Energy-Efficient Power Allocation and User-Channel Assignment for NOMA Heterogeneous Ultra-Dense Network

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

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

This paper investigates joint user-channel assignment and energy-efficient power allocation problems for OFDM based Non Orthogonal multiple access (NOMA) Heterogeneous ultra-dense networks (H-UDN). We separate the joint resource problem using the decouple optimization method into two sub-problems, a joint user-channel assignment problem, and an energy-efficient power allocation problem. We tackle the joint user-channel assignment problem using a matching scheme and the energy-efficient power allocation problem using the Stack-elberg game. The simulation results show the effectiveness of our proposed algorithm in terms of energy efficiency and the minimum required user rate.

Mots clés: Energy-efficiency; Heterogeneous ultra dense networks; Non-orthogonal multiple-access; OFDM; Power allocation; User-channel assignment

Domaines: Réseaux et télécommunications [cs.NI]

Amel Khodmi, Sonia Ben Rejeb, Nazim Agoulmine, Zied Choukair. Energy-Efficient Power Allocation and User-Channel Assignment for NOMA Heterogeneous Ultra-Dense Network. 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2020), Aug 2020, London, United Kingdom. pp.1-7, ⟨10.1109/PIMRC48278.2020.9217254⟩. ⟨hal-02989927⟩