Space-time turbo coded modulation: Design and applications

被引：15
|
作者：
Tujkovic, D [1 ]
Juntti, M [1 ]
Latva-aho, M [1 ]
机构：
[1] Univ Oulu, Ctr Wireless Commun, FIN-90014 Oulu, Finland
来源：
EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING | 2002年 / 2002卷 / 03期
关键词：
space-time coding; turbo coded modulation; OFDM modulation;
D O I：
10.1155/S1110865702000641
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：
A design method for recursive space-time trellis codes and parallel-concatenated space-time turbo coded modulation is proposed that can be applied to an arbitrary existing space-time trellis code. The method enables a large, systematic increase in coding gain while preserving the maximum transmit diversity gain and bandwidth efficiency property of the considered space-time trellis code. Applying the above method to Tarokh et al. space-time trellis codes, significant performance improvements can be obtained even with extremely short input information frames. The application of space-time turbo coded modulation to the space-frequency domain is also proposed in this paper. Exploiting the bandwidth efficient orthogonal frequency division modulation (OFDM), multiple transmit antennas and large frequency selectivity offered by typical low mobility indoor environments, the proposed space-frequency turbo coded modulation performs within 2.5 dB of the outage capacity for a variety of practical wideband multiple-input multiple-output (MIMO) radio channels.
引用
收藏
页码：236 / 248
页数：13
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