摘要
在无线资源日益紧缺和信道条件日益恶化的背景下,通过动态资源分配可以获得较高的频谱利用率和更高的QoS保证,以适应未来无线宽带业务的发展。首先介绍了链路自适应和多用户分集,在此基础上重点研究了在不同优化目标下单天线OFDM与多天线OFDM的资源分配算法,并对其优缺点进行了分析,最后展望了动态资源分配的发展趋势。
To satisfy the request of wireless wideband service in the future, dynamic multi- users resource allocation achieves both higher system spectral efficiency and better QoS,in the condition that wireless resource is more and more limited and channel is getting worse. In the paper, link adaptation and multi - users diversity are introduced, then a various kind of methods are studied according to targets and advantages and disadvantages are analyzed. Finally, the trend of resource allocation is given.
出处
《现代电子技术》
2009年第7期7-10,共4页
Modern Electronics Technique
基金
河南省创新人才培养对象
国家自然科学基金资助项目(60702020)
河南省杰出青年基金资助项目(512000400)
