Proposal methods for performance analysis of WBANs based on CSMA/CA

Abstract

There have been burning issues on Wireless Body Area Networks (WBANs) in which performance analysis for media access layer (MAC) protocol is essential and has been discussed in many literatures. By using Markov chain model, saturation and non-saturation conditions, many works can calculate access probability and throughput of system. However, previous works usually assumed that channel is ideal and with both saturation and non-saturation conditions effect of remained packets, which were transmitted unsuccessfully due to collision or busy channel, was not considered adequately. The target of this paper is to evaluate system performance more accurately and flexibly, considering channel is non-ideal, taking into account the remained packets and using statistical mathematics instead of saturation and non-saturation condition and then to optimize parameters to achieve higher performance.