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Spatially modulated code-division multiple-access for high-connectivity multiple-access

Spatially modulated code-division multiple-access for high-connectivity multiple-access
Spatially modulated code-division multiple-access for high-connectivity multiple-access
In order to take the advantages of spatial modulation (SM) and support the multiple access (MA) communications requiring high-connectivity, we integrate the SM with DS-CDMA to propose a SM/DS-CDMA scheme, which is in favor of attaining both antenna diversity and frequency diversity. Associated with the SM/DS-CDMA scheme, a range of linear and nonlinear multiuser detectors (MUDs) are proposed and studied. Specifically, for linear MUDs, both minimum mean-square error aided joint spatial demodulation (MMSE-JSD) and MMSE-aided separate spatial demodulation (MMSE-SSD) are introduced. For nonlinear MUDs, we first present the joint maximum-likelihood MUD (JML-MUD) for demonstrating the potential of SM/DS-CDMA systems. Then, the MMSE-relied iterative interference cancellation (MMSE-IIC) is suggested, and associated with which two types of low-complexity high-efficiency reliability measurement schemes are proposed. In this paper, we mathematically analyze both the single-user average bit error rate (ABER) of the SM/DS-CDMA systems employing joint spatial demodulation (JSD), and the approximate ABER of the SM/DS-CDMA systems employing the MMSE-JSD. We investigate and compare the ABER performance of the SM/DS-CDMA systems with various detection schemes, and also with some legacy schemes. Our studies and performance results show that the SM/DS-CDMA systems in conjunction with appropriate MUD schemes are capable of providing a desirable trade-off among the number of users supportable, implementation complexity and the ABER performance.
1536-1276
4031-4046
Pan, Peng
56ea394e-58af-4d6f-8bd5-d08784d3a7f8
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Pan, Peng
56ea394e-58af-4d6f-8bd5-d08784d3a7f8
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7

Pan, Peng and Yang, Lieliang (2019) Spatially modulated code-division multiple-access for high-connectivity multiple-access. IEEE Transactions on Wireless Communications, 18 (8), 4031-4046. (doi:10.1109/TWC.2019.2920644).

Record type: Article

Abstract

In order to take the advantages of spatial modulation (SM) and support the multiple access (MA) communications requiring high-connectivity, we integrate the SM with DS-CDMA to propose a SM/DS-CDMA scheme, which is in favor of attaining both antenna diversity and frequency diversity. Associated with the SM/DS-CDMA scheme, a range of linear and nonlinear multiuser detectors (MUDs) are proposed and studied. Specifically, for linear MUDs, both minimum mean-square error aided joint spatial demodulation (MMSE-JSD) and MMSE-aided separate spatial demodulation (MMSE-SSD) are introduced. For nonlinear MUDs, we first present the joint maximum-likelihood MUD (JML-MUD) for demonstrating the potential of SM/DS-CDMA systems. Then, the MMSE-relied iterative interference cancellation (MMSE-IIC) is suggested, and associated with which two types of low-complexity high-efficiency reliability measurement schemes are proposed. In this paper, we mathematically analyze both the single-user average bit error rate (ABER) of the SM/DS-CDMA systems employing joint spatial demodulation (JSD), and the approximate ABER of the SM/DS-CDMA systems employing the MMSE-JSD. We investigate and compare the ABER performance of the SM/DS-CDMA systems with various detection schemes, and also with some legacy schemes. Our studies and performance results show that the SM/DS-CDMA systems in conjunction with appropriate MUD schemes are capable of providing a desirable trade-off among the number of users supportable, implementation complexity and the ABER performance.

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Paper-TW-18-0371 - Accepted Manuscript
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More information

Accepted/In Press date: 27 May 2019
e-pub ahead of print date: 10 June 2019
Published date: August 2019

Identifiers

Local EPrints ID: 431508
URI: http://eprints.soton.ac.uk/id/eprint/431508
ISSN: 1536-1276
PURE UUID: 9e9bc6e6-d359-4ae1-897c-537380f37a43
ORCID for Lieliang Yang: ORCID iD orcid.org/0000-0002-2032-9327

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Date deposited: 06 Jun 2019 16:30
Last modified: 15 Sep 2021 01:42

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Author: Peng Pan
Author: Lieliang Yang ORCID iD

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