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Souto, N. M. B. & Lopes, H. A. (2017). Efficient recovery algorithm for discrete valued sparse signals using an ADMM approach. IEEE Access. 5, 19562-19569
N. M. Souto and H. A. Lopes, "Efficient recovery algorithm for discrete valued sparse signals using an ADMM approach", in IEEE Access, vol. 5, pp. 19562-19569, 2017
@article{souto2017_1715139985075, author = "Souto, N. M. B. and Lopes, H. A.", title = "Efficient recovery algorithm for discrete valued sparse signals using an ADMM approach", journal = "IEEE Access", year = "2017", volume = "5", number = "", doi = "10.1109/ACCESS.2017.2754586", pages = "19562-19569", url = "http://ieeexplore.ieee.org/document/8048496/" }
TY - JOUR TI - Efficient recovery algorithm for discrete valued sparse signals using an ADMM approach T2 - IEEE Access VL - 5 AU - Souto, N. M. B. AU - Lopes, H. A. PY - 2017 SP - 19562-19569 SN - 2169-3536 DO - 10.1109/ACCESS.2017.2754586 UR - http://ieeexplore.ieee.org/document/8048496/ AB - Motivated by applications in wireless communications, in this paper we propose a reconstruction algorithm for sparse signals whose values are taken from a discrete set, using a limited number of noisy observations. Unlike conventional compressed sensing algorithms, the proposed approach incorporates knowledge of the discrete valued nature of the signal in the detection process. This is accomplished through the alternating direction method of the multipliers which is applied as a heuristic to decompose the associated maximum likelihood detection problem in order to find candidate solutions with a low computational complexity order. Numerical results in different scenarios show that the proposed algorithm is capable of achieving very competitive recovery error rates when compared with other existing suboptimal approaches. ER -