%0 Conference Proceedings %T Joint Power and Subcarrier Allocation in Multi-Cell Multi-Carrier NOMA %+ University of Maryland [College Park] %+ Laboratory of Information, Network and Communication Sciences (LINCS) %+ Nokia Bell Labs [Paris-Saclay] %+ Laboratoire Traitement et Communication de l'Information (LTCI) %+ Réseaux, Mobilité et Services (RMS) %+ Indian Institute of Technology Madras (IIT Madras) %A Banerjee, Subhankar %A Chen, Chung, Shue %A Coupechoux, Marceau %A Sinha, Abhishek %< avec comité de lecture %B ICUFN2022 - 13th International Conference on Ubiquitous and Future Networks %C Barcelona, Spain %8 2022-07-05 %D 2022 %Z Computer Science [cs]/Networking and Internet Architecture [cs.NI]Conference papers %X 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. %G English %2 https://hal.inria.fr/hal-03721736/document %2 https://hal.inria.fr/hal-03721736/file/Joint%20Power%20and%20Subcarrier%20Allocation%20in%20NOMA%202022.pdf %L hal-03721736 %U https://hal.inria.fr/hal-03721736 %~ INSTITUT-TELECOM %~ INRIA %~ TELECOM-PARISTECH %~ INRIA-AUT %~ SORBONNE-UNIVERSITE %~ SORBONNE-UNIV %~ LTCI %~ INFRES %~ RMS %~ IP_PARIS %~ INSTITUTS-TELECOM %~ SU-TI %~ ALLIANCE-SU