基于空时分组码的无线传感网协同传输系统的节能方法  

Energy Efficiency of STBC-Encoded Cooperative Transmission System in Wireless Sensor Networks

作　　者：俞杰[1] 陈惠民[1] 金彦亮[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《上海大学学报（自然科学版）》2007年第6期696-698,共3页Journal of Shanghai University:Natural Science Edition

基　　金：上海市科委重大项目子课题资助项目(05dz15004);上海市重点学科建设资助项目(T0102)

摘　　要：研究了基于空时分组码的无线传感网协同传输系统节能传输的方法,提出了无线传感网单传输系统和基于空时分组码的协同传输系统性能的比较准则.针对无线传感器网络能源受限的特点,计算协同传输系统最优发射功率的门限电平.仿真结果表明,该门限电平在满足系统一定中断概率的条件下可以使无线传感器网络总传输功率达到最小.STBC-encoded cooperative transmission system in wireless sensor networks and its energy efficiency are investigated. A criterion for single transmission is proposed. energy-limited wireless sensor transmitted power can minimize performance comparison between STBC-encoded cooperative transmission and The threshold of transmit power in cooperative transmission is calculated for networks. Simulation results demonstrate that the proposed threshold the overall network transmission power with a certain outage probability.

关 键 词：无线传感器网络 协同传输 空时分组编码 中断概率 

分 类 号：TN915[电子电信—通信与信息系统]