FULL-RATE AND LOW-COMPLEXITY SPACE-TIME BLOCK CODING CONCATENATED WITH CHANNEL CODES

Xiangbin Yu () and Guangguo Bi
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Xiangbin Yu: College of Information Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China
Guangguo Bi: National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, People's Republic of China

International Journal of Information Technology & Decision Making (IJITDM), 2007, vol. 06, issue 01, 5-14

Abstract: Space-time block (STB) coding has been an effective transmit diversity technique for combating fading recently. In this paper, a full-rate and low-complexity STB coding scheme with complex orthogonal design for multiple antennas is proposed, and turbo code is employed as channel coding to improve the proposed code scheme performance further. Compared with full-diversity multiple antennas STB coding schemes, the proposed scheme can implement full data rate, partial diversity and a smaller complexity, and has more spatial redundancy information. Moreover, using the proposed scheme can form efficient spatial interleaving, thus performance loss due to partial diversity is effectively compensated by the concatenation of turbo coding. Simulation results show that on the condition of the same system throughput and concatenation of turbo code, the proposed scheme has lower bit error rate (BER) than those low-rate and full-diversity multiple antennas STB coding schemes.

Keywords: Space-time block coding; full rate; low complexity; turbo code; transmit diversity; multiple antennas (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1142/S0219622007002381

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