一种考虑休眠模式的IEEE 802.15.4 MAC协议Markov分析模型  

A Markov-Based Analytical Model for IEEE 802.15.4 MAC Considering Sleep Mode

作　　者：高博[1] 何晨[1] 蒋铃鸽[1] 

机构地区：[1]上海交通大学电子工程系,上海200240

出　　处：《上海交通大学学报》2009年第6期918-922,共5页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金项目(60772100;60872017;60832009);富士通研究开发有限公司资助项目

摘　　要：为了有效描述启用休眠模式的IEEE 802.15.4 MAC协议,提出一种考虑休眠模式的IEEE 802.15.4时隙CSMA/CA算法Markov分析模型.分析了协议参数对吞吐量和功率消耗的影响,其中特别考虑了占空比和非饱和负载的影响.并且讨论了模型参数数值结果.结果表明,分析模型给出的理论分析结果与仿真结果较吻合,且该模型可用于描述休眠模式对IEEE 802.15.4协议性能所产生的影响.To describe the IEEE 802. 15. 4 MAC with sleep mode effectively, a Markov-based analytical model for IEEE 802.15.4 slotted CSMA/CA algorithm considering sleep mode was proposed. The impacts of protocol parameters, especially the duty cycle and unsaturated traffic, on throughput and power consumption were analyzed. Moreover, some discussion based on the numerical results of the model was carried out. It is showed that the results given by the analytical model have an accurate match with the simulations, and the impact of the sleep mode on the performance of IEEE 802.15.4 can be studied by the model well.

关 键 词：传感器网络 介质接入控制 休眠模式 Markov分析模型 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]