Title :
A joint symbol detection algorithm efficient at low SNR for a Multi-Device STBC-MIMO system
Author :
Naeem, M. ; Lee, D.C.
Author_Institution :
Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC, Canada
Abstract :
In this paper, we present an algorithm for joint symbol detection (JSD) at the receiver in a Multi-Device (MD) STBC-MIMO System. We apply Cross Entropy Optimization (CEO) to JSD problem in a MD-STBC-MIMO system. We find that this algorithm has good performance especially at a low SNR region in a rank-deficient MD-STBC-MIMO system. ML detector, Sphere Decoder (SD) and Semi-definite relaxation (SDR) are computationally complex. The proposed CEO detector finds a nearly optimal solution in real time and also requires very low amount of computation as compared to the ML, SD and SDR.
Keywords :
MIMO communication; block codes; maximum likelihood detection; optimisation; space-time codes; ML detector; cross entropy optimization; joint symbol detection algorithm; low SNR region; maximum likelihood detector; multidevice STBC-MIMO system; semidefinite relaxation; space time block codes; sphere decoder; Block codes; Detection algorithms; Detectors; Entropy; Maximum likelihood decoding; Maximum likelihood detection; Polynomials; Receiving antennas; Space time codes; Transmitting antennas; Cross-Entropy Optimization; STBC-MIMO;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2010 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-4725-1
Electronic_ISBN :
978-1-4244-4726-8
DOI :
10.1109/RWS.2010.5434269
