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Low-complexity compressive sensing detection for spatial modulation in large-scale multiple access channels

Garcia-Rodriguez, A; Masouros, C; (2015) Low-complexity compressive sensing detection for spatial modulation in large-scale multiple access channels. IEEE Transactions on Communications , 63 (7) pp. 2565-2579. 10.1109/TCOMM.2015.2434817. Green open access

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Abstract

In this paper, we propose a detector, based on the compressive sensing (CS) principles, for multiple-access spatial modulation (SM) channels with a large-scale antenna base station (BS). Particularly, we exploit the use of a large number of antennas at the BSs and the structure and sparsity of the SM transmitted signals to improve the performance of conventional detection algorithms. Based on the above, we design a CS-based detector that allows the reduction of the signal processing load at the BSs particularly pronounced for SM in large-scale multiple-input-multiple-output (MIMO) systems. We further carry out analytical performance and complexity studies of the proposed scheme to evaluate its usefulness. The theoretical and simulation results presented in this paper show that the proposed strategy constitutes a low-complexity alternative to significantly improve the system's energy efficiency against conventional MIMO detection in the multiple-access channel.

Type: Article
Title: Low-complexity compressive sensing detection for spatial modulation in large-scale multiple access channels
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/TCOMM.2015.2434817
Publisher version: http://dx.doi.org/10.1109/TCOMM.2015.2434817
Additional information: This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/
Keywords: compressive sensing, energy efficiency, large-scale MIMO, multiple access, Spatial modulation
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1468896
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