Title :
Space-Time Codes with Block-Orthogonal Structure and Their Simplified ML and Near-ML Decoding
Author :
Ren, Tian Peng ; Guan, Yong Liang ; Yuen, Chau ; Zhang, Er Yang
Author_Institution :
Nat. Univ. of Defense Technol., Changsha, China
Abstract :
Existing high-rate full diversity space-time codes (STC) always have high decoding complexity with traditional ML (maximum-likelihood) or near-ML decoding. Hence the decoding scheme with reduced complexity is required. In this paper, block-orthogonal structure is introduced for the first time, and most of the existing STC do have such structure. A simplified decoding is proposed to exploit the block-orthogonal structure of the code and reduce the complexity drastically without any extra loss in decoding performance.
Keywords :
maximum likelihood decoding; space-time codes; block-orthogonal structure; near-maximum-likelihood decoding; space-time codes; Broadband antennas; Complexity theory; Euclidean distance; MIMO; Matrix decomposition; Maximum likelihood decoding;
Conference_Titel :
Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 IEEE 72nd
Conference_Location :
Ottawa, ON
Print_ISBN :
978-1-4244-3573-9
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2010.5594144
