A High-Rate Space-Time Block Code with Full Diversity

Zhenzhen GAO; Shihua ZHU; Zhimeng ZHONG

doi:10.1093/ietcom/e91-b.7.2431

Regular Section

A High-Rate Space-Time Block Code with Full Diversity

Zhenzhen GAO, Shihua ZHU, Zhimeng ZHONG

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Keywords: multi-input multi-output system, space-time block code, two-group ML decodable code

JOURNAL RESTRICTED ACCESS

2008 Volume E91.B Issue 7 Pages 2431-2434

DOI https://doi.org/10.1093/ietcom/e91-b.7.2431

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Abstract

A new high-rate space-time block code (STBC) with full transmit diversity gain for four transmit antennas based on a generalized Alamouti code structure is proposed. The proposed code has lower Maximum Likelihood (ML) decoding complexity than the Double ABBA scheme does. Constellation rotation is used to maximize the diversity product. With the optimal rotated constellations, the proposed code significantly outperforms some known high-rate STBCs in the literature with similar complexity and the same spectral efficiency.

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