TD-SCDMA HSDPA链路自适应方案性能分析  

The Performance Analysis of Link Adaptation for TD-SCDMA HSDPA System

作　　者：曾云宝[1] 王方刚[1] 朱永芬[1] 王文博[1] 

机构地区：[1]北京邮电大学电信工程学院,北京100876

出　　处：《无线电工程》2006年第12期33-34,共2页Radio Engineering

基　　金：国家863计划项目(2004AA123160)

摘　　要：仿真研究了几种切换点调整算法在TD-SCDMA HSDPA(High Speed Downlink Packet Access)系统中的性能。通过使用通用稳定的切换点调整算法,使得系统更加灵活,能够适应各种变化的信道环境,获得更加合理的MCS(Modulation andCoding Scheme)切换点,提高AMC(Adaptive Modulation Coding)算法中MCS选择的性能。仿真表明,通过使用合理的链路自适应技术能够极大地提高系统吞吐量,提高系统的自适应性能。The performance of several algorithms of adjusting switched points is investigated in TD - SCDMA HSDPA system. The system is more flexible, and can adapt to the varying channel environments, through the utilization of the general and stable algorithm. Therefore, more reasonable switched points for MCS can be obtained, and the method can improve the performance of MCS selection. Simulation results have shown that the throughput can be greatly improved, and it can improve the adaptability performance.

关 键 词：TD—SCDMA HSDPA 链路自适应 吞吐量 

分 类 号：TN929.5[电子电信—通信与信息系统]