Estimation of continuous flat fading MIMO channels

被引：99
作者：
Sun, QF [1 ]
Cox, DC
Huang, HC
Lozano, A
机构：
[1] Atheros Commun, Sunnyvale, CA 94085 USA
[2] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA
[3] Lucent Bell Labs, Crawford Hill, NJ 07733 USA
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2002年 / 1卷 / 04期
关键词：
Bell Labs layered space-time; channel estimation; continuous fading; multiple-input-multiple-output; optimal training parameters; training;
D O I：
10.1109/TWC.2002.804178
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：
Multiple-input-multiple-output (MIMO) systems can provide high data rate wireless services in a rich scattering environment. In this paper, we study one of the proposals for MIMO systems, the Bell Labs Layered Space-Time (BLAST) architecture. Channel estimation using training sequences is required for coherent detection in BLAST. We apply the maximum-likelihood channel estimator and the optimal training sequences for block flat fading channels to continuous flat fading channels and analyze the estimation error. The optimal training length and training interval that maximize the throughput for a given target bit error-rate are found by computer simulations as functions of the Doppler frequency and the number of antennas.
引用
收藏
页码：549 / 553
页数：5
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