Zheng Yang

TL;DR: In this letter, the performance of non-orthogonal multiple access (NOMA) is investigated in a cellular downlink scenario with randomly deployed users and developed analytical results show that NOMA can achieve superior performance in terms of ergodic sum rates; however, the outage performance of N OMA depends critically on the choices of the users' targeted data rates and allocated power.

TL;DR: A novel dynamic power allocation scheme is proposed to downlink and uplink non-orthogonal multiple access (NOMA) scenarios with two users for more flexibly meeting various quality of service requirements.

TL;DR: The results demonstrate that NOMA can achieve superior performance compared to the traditional orthogonal multiple access (OMA) and the derived expressions for the outage probability and the average sum rate match well with the Monte Carlo simulations.

TL;DR: Analytical results demonstrate that the two power allocation policies realize different tradeoffs between the reception reliability, user fairness and system complexity, although all of them realize the same diversity gain.

TL;DR: In this article, the performance of NOMA in a cellular downlink scenario with randomly deployed users is investigated, and the developed analytical results show that NOMAs can achieve superior performance in terms of ergodic sum rates; however, the outage performance of nOMA depends critically on the choices of the users' targeted data rates and allocated power.