基于协作分集技术的无线传感器网络传输性能  

Transmission capacity of wireless sensor networks based on cooperative diversity

作　　者：胡锦丽[1] 余根坚 HU Jin-Li YU Gen-Jian(Fujian Polytechnic of Information Technology, Fuzhou 350003, China Fujian Provincial Key Laboratory of Information Processing and Intelligent Control, Fuzhou 350121,China)

机构地区：[1]福建信息职业技术学院,福州350003 [2]福建省信息处理与智能控制重点实验室,福州350121

出　　处：《四川大学学报（自然科学版）》2016年第6期1261-1268,共8页Journal of Sichuan University(Natural Science Edition)

基　　金：国家自然科学基金项目(61401223);"十二五"国家科技支撑计划项目(2012BAF12B15);福建省高等学校教学改革研究项目(JAS14837);福建省中青年教师教育科研项目(JA14249)

摘　　要：对基于协作分集技术的传感器网络传输性能问题进行了深入研究,建立了多信源、多信宿和多中继的传感器网络协作分集模型,推导出了在该模型下传感器网络的传输性能具体表达式,据此可以定量地计算在协作分集下多信源、多信宿和多中继的传感器网络的传输性能指标,为进一步讨论协作选择策略等技术方案在实际的无线传感器网络环境中的应用提供理论上的判断依据.另一方面,本文也从理论上证明了协作分集技术可以提高传感器网络的传输性能.最后利用仿真参数,给出了主要的几个仿真结果,其反应出来的协作通信下的无线传感器网络传输性能变化特点与本文的结论相吻合.This paper study the transmission capacity of wireless sensor networks based on the coopera- tive diversity technology. At first, the paper establish the cooperative diversity model for multi-source, multi-sink and multi-relay sensor networks, on which the specific transmission capacity expression of wireless sensor networks is deduced, it not only prove that the transmission capacity of wireless sensor networks will be increased by the cooperative diversity technology, but also give the criterion for discus- sing further the application effect of the technical scheme such as the cooperative selection strategy and so on in actual wireless sensor networks. In the other hand, the paper theoretically prove that coopera- tive diversity can improve the transmission capacity of wireless sensor networks. At last, some simula- tions are given and validity of the results is testified by the simulations.

关 键 词：无线传感器网络 协作分集技术 传输性能 仿真 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]