A MAC Protocol with CAC Algorithm for Wireless Networks

Wireless communications has become ubiquitous these days. With the advent of multimedia applications, there is a need for higher bandwidth and faster data rates. A Medium Access Control (MAC) protocol is required for effective utilization of network resources and to transmit multimedia traffic classes with quality of service requirements. In the proposed Dynamic MAC protocol under low load conditions users can access any slots and in high load conditions the owners of the slots have priority to access slots. If the owners are not having any data to transmit the non-owners can access slots. Adaptive Call Admission Control algorithm for multimedia traffic is used to control congestion, which in turn reduces the blocking probability and hence maximizes system capacity. The performance of the proposed protocol is evaluated based on Throughput, Call blocking probability, Capacity.