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Towards closing the capacity gap on multiple antenna channels

Vikalo, Haris and Hassibi, Babak (2002) Towards closing the capacity gap on multiple antenna channels. In: 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP),. Vol.3. IEEE , Piscataway, NJ, pp. 2385-2388. ISBN 0-7803-7402-9. https://resolver.caltech.edu/CaltechAUTHORS:20150212-073434297

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Abstract

In recent years, soft iterative decoding techniques have been shown to greatly improve the bit error rate performance of various communication systems. For multiple antenna systems, however, it is not clear what is the best way to obtain the soft-information required of the iterative scheme with low complexity. In this paper, we propose a modification of the Fincke-Pohst (sphere decoder) algorithm to estimate the MAP probability of the received symbol sequence. The new algorithm solves a nonlinear integer least-squares problem and, over a wide range of rates and SNRs, has polynomial-time (often cubic) complexity. The performance of the algorithm, combined with convolutional, turbo, and LDPC codes is demonstrated on several multiple antenna channels.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1109/ICASSP.2002.5745126DOIArticle
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5745126PublisherArticle
Additional Information:© 2002 IEEE.
DOI:10.1109/ICASSP.2002.5745126
Record Number:CaltechAUTHORS:20150212-073434297
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150212-073434297
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54756
Collection:CaltechAUTHORS
Deposited By: Shirley Slattery
Deposited On:18 Feb 2015 00:26
Last Modified:10 Nov 2021 20:37

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