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Compressed-Sensing Assisted Spatial Multiplexing Aided Spatial Modulation
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DOI：10.1109/TWC.2017.2771759.png)
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Abstract
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Spatial-multiplexing aidedspatialmodulation (SMx-SM) is proposed, which intrinsically amalgamates the concept of vertical bell labs space-time (V-BLAST) and SM to attain a high transmission rate, despite its low number of radio frequency (RF) chains at the transmitter. Specifically, in the SMx-SM scheme, the transmit antennas are partitioned into groups and the SM technique is applied individually to each group. Furthermore, low-complexity threshold-aided compressive sensing-based and message passing-based detectors are derived for our SMx-SM system. Our simulation results show that the proposed SMx-SM system exhibits a better performance despite its lower complexity than the conventional generalized spatial modulation system. More importantly, the proposed SMx-SM system is capable of providing considerable performance gains over the V-BLAST system at the same number of RF chains and throughput. Finally, an upper bound is derived for the average bit error probability, which is confirmed by our simulation results.
Keywords:
Spatial modulation (SM)
multiple-input multiple-output (MIMO)
vertical bell labs space-time (VBLAST)
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