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Joint Power and Subcarrier Allocation in Multi-Cell Multi-Carrier NOMA

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Abstract

Non-orthogonal multiple access (NOMA) is a technology proposed for next generation cellular networks because of its high spectral efficiency and enhanced user connectivity. However, in the literature the optimal joint power and sub-carrier allocation for NOMA has been proposed for single cell only. Consequently, a global optimal algorithm for the joint power and sub-carrier allocation for NOMA system in multi-cell scenario is still an open problem. In this work, we propose a polyblock optimization based algorithm for obtaining a global optimal solution. It has reduced complexity due to a necessary and sufficient condition for feasible successive interference cancellation (SIC). Besides, we can adjust its optimization approximation parameter to serve as benchmark solution or to provide suitable solution for multi-cell multi-carrier NOMA systems. Numerical studies have shown its effectiveness.
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Dates and versions

hal-03721736 , version 1 (12-07-2022)

Identifiers

  • HAL Id : hal-03721736 , version 1

Cite

Subhankar Banerjee, Chung Shue Chen, Marceau Coupechoux, Abhishek Sinha. Joint Power and Subcarrier Allocation in Multi-Cell Multi-Carrier NOMA. ICUFN2022 - 13th International Conference on Ubiquitous and Future Networks, Jul 2022, Barcelona, Spain. ⟨hal-03721736⟩
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