Gaussian Belief Propagation Based Multiuser Detection

Details Gaussian Belief Propagation Based Multiuser Detection Gaussian Belief Propagation Based Multiuser Detection

2008-10-09

arxiv.org/abs/0810.1729v1

The 2008 IEEE International Symposium on Information Theory (ISIT 2008), Toronto, July 2008

Computer Science

Information Theory

6 pages, 1 figures, appeared in the 2008 IEEE International Symposium on Information Theory, Toronto, July 2008

Scientific paper

10.1109/ISIT.2008.4595314

In this work, we present a novel construction for solving the linear multiuser detection problem using the Gaussian Belief Propagation algorithm. Our algorithm yields an efficient, iterative and distributed implementation of the MMSE detector. We compare our algorithm's performance to a recent result and show an improved memory consumption, reduced computation steps and a reduction in the number of sent messages. We prove that recent work by Montanari et al. is an instance of our general algorithm, providing new convergence results for both algorithms.

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