Four-Group Decodable Space-Time Block Codes

— A class of rate-one space-time block codes (STBC) allowing the decoding of transmitted symbols into four groups is recently proposed by Yuen, Guan and Tjhung. This code is called four-group decodable STBC (4Gp-STBC). In this paper, the equivalent channel of 4Gp-STBC is derived and a new method to decode 4Gp-STBC based on sphere decoders is proposed. Furthermore, the performance of 4Gp-STBC is analyzed. A New signal rotation method is proposed, which performs better than the existing one. Keywords-Space-time block codes, quasi-orthogonal, performance analysis, low decoding complexity.

• Type: Journal
• Year: 2007
• Where: CORR
• Authors: Dung Ngoc Dao, Chau Yuen, Chintha Tellambura, Yong Liang Guan, Tjeng Thiang Tjhung
• Keywords: CORR 2007, Education, Keywords-Space-time Block Codes, Rate-one Space-time Block, Signal Rotation Method