Cross-layer Communication Power Allocation for Distributed Detection in Wireless Sensor Network
For wireless sensor network specialized in distributed detection application, communication power of each sensor should dedicate to improve the total detection performance of the system and its utilization should be energy efficient. There is a balance point for communication power. Above the point, it is difficult to improve the system’s detection performance. Below it, it is easy to improve system’s detection performance by increasing the communication power of sensor node. Therefore, a method was given to guide the seeking of the balance point. Specifically, the objective is to determine the balance point according to the variations of global probability of detection versus channel SNR and allocate the communication power of each node according to the point. Numerical simulation shows that the method is practical and feasible.
power allocation cross-layer design distributed detection wireless sensor network Rayleigh-fading channel
Xiangyang LIU Wenbin BAI Xiaoying CHENG Jin PAN
First department, Xian Communications Institute, Xian Shaanxi, China, 710106
国际会议
北京
英文
85-89
2011-11-27（万方平台首次上网日期，不代表论文的发表时间）