WSN相干协作路由的能量有效性研究  

Research on Energy Efficiency for Coherent Cooperative Routing in Wireless Sensor Networks

作　　者：张霞[1] 于宏毅[1] 杨白薇[1] 

机构地区：[1]解放军信息工程大学信息工程学院通信工程系,郑州450002

出　　处：《计算机工程》2009年第12期14-16,共3页Computer Engineering

基　　金：国家自然科学基金资助项目(60472064);河南省自然科学基金资助项目(05ZR23069)

摘　　要：为在相干协作路由中构建消息交互模型,分析协作路由的能量有效性问题,通过实验发现,在目前的节点功耗参数下,近距离传输时协作增加的电路能耗超过协作节省的传输能量,即协作相对于非协作并不节能,而远距离传输时,在给定信道测量周期和测量分组长度前提下,业务分组长度越长、到达间隔越短、协作节能效果越佳。In order to set up message exchange model in coherent cooperative routing, the problem of energy efficiency for cooperative routing is analyzed. Through the experiment, some facts are discovered, and the conculsion is： cooperative routing isn＇t as energy efficient as non-cooperative routing when the transmission distance is small because the extra circuit energy consumption exceeds cooperative energy savings, on the other hand, for long range transmission, when the channel evaluation period and packet length are given, the longer data packets and shorter interval, the more energy efficient cooperative routing is.

关 键 词：无线传感器网络 相干协作 能量有效性 协作开销 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]