| The desire to provide universal connectivity for mobile computers and communication devices is fueling a growing interest in wireless packet networks. This growing interest in wireless systems and networks has led to the first Wireless LAN (WLAN) protocols. The Medium Access Control (MAC) layer protocols of such protocol suites are of key importance. To satisfy the needs of wireless data networking, study group 802.11 was formed under IEEE project 802 to recommend an international standard for Wireless Local Area Networks (WLANs), while the Radio Equipment and Systems (RES) Technical Committee of the European Telecommunications Standards Institute has proposed the High PErformance Radio LAN (HIPERLAN) protocol suite.; In WLAN's, the phenomena of capture and hidden nodes have a strong effect on protocol performance and make necessary for analytical models that take them in account. Given the growing popularity of real-time services and multimedia based applications it is critical that both MAC protocols, HIPERLAN and 802.11 be tailored to meet their requirements.; This thesis analyzes the above protocols for asynchronous and real-time traffic, proposes techniques for resource allocation and call admission/rejection for specific quality of service requirements and also proposes appropriate modifications where necessary. |
