MIMO precoders using spatial and path correlations for multipath fading channels

被引：0
|
作者：
Bahrami, Hamid Reza [1 ]
Le-Ngoc, Tho [1 ]
机构：
[1] McGill Univ, Dept ECE, Montreal, PQ H3A 2A7, Canada
来源：
2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14 | 2007年
关键词：
MIMO channel; frequency-selective; spatial correlation; path correlation; precoder;
D O I：
10.1109/ICC.2007.718
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：
This paper presents MIMO precoder designs for frequency-selective channels based on the transmit, receive and channel path correlation matrices. Optimal linear precoder structures are derived based on ergodic capacity criterion for three different scenarios: uncorrelated channel paths but equal spatial correlation matrices, uncorrelated channel paths but unequal spatial correlation matrices, and correlated channel paths. For channels with uncorrelated paths, the precoding structure is composed of a number of parallel precoders designed for frequency-flat fading channels. Simulation results show that the proposed precoders outperform others based only on spatial correlation in various propagation scenarios. Their achievable capacity is better in highly correlated (either spatial or path correlation) environments.
引用
收藏
页码：4351 / 4356
页数：6
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