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User Selection for NOMA based MIMO with Physical Layer Network Coding in Internet of Things Applications

Yilmaz, Saadet Simay and Ozbek, Berna and Ilguy, Mert and Okyere, Bismark and Musavian, Leila and Gonzalez, Jonathan (2021) 'User Selection for NOMA based MIMO with Physical Layer Network Coding in Internet of Things Applications.' IEEE Internet of Things Journal. ISSN 2327-4662

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Abstract

Non-orthogonal multiple access (NOMA) based multiple-input multiple-output (MIMO), which has the potential to provide both massive connectivity and high spectrum efficiency, is considered as one of the efficient techniques for sixth generation (6G) wireless systems. In massive Internet of Things (IoT) networks, user-set selection is crucial for enhancing the overall performance of NOMA based systems when compared with orthogonal multiple access (OMA) techniques. In this paper, we propose a user-set selection algorithm for IoT uplink transmission to improve the sum data rate of the NOMA based MIMO systems. In order to exchange data between the selected IoT pairs, we propose to employ wireless physical layer network coding (PNC) to further improve the spectral efficiency and reduce the delay to fulfill the requirements of future IoT applications. Performance evaluations are provided based on both sum data rate and bit error rate for the proposed NOMA based MIMO with PNC in the considered massive IoT scenarios.

Item Type: Article
Uncontrolled Keywords: User-Set Selection, MIMO, NOMA, PNC, IoT
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Elements
Date Deposited: 17 Jun 2021 08:14
Last Modified: 17 Jun 2021 09:15
URI: http://repository.essex.ac.uk/id/eprint/30581

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