Sparsely spread CDMA - A statistical mechanics-based analysis


Sparse code division multiple access (CDMA), a variation on the standard CDMA method in which the spreading (signature) matrix contains only a relatively small number of nonzero elements, is presented and analysed using methods of statistical physics. The analysis provides results on the performance of maximum likelihood decoding for sparse spreading codes in the large system limit. We present results for both cases of regular and irregular spreading matrices for the binary additive white Gaussian noise channel (BIAWGN) with a comparison to the canonical (dense) random spreading code. © 2007 IOP Publishing Ltd.

Publication DOI:
Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Systems analytics research institute (SARI)
Additional Information: © 2007 IOP Publishing Ltd
Uncontrolled Keywords: Mathematical Physics,Modelling and Simulation,Statistics and Probability,Physics and Astronomy(all),Statistical and Nonlinear Physics
Publication ISSN: 1751-8121
Last Modified: 28 May 2024 07:07
Date Deposited: 19 Jul 2010 14:22
Full Text Link:
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
http://iopscien ... 8121/40/41/004/ (Publisher URL)
PURE Output Type: Article
Published Date: 2007-10-12
Authors: Raymond, Jack
Saad, David (ORCID Profile 0000-0001-9821-2623)



Version: Accepted Version

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