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Bayesian framework and message passing for joint support and signal recovery of approximately sparse signals

Shedthikere, Shubha and Chockalingam, A (2011) Bayesian framework and message passing for joint support and signal recovery of approximately sparse signals. In: 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 22-27 May 2011, Prague, Czech Republic.

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Abstract

In this paper, we develop a low-complexity message passing algorithm for joint support and signal recovery of approximately sparse signals. The problem of recovery of strictly sparse signals from noisy measurements can be viewed as a problem of recovery of approximately sparse signals from noiseless measurements, making the approach applicable to strictly sparse signal recovery from noisy measurements. The support recovery embedded in the approach makes it suitable for recovery of signals with same sparsity profiles, as in the problem of multiple measurement vectors (MMV). Simulation results show that the proposed algorithm, termed as JSSR-MP (joint support and signal recovery via message passing) algorithm, achieves performance comparable to that of sparse Bayesian learning (M-SBL) algorithm in the literature, at one order less complexity compared to the M-SBL algorithm.

Item Type: Conference Paper
Additional Information: Copyright 2011 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: Sparse signal recovery;approximately sparse signals;support recovery;Bayesian framework;message passing..
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 27 Dec 2011 08:59
Last Modified: 27 Dec 2011 08:59
URI: http://eprints.iisc.ernet.in/id/eprint/42825

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