摘要
对于无线通信系统来说,特别是单天线节点无线通信系统,采用协作通信技术可以有效地提高系统性能。其中,协作节点选择及协作策略是协作通信需要考虑的两个基本问题。以容量最大化为目标,基于DF中继模式,本文研究了协作节点选择及功率分配策略问题,结果表明,当协作节点满足一定条件时并采用合理的功率分配策略可有效提高系统容量。
For wireless communication systems, especially for single antenna node wireless communication systems, cooperative communication techniques can improve system performance effectively. Selection of cooperative node and cooperative scheme are two basic problems for cooperative communication. For the goal of capacity maximum, based on DF, the problems including selection of cooperative node and power allocation scheme are researched this paper, results show that when certain conditions are satisfied and reasonable power allocation scheme is adopted system capacity can be improved availably.
出处
《计算机科学》
CSCD
北大核心
2007年第6期64-67,共4页
Computer Science
基金
国家自然科学基金(No.60472064)。
关键词
DF
容量最大化
节点选择
功率分配
Decode and forward, Capacity maximum, Node selection, Power allocation
