research-article

QoS-based resource allocation for uplink NOMA networks

Authors:

Yaqin XieAuthors Info & Claims

Volume 238, Issue C

https://doi.org/10.1016/j.comnet.2023.110084

Published: 14 March 2024 Publication History

Abstract

Nowadays, several next-generation multiple access technologies are proposed, and non-orthogonal multiple access (NOMA) is one of the candidates. In NOMA systems, since the utilization of successive interference cancellation (SIC), the SIC order is one of the significant factors to be considered. In the literature, the SIC order is usually determined by the channel gains, which is not stable especially when the users are with similar channels. In this paper, we creatively propose the quality-of-service-based SIC order in the uplink NOMA system, and focus on the resource allocation to maximize the rate. Specifically, we first optimize the powers with given user grouping and provide solutions for different cases of channel gains. Furthermore, the Hungarian algorithm is jointly exploited with the optimized powers. Simulation results show that the proposed algorithm outperforms traditional orthogonal multiple access and even achieves similar rate with the exhaustive search.

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QoS-based resource allocation for uplink NOMA networks

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Published In

cover image Computer Networks: The International Journal of Computer and Telecommunications Networking

Computer Networks: The International Journal of Computer and Telecommunications Networking Volume 238, Issue C

Jan 2024

268 pages

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Elsevier B.V.

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Elsevier North-Holland, Inc.

United States

Publication History

Published: 14 March 2024

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