Analysis of Minimum Decoding Complexity Quasi-Orthogonal Space-Time Block Code for 6 Transmit Antennas

Abstract:

Previous work on quasi-orthogonal space-time block code (QO-STBC) has been designed to achieve full rate and full diversity gain for four antennas. However this conventional QO-STBC scheme decoding is complex. For achieving more diversity gains, an extended QO-STBC scheme is provided to achieve full diversity with one rate for six antennas. Furthermore, by transforming the detection matrix to an orthogonal one, this novel scheme can achieve a simple linear decoding. Therefore it proposes an extended minimum decoding complexity QO-STBC (MDC-QO-STBC) for six antennas. Due to eliminate the interference from different equivalent channels, the novel extended MDC-QO-STBC scheme improves transmission reliability and linear decoding complex compared with the conventional QO-STBC scheme. At last extensive simulation results are presented to prove the theoretical analysis.

• Periodical: Advanced Materials Research (Volumes 694-697)
• Pages: 2568-2571
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.694-697.2568
• Online since: May 2013
• Authors: Mang Liao, Meng Xing Wang, Ling Xu Jin
• Keywords: Diversity Gain, Inter-Symbol Information (ISI), Minimum Decoding Complexity (MDC), Quasi-Orthogonal Space-Time Block Code (QO-STBC)

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