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Optimal low-complexity detection for space division multiple access wireless systems

Wu, Yue and Cui, Tao and Tellambura, Chintha (2006) Optimal low-complexity detection for space division multiple access wireless systems. IEEE Communications Letters, 10 (3). pp. 156-158. ISSN 1089-7798. https://resolver.caltech.edu/CaltechAUTHORS:WUYieeecl06

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Abstract

A symbol detector for wireless systems using space division multiple access (SDMA) and orthogonal frequency division multiplexing (OFDM) is derived. The detector uses a sphere decoder (SD) and has much less computational complexity than the naive maximum likelihood (ML) detector. We also show how to detect non-constant modulus signals with constrained least squares (CLS) receiver, which is designed for constant modulus (unitary) signals. The new detector outperforms existing suboptimal detectors for both uncoded and coded systems.


Item Type:Article
Additional Information:© Copyright 2006 IEEE. Reprinted with permission. Manuscript received August 25, 2005. The associate editor coordinating the review of this letter and approving it for publication was Dr. Murat Uysal. This work has been supported in part by the Natural Sciences and Engineering Research Council of Canada, Informatics Circle of Research Excellence and Alberta Ingenuity Fund.
Subject Keywords:SDMA, OFDM modulation, computational complexity, least mean squares methods, maximum likelihood detection, modulation coding, radio access networks, space division multiple access
Issue or Number:3
Record Number:CaltechAUTHORS:WUYieeecl06
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:WUYieeecl06
Alternative URL:http://dx.doi.org/10.1109/LCOMM.2006.1603369
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5196
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:04 Oct 2006
Last Modified:02 Oct 2019 23:20

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