Title :
A near-ML complex K-Best sphere decoder with efficient search design for MIMO systems
Author :
Huang, Chung-Jung ; Sung, Chih-Sheng ; Lee, Ta-Sung
Author_Institution :
Dept. of Electr. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
In this paper, a new search strategy based on a derived cumulative distribution function (cdf) is proposed. It is shown that incorporating detection ordering into the conventional K-Best sphere decoding algorithm (SDA) offers a systematic method for determining the numbers of required ML search layers. With the features, applying the proposed search strategy to conventional complex K-Best SDA, the decoder can achieve excellent performance, and it is well-suited to real-time MIMO-OFDM systems.
Keywords :
MIMO communication; OFDM modulation; maximum likelihood decoding; maximum likelihood detection; K-best sphere decoding algorithm; MIMO-OFDM system; ML search layer; cumulative distribution function; Decoding; MIMO; Variable speed drives;
Conference_Titel :
Intelligent Signal Processing and Communication Systems (ISPACS), 2010 International Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-7369-4
DOI :
10.1109/ISPACS.2010.5704617
