摘要
差错性能、吞吐量一直是无线通信追求的关键参数,协同通信可以在终端不安装多天线的基础上获得近似MI-MO(Multiple Input Multiple Output)技术的协同分集增益,提高系统性能或吞吐量。能效性是无线传感网中的关键参数,将协同通信应用在基于分簇的无线传感器网络(WSN)中,可以提高整个网络的能效性,以达到节省能量、延长整个网络寿命的目标。介绍了协同通信在无线传感器网络的结合应用方案,对这种结合的能效性能的最新研究给出了分析介绍,最后总结了研究的关键问题以及未来的发展趋势和研究方向。
Performance and throughput is the crucial target in wireless communications. Cooperative communications can achieve the same diversity gain with Multi - Input Multi - Output （MIMO） scheme without being fixed multi - antennas Energy -efficiency is the most important parameter of Wireless Sensor Networks （WSN）. Applying cooperative communications in WSN can enhance energy -efficiency of WSN,which will prolong the lifetime of the whole networks. In the paper, we introduce the application scheme of cooperative communication in WSN and analyze energy- efficiency of the scheme. Finally, the crucial problems of this research are summarized,and the fufure research strategies and trends.
出处
《现代电子技术》
2007年第15期25-28,共4页
Modern Electronics Technique
关键词
无线传感器网络
协同通信
能效性
网络寿命
wireless sensor networks
cooperative communication
energy - efficiency
lifetime of networks
