期刊名称：International Journal of Intelligent Control and Systems
印刷版ISSN：0218-7965
出版年度：2005
卷号：10
期号：1
页码：43-51
出版社：Westing Publishing Co., Fremont
摘要：How to provide high throughput performance is a majorchallenge in the design of MAC protocol for next generation wirelesslocal area networks (WLANs) and wireless personal area networks(WPANs). To achieve this goal, frame-burst-based CSMA/CA protocolshave been proposed recently in both academia and industry. The mainidea of the frame-burst-based protocol is to aggregate multiple upper-layer packets into a larger burst frame at the MAC layer; thus the MAClayer overhead can be substantially reduced. In our previous studies, wehave demonstrated analytically that the frame-burst-based protocol cansignificantly improve the throughput performance of CSMA/CA protocolin the error-free channel condition. Since wireless channels are generallyerror-prone in practice, it is very important to study the performanceof MAC protocols under such condition. In this paper, we addressthis issue and develop an analytical model to evaluate the unsaturatedthroughput performance of the frame-burst-based CSMA/CA protocol inimperfect wireless channel. Numerical results show that, our analyticalmodel is highly accurate. More importantly, our results reveal that,given the traffic load and the bit error rate (BER) of channel, the bestthroughput performance can be achieved through appropriate setting ofburst aggregation policy
