PRMA/DA: a new media access control protocol for wireless ATM

We propose a media access control (MAC) protocol for wireless local area networks (LANs) that is capable of supporting various types of traffic demands, such as constant bit rate (CBR) voice, variable bit-rate (VBR) video, and packet data. In addition, the proposed protocol provides a seamless connectivity to a broadband ATM backbone network. Our protocol, having an air interface comparable to ATM, adopts a dynamic channel allocation scheme which enables expeditious network-access and utilizes bandwidth resource efficiently. The simulation results presented show the improvements of dynamic channel allocation over the static channel allocation scheme in terms of key performance metrics such as: throughput, call blocking probability, network access delay and cell transmission delay.