Title :
Makings of the 4 × 4 space-time block code of choice
Author :
Kundu, Sandipan ; Pados, Dimitris A. ; Su, Weifeng ; Grover, Rohan
Author_Institution :
Dept. of Electr. Eng., State Univ. of New York at Buffalo, Buffalo, NY, USA
Abstract :
We present a new 4×4 Hadamard-precoded Quasi-Orthogonal Space-Time Block Code (QO-STBC) that enables reliability-based prioritized symbol detection using linear filters. Approximate block-error-rate analysis is carried out and used to optimize the code rotation angles. For benchmarking purposes, the maximum-likelihood (ML) code detector is also derived with complexity of the order of joint two-real-symbol decoding. Numerical and simulation studies compare linear filter decoding against ML decoding.
Keywords :
Hadamard codes; approximation theory; error statistics; maximum likelihood decoding; maximum likelihood detection; orthogonal codes; reliability; space-time block codes; Hadamard-precoded QO-STBC; Hadamard-precoded quasi-orthogonal space-time block code; ML code detector; approximate block-error-rate analysis; code rotation angles; linear filters; maximum-likelihood code detector; numerical simulation; reliability-based prioritized symbol detection; two-real-symbol decoding; Complexity theory; Decoding; Error analysis; Error probability; Interference; Joints; Signal to noise ratio; Maximum-likelihood detection; matched-filter (MF); minimum-mean-square-error (MMSE) filter; multi-input multi-output (MIMO) communications; quasi-orthogonal space-time block codes (QO-STBC); space-time block codes (STBC);
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2012 IEEE
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-0436-8
DOI :
10.1109/WCNC.2012.6214443
