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Author(s): Brogueira, B.
Pavia, J. P.
Souto, N.
Correia, A.
Date: 2020
Title: Precoder and combiner design for generalized spatial modulation based multiuser MIMO systems
Event title: 23rd International Symposium on Wireless Personal Multimedia Communications, WPMC 2020
ISSN: 1347-6890
ISBN: 978-1-7281-8297-1
DOI (Digital Object Identifier): 10.1109/WPMC50192.2020.9309474
Keywords: B5G
Generalised Spatial Modulation (GSM)
Precoder design
Multiple Input Multiple Output (MIMO)
Quadrature Amplitude Modulation (QAM)
Abstract: 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.
Peerreviewed: yes
Access type: Open Access
Appears in Collections:IT-CRI - Comunicações a conferências internacionais

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