Joint Resource and Power Allocation Technique for Downlink Power-Domain Non-Orthogonal Multiple Access

Abstract

In this paper, a novel resource and power allocation technique is proposed for a power-domain non-orthogonal multiple access scheme using successive interference cancellation in a downlink cellular system. It aims at providing a flexible balancing between throughput and fairness maximization and incorporates unequal power repartition among allocated subbands using waterfilling. Its main strength is the ability to achieve a high level of fairness in every scheduling slot, therefore improving the quality of experience for all users. Simulation results show that the proposed metric enhances fairness and improves system capacity, when compared to the conventional proportional fairness scheduler. Index Terms-Power-domain non-orthogonal multiple access, user scheduling, power allocation, fairness.

Performance Analysis for Downlink MIMO-NOMA in Millimeter Wave Cellular Network with D2D Communications

“…On the receiver sides, the multiuser detection algorithms, such as successive interference cancellation, have been utilized to detect the signal, regarding the weak signal as the interference, and decode the strong signal while cancelling the strong signal to detect the weak signal [16,17]. Aiming at enhancing system capacity and user fairness, the authors have presented a novel resource and power allocation technique which can provide a flexible balancing between capacity and fairness maximization in [18]. Meanwhile, the optimum received power levels of uplink NOMA signal have been proposed in [19].…”