Queueing analysis of DCHF and token-passing MAC protocols with varying turnaround time
Mercy Eben Newton Balakrishnan, Eric E. Johnson · 2004
Wireless Networks are generally characterized by a me· dium shared among a group of users. This makes an ap propriate Media Access eo,lJro! (MAC) protocol essential for efficient channel utilization. Wireless MAC protocols show significant performance degradation in some chal· lenging networks (e.g., military HF radio) that are char· acterized by long link·layer turnaround times, and most of the recent research does not address this problem. This paper develops queueing models for two functional cate· gories of wireless MAC protocols; DCHF, a contention· based MAC protocol and Token·passing, a contention· free MAC protocol, and explores their statistical per· formance for varying link-layer turnaround times under varying Poisson loads. Simulation models for these proto-cols have been developed to substantiate the statistical analysis.