Precoder and Combiner Design for Generalized Spatial Modulation based Multiuser MIMO Systems

Multiple input multiple output (MIMO) schemes based on generalized spatial modulations (GSM) have been widely considered as potential candidate techniques for next-generation wireless networks, as they can improve both spectral and energy efficiency. In this paper we propose a multi-user MIMO system...

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Veröffentlicht in:2020 23rd International Symposium on Wireless Personal Multimedia Communications (WPMC) S. 1 - 6
Hauptverfasser: Brogueira, Bernardo, Pavia, Joao Pedro, Souto, Nuno, Correia, Americo
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 19.10.2020
Schlagworte:
B5G
Constellations
Detectors
generalised spatial modulation (GSM)
GSM
Interference
MIMO communication
Modulation
multiple input multiple output (MIMO)
Precoder design
Quadrature Amplitude Modulation (QAM)
quadrature amplitude modulation (QAM) constellations
Receivers
Transmitting antennas
ISBN:9781728182971, 1728182972
ISSN:1882-5621
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Zusammenfassung:Multiple input multiple output (MIMO) schemes based on generalized spatial modulations (GSM) have been widely considered as potential candidate techniques for next-generation wireless networks, as they can improve both spectral and energy efficiency. In this paper we propose a multi-user MIMO system, where a base station transmits precoded GSM symbols to several receivers. In the adopted GSM approach, multiple antennas transmit different high-level QAM symbols simultaneously. The precoder is designed in order to remove interference between users while an iterative algorithm is applied at the receiver to accomplish single-user GSM detection. Simulation results show that the presented GSM MU-MIMO approach is capable to effectively exploit a large number of transmit antennas deployed at the transmitter and also provide performance gains over conventional MU-MIMO schemes with identical spectral efficiencies.
ISBN:9781728182971
1728182972
ISSN:1882-5621
DOI:10.1109/WPMC50192.2020.9309474