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Improvement of the sphere decoding complexity through an adaptive OSIC-SD system

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7 Author(s)
Portugal, S. ; Sch. of Electron. & Comput. Eng., Chonnam Nat. Univ., Gwangju, South Korea ; Jeaho Park ; Changwoo Seo ; Insik Cho
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Sphere decoding is a decoding technique able to achieve the maximum likelihood error performance in fading environments; nevertheless, it exhibits a high complexity, especially in poor channel conditions. In this paper, we present an adaptive hybrid algorithm which reduces the complexity of conventional sphere decoding without sacrificing its error performance. Through simulations, we prove that the proposed system maintains almost the same bit error rate of the conventional sphere decoding, and exhibits a lower, quasi-constant complexity.

Published in:

Consumer Communications and Networking Conference (CCNC), 2011 IEEE

Date of Conference:

9-12 Jan. 2011

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