A Compressed Sensing-Based Signal Recovery Technique for Multi-User Spatial Modulation Systems

Title & Authors
A Compressed Sensing-Based Signal Recovery Technique for Multi-User Spatial Modulation Systems
Park, Jeonghong; Ban, Tae-Won; Jung, Bang Chul;

Abstract
In this paper, we propose a compressed sensing-based signal recovery technique for an uplink multi-user spatial modulation (MU-SM) system. In the MU-SM system, only one antenna among $\small{N_t}$ antennas of each user becomes active by nature. Thus, this characteristics is exploited for signal recovery at a base station. We modify the conventional orthogonal matching pursuit (OMP) algorithm which has been widely used for sparse signal recovery in literature for the MU-SM system, which is called MU-OMP. We also propose a parallel OMP algorithm for the MU-SM system, which is called MU-POMP. Specifically, in the proposed algorithms, antenna indices of a specific user who was selected in the previous iteration are excluded in the next iteration of the OMP algorithm. Simulation results show that the proposed algorithms outperform the conventional OMP algorithm in the MU-SM system.
Keywords
Multiuser;Spatial modulation;Sparse signal recovery;Orthogonal matching pursuit;Multiple input and multiple output system;
Language
Korean
Cited by
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LZ78 압축 데이터의 구조적 패턴에 기반한 새로운 오류 검출 알고리즘,공명식;권범;김진우;이상훈;

한국통신학회논문지, 2016. vol.41. 11, pp.1356-1363
2.
대규모 랜덤 액세스 네트워크에서 병렬 직교매칭퍼슛 기술을 이용한 사용자 검출 기법,박정홍;정방철;김진우;김정필;

한국정보통신학회논문지, 2015. vol.19. 6, pp.1313-1320
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