Title :
Reduced-Complexity Soft-Decision Aided Space-Time Shift Keying
Author :
Xu, Chao ; Sugiura, Shinya ; Ng, Soon Xin ; Hanzo, Lajos
Author_Institution :
Sch. of Electron. & Comput. Sci., Univ. of Southampton, Southampton, UK
Abstract :
In this letter, we propose to reduce the detection complexity of soft-decision aided Space-Time Shift Keying (STSK). More explicitly, we propose a vector-by-vector based STSK detector, which exhibits a lower complexity compared to the classic block-by-block based Space-Time Modulation (STM) detector. We further operate the STSK detector on a symbol-by-symbol basis, so that a near-capacity performance may be achieved with the aid of channel coding at a reduced complexity.
Keywords :
channel coding; communication complexity; maximum likelihood detection; modulation; block-by-block based STM detector; channel coding; detection complexity reduction; max-log-MAP algorithm; near-capacity performance; soft-decision aided space-time shift keying; space-time modulation detector; symbol-by-symbol basis; vector-by-vector based STSK detector; Binary phase shift keying; Complexity theory; Detectors; Dispersion; Indexes; Quadrature amplitude modulation; Reduced-complexity detection; soft-decision aided detection; space-time shift keying;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2011.2162829
