Time-frequency double differential space-time coding for MIMO-OFDM systems

被引：0

作者：

Tian, JF ^{[1
]}

Luo, HW ^{[1
]}

Song, WT ^{[1
]}

Yu, HB ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200030, Peoples R China

来源：

VTC2004-SPRING: 2004 IEEE 59TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, PROCEEDINGS | 2004年

关键词：

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Differential space-time modulation has been proposed recently in the literature for multiple-antenna systems over Rayleigh fading channels, where neither the transmitter nor the receiver knows the fading coefficients. Among existing schemes, double differential space-time (DDST) coding is of special interest because it is applicable to continuous fast time varying channels. However the performance of DDST degrades considerably in frequency-selective channels. In this paper, a novel time-frequency double differential space-time coding scheme is proposed for multi-antenna orthogonal frequency division multiplexing (OFDM) system, which is robust for time-varying frequency-selective Rayleigh fading channels. The new coding scheme adopts the double differential coding method in both time and frequency domains. A corresponding suboptimal yet low-complexity non-coherent detection approach is also proposed. System performance is evaluated with simulations.

引用

页码：757 / 760

页数：4

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