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Adaptive selection of search space in look ahead orthogonal matching pursuit

Ambat, Sooraj K and Chatterjee, Saikat and Hari, KVS (2012) Adaptive selection of search space in look ahead orthogonal matching pursuit. In: 2012 National Conference on Communications (NCC), 3-5 Feb. 2012, Kharagpur.

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Official URL: http://dx.doi.org/10.1109/NCC.2012.6176852


Compressive Sensing theory combines the signal sampling and compression for sparse signals resulting in reduction in sampling rate and computational complexity of the measurement system. In recent years, many recovery algorithms were proposed to reconstruct the signal efficiently. Look Ahead OMP (LAOMP) is a recently proposed method which uses a look ahead strategy and performs significantly better than other greedy methods. In this paper, we propose a modification to the LAOMP algorithm to choose the look ahead parameter L adaptively, thus reducing the complexity of the algorithm, without compromising on the performance. The performance of the algorithm is evaluated through Monte Carlo simulations.

Item Type: Conference Paper
Publisher: IEEE
Additional Information: Copyright of this article belongs to IEEE.
Keywords: Compressed Sensing; Sparse Recovery; Matching Pursuit Algorithms
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 19 Dec 2013 10:15
Last Modified: 19 Dec 2013 10:15
URI: http://eprints.iisc.ac.in/id/eprint/48035

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