协作通信中的发射功率分配  

Transmission Power Allocation in Cooperative Communication

作　　者：尹露娟[1] 苑津莎[1] 陈智雄[1] 

机构地区：[1]华北电力大学电气与电子工程学院,河北保定071003

出　　处：《电力科学与工程》2009年第9期45-47,共3页Electric Power Science and Engineering

摘　　要：对于无线通信系统来说,特别是对单天线节点的无线通信系统,采用协作通信技术可以有效地提高系统性能。发射功率的分配会影响系统的性能,故合理分配源节点与目的节点的功率将提高功率的利用率。基于简单的三点DF中继协作模式,研究了源节点与中继节点的功率分配问题。The use of cooperative communications technology can effectively improve performance of the wireless communication systems, particularly the systems that own single-antenna nodes. The allocation of the transmission power will affect the performance of the system, so rational distribution of the power between the source node and the relay node will improve the utilization of power. In this paper, the problem of power distribution between source and relay based on the instantaneous channel information was studied. Study results showed that, our power allocation strategy can improve the utilization of power for entire system.

关 键 词：协作通信 功率分配 DF 瞬时信道信息 

分 类 号：TN92[电子电信—通信与信息系统] TN929.533[电子电信—信息与通信工程]