Combined turbo coding and unitary space-time modulation

被引：49

作者：

Bahceci, I ^{[1
]}

Duman, TM ^{[1
]}

机构：

[1] Arizona State Univ, Dept Elect Engn, Ctr Telecommun Res, Tempe, AZ 85287 USA

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2002年 / 50卷 / 08期

基金：

美国国家科学基金会;

关键词：

fading channels; MIMO systems; space-time codes; turbo codes; unitary constellations;

D O I：

10.1109/TCOMM.2002.801484

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：

Space-time coding is well understood for high data rate communications over wireless channels with perfect channel state information. On the other hand, channel coding for multiple transmit antennas when channel state information is unknown has only received limited attention. Recently, a new signaling scheme, named unitary space-time modulation, has been proposed for the latter case. In this paper, we consider the use of turbo coding together with unitary space-time modulation. We demonstrate that turbo coded space-time modulation systems are well suited to wireless communication systems when there is no channel state information, in the sense that the turbo coding improves the bit error rate (BER) performance of the system considerably. In particular, we observe that the turbo-coded system provides 10-15 dB coding gain at a BER of 10(-5) compared to the unitary space-time modulation for various transmit and receive antenna diversity cases.

引用

页码：1244 / 1249

页数：6

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