Title :
Reduced-Complexity Noncoherently Detected Differential 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
fDate :
3/1/2011 12:00:00 AM
Abstract :
Motivated by the recent development of spatial modulation (SM) and differential space-time shift keying (DSTSK), we propose a reduced-complexity conventional differential detector (CDD) as well as its reduced-complexity multiple-symbol differential sphere detector (MSDSD) counterpart for DSTSK. Both schemes operate on a symbol-by-symbol basis in order to reduce the complexity of the classic block-by-block-based CDD and MSDSD, whilst still attaining the optimum performance of the full-search-based ML detector.
Keywords :
differential detection; differential phase shift keying; maximum likelihood detection; space-time adaptive processing; DSTSK; ML detector; conventional differential detector; differential space time shift keying; multiple-symbol differential sphere detector; spatial modulation; Complexity theory; Decoding; Detectors; Dispersion; Equations; Mathematical model; Matrix converters; Differential space-time shift keying; multiple-symbol differential sphere detection; reduced complexity detection;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2010.2100095
