一种自适应功率优化的无线传感器网络机会路由  

A self-adaptive power optimized opportunistic routing for wireless sensor network

作　　者：岳林[1] 易本顺[1] 肖进胜[1] 方彦军[2] 

机构地区：[1]武汉大学电子信息学院,武汉430079 [2]武汉大学动力与机械学院,武汉430079

出　　处：《沈阳工业大学学报》2011年第4期416-421,444,共7页Journal of Shenyang University of Technology

基　　金：国家自然科学基金资助项目(60772107)

摘　　要：为了解决无线传感器网络不可靠通信链路下通信能效较低的问题,提出了一种自适应功率优化的无线传感器网络地理信息机会路由协议.结合功率控制与地理信息机会路由,通过分析单跳吞吐量与数据传输能耗,建立了相关的转发能效模型,提出一种转发集与发射功率自适应的优化机制,使无线传感器网络能够在保证吞吐量的同时令传输能耗最优.仿真实验结果表明,在不同节点密度条件下,自适应功率优化的机会路由比固定功率的机会路由和传统地理信息路由具有更高的能量效率与传输效率.In order to solve such problem as the low communication energy efficiency of wireless sensor network under unreliable communication links, a self-adaptive power optimized geographic opportunistic routing protocol for wireless sensor network was proposed. In combination with the power control and geographic opportunistic routing, a relative forwarding energy efficiency model was established through analyzing single-hop throughput and data transmission energy consumption. An optimized mechanism with self-adaptation between forwarding set and transmission power was proposed to achieve the optimum transmission energy consumption of wireless sensor network and ensure the throughput at the same time. The simulation results show that with variable node density, the self-adaptive power optimized opportunistic routing has higher energy and transmission efficiency than both power fixed opportunistic routing and traditional geographic routing.

关 键 词：无线传感器网络 机会路由 地理信息路由 功率控制 自适应 能效 吞吐量 优化 

分 类 号：TN915[电子电信—通信与信息系统]