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A High-Rate Space-Time Block Code with Full Diversity
Zhenzhen GAO Shihua ZHU Zhimeng ZHONG
IEICE TRANSACTIONS on Communications
Publication Date: 2008/07/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
multi-input multi-output system, space-time block code, two-group ML decodable code,
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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.