Adaptive modulation and coding for V-BLAST systems

被引：0
|
作者：
Lu, Guoquan [1 ]
Wang, He [1 ]
Yang, Dacheng [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Wireless Theories & Technol Lab, Beijing 100088, Peoples R China
来源：
2007 IEEE 18TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-9 | 2007年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
There have been great efforts to study the adaptive MIMO systems, while all of them concentrate on the systems without channel coding. This paper presents a new adaptive V-BLAST scheme adopting turbo-codes as the channel coding. Through a two-step method, we derive two algorithms for fixed rate and variable rate applications respectively. We derive a close-form bit and power allocation algorithm which reduces the computation complexity greatly by avoiding exhaustive search. For adaptive coding, we propose the Average SNR mapping method to select the proper coding scheme. Simulation results show that the algorithms for fixed rate and variable rate both provide very good throughput performance with low complexity and less feedback information.
引用
收藏
页码：115 / 119
页数：5
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