Differential unitary space-time-frequency coding for MIMO OFDM systems

被引：0

作者：

Wang, JB ^{[1
]}

Yao, K ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA

来源：

THIRTY-SIXTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS - CONFERENCE RECORD, VOLS 1 AND 2, CONFERENCE RECORD | 2002年

关键词：

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Incorporating subcarrier grouping and differential unitary space-time modulation, we develop a differential unitary space-time frequency (DUSTF) coding scheme for MIMO OFDM systems over frequency selective fading channels. We derive the design criteria for the DUSTF codes to maximize diversity advantage and coding advantage. We adopt Abelian group codes and show that for DUSTF coded MIMO OFDM systems with M-T transmit antennas and L resolvable multipaths in the channel, the optimal Abelian group in the sense of maximizing the coding advantage is actually the optimal Abelian group for a flat fading channel with MTL transmit antennas with the same rate. Simulation results are given to show the merits of the proposed scheme.

引用

页码：1867 / 1871

页数：5

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