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A near-ML complex K-Best sphere decoder with efficient search design for MIMO systems

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3 Author(s)
Chung-Jung Huang ; Dept. of Electr. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Chih-Sheng Sung ; Ta-Sung Lee

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.

Published in:

Intelligent Signal Processing and Communication Systems (ISPACS), 2010 International Symposium on

Date of Conference:

6-8 Dec. 2010