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The achievable rate analysis of generalized quadrature spatial modulation and a pair of low-complexity detectors

The achievable rate analysis of generalized quadrature spatial modulation and a pair of low-complexity detectors
The achievable rate analysis of generalized quadrature spatial modulation and a pair of low-complexity detectors
Generalized quadrature spatial modulation (GQSM) seamlessly amalgamates the generalized spatial modulation (GSM), quadrature spatial modulation (QSM) and vertical Bell Laboratories layered space-time (V-BLAST) techniques. In contrast to traditional multiple-input multiple-output (MIMO) schemes transmitting information bits only through the constellation defined on the complex plane, GQSM transmits additional information bits implicitly by selecting the transmit antenna (TA) activation pattern. The philosophy of QSM is that of separating the indices of the real and the imaginary parts of the transmit symbols, which increases the attainable throughput.
In this paper, we analyze the inherent benefits of GQSM in terms of throughput. More specifically, we first derive the achievable rate expression of the recent GQSM scheme and unveil the condition for GQSM to approach the maximum rate. Furthermore, we compare the rate of the GQSM scheme to that of other transmission schemes and reveal the conditions for the GQSM’s maximum throughput to exceed that of the benchmark schemes. Simulation results show that when the number of TAs
is 40 and quadrature phase shift keying (QPSK) is adopted, the rate of the GQSM scheme may reach 150% of that of V-BLAST. Additionally, a pair of low-complexity detectors are conceived one based on ordered successive interference cancellation (OSIC) and another one on the orthogonal matching pursuit (OMP) algorithm.
Generalized quadrature spatial modulation (GQSM), generalized spatial modulation (GSM), multiple-input multiple-output (MIMO), quadrature spatial modulation (QSM), spatial modulation (SM), spatial multiplexing
0018-9545
5203-5215
An, Jiancheng
5a2bcea0-5c9c-44c0-96d7-888d9192d72e
Xu, Chao
5710a067-6320-4f5a-8689-7881f6c46252
Liu, Yusha
711a72e8-e8be-4be4-a79d-ea1413e7012a
Gan, Lu
0a6bc3c0-b9b0-4125-ad4d-e065fdd98213
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
An, Jiancheng
5a2bcea0-5c9c-44c0-96d7-888d9192d72e
Xu, Chao
5710a067-6320-4f5a-8689-7881f6c46252
Liu, Yusha
711a72e8-e8be-4be4-a79d-ea1413e7012a
Gan, Lu
0a6bc3c0-b9b0-4125-ad4d-e065fdd98213
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

An, Jiancheng, Xu, Chao, Liu, Yusha, Gan, Lu and Hanzo, Lajos (2022) The achievable rate analysis of generalized quadrature spatial modulation and a pair of low-complexity detectors. IEEE Transactions on Vehicular Technology, 71 (5), 5203-5215. (doi:10.1109/TVT.2022.3155244).

Record type: Article

Abstract

Generalized quadrature spatial modulation (GQSM) seamlessly amalgamates the generalized spatial modulation (GSM), quadrature spatial modulation (QSM) and vertical Bell Laboratories layered space-time (V-BLAST) techniques. In contrast to traditional multiple-input multiple-output (MIMO) schemes transmitting information bits only through the constellation defined on the complex plane, GQSM transmits additional information bits implicitly by selecting the transmit antenna (TA) activation pattern. The philosophy of QSM is that of separating the indices of the real and the imaginary parts of the transmit symbols, which increases the attainable throughput.
In this paper, we analyze the inherent benefits of GQSM in terms of throughput. More specifically, we first derive the achievable rate expression of the recent GQSM scheme and unveil the condition for GQSM to approach the maximum rate. Furthermore, we compare the rate of the GQSM scheme to that of other transmission schemes and reveal the conditions for the GQSM’s maximum throughput to exceed that of the benchmark schemes. Simulation results show that when the number of TAs
is 40 and quadrature phase shift keying (QPSK) is adopted, the rate of the GQSM scheme may reach 150% of that of V-BLAST. Additionally, a pair of low-complexity detectors are conceived one based on ordered successive interference cancellation (OSIC) and another one on the orthogonal matching pursuit (OMP) algorithm.

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Accepted/In Press date: 25 February 2022
Published date: 1 May 2022
Keywords: Generalized quadrature spatial modulation (GQSM), generalized spatial modulation (GSM), multiple-input multiple-output (MIMO), quadrature spatial modulation (QSM), spatial modulation (SM), spatial multiplexing

Identifiers

Local EPrints ID: 455525
URI: http://eprints.soton.ac.uk/id/eprint/455525
ISSN: 0018-9545
PURE UUID: 691334c7-fca6-428f-8390-03be3c9f830f
ORCID for Chao Xu: ORCID iD orcid.org/0000-0002-8423-0342
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 24 Mar 2022 17:34
Last modified: 25 Jan 2023 02:45

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Contributors

Author: Jiancheng An
Author: Chao Xu ORCID iD
Author: Yusha Liu
Author: Lu Gan
Author: Lajos Hanzo ORCID iD

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