Title :
Efficient probabilistic sphere decoding architecture
Author :
Park, Sungchung ; Lee, Kwyro ; Park, Sin-Chong
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
An efficient probabilistic sphere decoding (SD) architecture, which applies a probabilistic search algorithm to the depth-first SD architecture, is proposed for multi-input multi-output (MIMO) systems. The proposed architecture evaluates the more promising candidates earlier in the search while retaining hardware efficiency of the depth-first SD architecture by adding special hardware blocks. The architecture either improves the error performance or increases the throughput of the state-of-the-art depth-first SD architecture significantly
Keywords :
MIMO systems; maximum likelihood decoding; MIMO; depth-first SD architecture; multiinput multioutput systems; probabilistic search algorithm; probabilistic sphere decoding; Communications technology; Computer architecture; Demodulation; Detection algorithms; Hardware; MIMO; Maximum likelihood decoding; Quadrature amplitude modulation; Receiving antennas; Throughput;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1692795