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Proceedings Paper

Adaptive sphere decoding for space-time codes of wireless MIMO communications
Author(s): Xinjia Chen; Ernest Walker
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Paper Abstract

In this paper, we develop an adaptive sphere decoding technique for space-time coding of wireless MIMO communications. This technique makes use of the statistics of previous decoding results to reduce the decoding complexity of subsequent decoding process. Specially, we propose a method for the determination of the initial sphere radius for the decoding process of future time-frame based on a queue of records of minimum sphere radius obtained from the decoding process of previous time-frames. Concrete methods have been derived for the choice of appropriate queue sizes. Numerical experiment is performed for demonstrating the efficiency of the adaptive technique.

Paper Details

Date Published: 28 April 2010
PDF: 7 pages
Proc. SPIE 7706, Wireless Sensing, Localization, and Processing V, 77060N (28 April 2010); doi: 10.1117/12.852501
Show Author Affiliations
Xinjia Chen, Southern Univ. (United States)
Ernest Walker, Southern Univ. (United States)

Published in SPIE Proceedings Vol. 7706:
Wireless Sensing, Localization, and Processing V
Sohail A. Dianat; Michael D. Zoltowski, Editor(s)

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