Sparsely spread CDMA - A statistical mechanics-based analysis

Raymond, Jack and Saad, David (2007). Sparsely spread CDMA - A statistical mechanics-based analysis. Journal of Physics A: Mathematical and Theoretical, 40 (41), pp. 12315-12333.

Abstract

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: https://doi.org/10.1088/1751-8113/40/41/004
Divisions: Engineering & Applied Sciences
Engineering & Applied Sciences > Mathematics
Engineering & Applied 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
Full Text Link: http://iopscience.iop.org/1751-8121/40/41/004/
Related URLs: http://www.scopus.com/inward/record.url?scp=35748965857&partnerID=8YFLogxK (Scopus URL)
Published Date: 2007-10-12
Authors: Raymond, Jack
Saad, David ( 0000-0001-9821-2623)

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