Title
Two-Level Sparse Structure-Based Compressive Sensing Detector for Uplink Spatial Modulation With Massive Connectivity
Abstract
Spatial modulation (SM) with high spectrum and energy efficiencies is promising for future massive connectivity communication networks, in which user activities are often sporadic and SM signals are sparse. Such characteristics, if exploited in the detection process, will lead to gains in terms of receiver complexity and performance. This letter proposes a compressive sensing (CS) algorithm for multiuser detection in SM-MIMO systems to efficiently exploit such characteristics. Specifically, the temporal correlation of the user activities and the random transmission nature of SM signals are used to improve detection performance without requiring prior knowledge of the user sparsity level. In addition, the proposed algorithm requires a lower number of BS receive and transmit antennas in each user compared with existing CS-based detection algorithms and has a significantly lower computational complexity.
Year
DOI
Venue
2019
10.1109/LCOMM.2019.2919836
IEEE Communications Letters
Keywords
DocType
Volume
Modulation,Correlation,Transmitting antennas,Indexes,Detectors,Uplink,Detection algorithms
Journal
23
Issue
ISSN
Citations 
9
1089-7798
3
PageRank 
References 
Authors
0.36
0
4
Name
Order
Citations
PageRank
Xiangxue Ma130.36
Jinsub Kim255.46
Dongfeng Yuan3809.09
Huaping Liu48220.94