Joint User-Channel Assignment and Power Allocation For Non-Orthogonal Multiple Access In A 5G Heterogeneous Ultra-Dense Networks

Amel Khodmi (1) , Sonia Ben Rejeb (1) , Nazim Agoulmine (2) , Zièd Choukair (1)

1 Mediatron Laboratory
2 IBISC - Informatique, BioInformatique, Systèmes Complexes

Non-orthogonal multiple access (NOMA) is one of the various techniques that attracted extensive attention due to its superior spectrum efficiency. In this paper, joint access and backhaul resource allocation in a 5G Heterogeneous ultra-dense network (H-UDN) are proposed in order to maximize the overall system throughput. We adopt a decouple method to separate the joint resource problem into two subproblems. The user-channel assignment subproblem is solved via a matching scheme and the power allocation subproblem is solved via a Stackelberg game, in which the base station (BS) acts as the leader and the relay node (RN) acts as a follower. Simulation results show the effectiveness of our approach.

Keywords: Game Theory; NOMA; QoS; Resource allocation

Domains: Networking and Internet Architecture [cs.NI]

Amel Khodmi, Sonia Ben Rejeb, Nazim Agoulmine, Zièd Choukair. Joint User-Channel Assignment and Power Allocation For Non-Orthogonal Multiple Access In A 5G Heterogeneous Ultra-Dense Networks. 16th IEEE International Wireless Communications and Mobile Computing Conference (IWCMC 2020), Jun 2020, Limassol, Cyprus. pp.1879--1884, ⟨10.1109/IWCMC48107.2020.9148116⟩. ⟨hal-02925635⟩