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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.
Date of Conference: 6-8 Dec. 2010