapter 4.3 --- Clique-Based Call Admission Control Algorithm --- p.24Chapter 4.3.1 --- Algorithm Description --- p.24Chapter 4.3.2 --- Algorithm Performance Evaluation --- p.27Chapter 4.3.3 --- Clique-Based Admission Control in Three-Frequency- Channel WLAN --- p.29Chapter Chapter 5 --- Time Division Multiple Access (TDMA) on IEEE 802.11MAC --- p.32Chapter 5.1 --- Coarse-Grained Time-Division Multiple Access (CTDMA) --- p.33Chapter 5.1.1 --- Basic Ideas of CTDMA --- p.33Chapter 5.1.2 --- Conflict Graph Modeling of CTDMA --- p.35Chapter 5.1.3 --- Parameter Values in CTDMA --- p.41Chapter 5.2 --- Possible Realization of TDMA on 802.11 Standards --- p.47Chapter Chapter 6 --- Coloring Problem in Wireless Networks: A Theoretical Treatment --- p.52Chapter 6.1 --- Coloring of One-Dimensional Linear Network --- p.53Chapter 6.1.1 --- Network with Same Link Length --- p.53Chapter 6.1.2 --- Network with Variable Link Length --- p.54Chapter 6.2 --- Coloring of Two-Dimensional Network --- p.63Chapter Chapter 7 --- Conclusion --- p.66Appendices --- p.69References --- p.8