Optimal power allocation scheme on generalized layered space-time coding systems

被引：0
|
作者：
Jason, LHC [1 ]
Tao, MX [1 ]
Cheng, RS [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Elect & Elect Engn, Kowloon, Hong Kong, Peoples R China
来源：
2001 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-10, CONFERENCE RECORD | 2001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：
We consider a generalized layered Space-Time (GLST) architecture with parallel Space-Time (ST) codes and derive an optimal power allocation (PA) scheme over the Space-Time encoders to minimize the overall frame error rate. We prove that the optimal power allocation scheme will equate the derivatives of the frame error rate functions of all the ST codes. From simulation, we show that the derived optimal power allocation has a 1-2 dB gain over equal power scheme. Also, the proposed scheme has a better performance than the power allocation scheme proposed by [2]. Since various power allocation schemes have the same receiver structure, the gain can be achieved simply using the optimized parameters with no increase in complexity.
引用
收藏
页码：1706 / 1710
页数：5
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