Power controlled outage-aware optimal protocol for NOMA-assisted underlay D2D networks

Jose, Justin;Bhatia, Vimal;

Please use this identifier to cite or link to this item: https://dspace.iiti.ac.in/handle/123456789/10955

Title:	Power controlled outage-aware optimal protocol for NOMA-assisted underlay D2D networks
Authors:	Jose, Justin;Bhatia, Vimal;
Keywords:	Power control; Spectrum efficiency; Multiple access; Multiple access systems; Non-orthogonal; Non-orthogonal multiple access; Optimal protocols; Power allocations; Power controlled; Spectral efficiencies; Underlay D2D; Wireless communication system; Outages
Issue Date:	2022
Publisher:	Elsevier GmbH
Citation:	Jose, J., Agarwal, A., Krejcar, O., & Bhatia, V. (2022). Power controlled outage-aware optimal protocol for NOMA-assisted underlay D2D networks. AEU - International Journal of Electronics and Communications, 157 doi:10.1016/j.aeue.2022.154418
Abstract:	Underlay device-to-device (D2D) and non-orthogonal multiple access (NOMA) are two promising technologies that have potential to enhance the spectral efficiency for future wireless communication systems. This paper studies an underlay D2D-NOMA system in an uplink cellular network. Different from the previous works, we minimize the outage probability (OP) while allocating optimal power to the D2D group receivers. Specifically, a D2D power allocation (DPA) problem is formulated and a globally-optimal solution is obtained. As a special case, closed-form expressions are also derived for asymptotic OP-based DPA. Results are numerically validated, and an overall average performance improvement of at least 24% is observed over existing conventional power control schemes. © 2022 Elsevier GmbH
URI:	https://doi.org/10.1016/j.aeue.2022.154418 https://dspace.iiti.ac.in/handle/123456789/10955
ISSN:	1434-8411
Type of Material:	Journal Article
Appears in Collections:	Department of Electrical Engineering

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