Joint NOMA Transmission in Indoor Multi-cell VLC Networks

Rajput, VS and Ashok, DR and Chockalingam, A (2019) Joint NOMA Transmission in Indoor Multi-cell VLC Networks. In: 30th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2019, 8 - 11 September 2019, Istanbul.

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Abstract

In this paper, we consider downlink multiuser communication in indoor visible light communication (VLC) networks with multiple attocells using non-orthogonal multiple access (NOMA) transmission. We propose a joint NOMA transmission scheme, where the users in multi-cell overlapping regions are jointly served by all the corresponding VLC access points. For the proposed scheme, we consider efficient subcarrier allocation techniques, namely, area based subcarrier allocation and user based subcarrier allocation. Our performance results show that the proposed joint transmission scheme achieves significantly higher sum rates compared to the frequency reuse factor-2 (FR-2) NOMA scheme which uses independent transmission across multiple attocells. In particular, the area based subcarrier allocation scheme performs better than FR-2 NOMA for large number of users and the user based subcarrier allocation scheme performs better than FR-2 NOMA for any number of users. © 2019 IEEE.

Item Type:	Conference Paper
Publication:	IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Cells; Cytology; Femtocell; Light; Radio communication; Transmissions, Frequency reuse factor; Joint transmissions; Multicell; Multiuser communication; NOMA; Sub-carrier allocation; Transmission schemes; Visible light communications (VLC), Visible light communication
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	06 Jan 2023 09:08
Last Modified:	06 Jan 2023 09:08
URI:	https://eprints.iisc.ac.in/id/eprint/78830

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