4 papers
5G Technologies Based Remote E-Health: Architecture, Applications, and Solutions
Wei Duan, Yancheng Ji, Yan Zhang +3
Currently, many countries are facing the problems of aging population, serious imbalance of medical resources supply and demand, as well as uneven geographical distribution, result…
Capacity Enhanced Cooperative D2D Systems over Rayleigh Fading Channels with NOMA
Wei Duan, Jinjuan Ju, Qiang Sun +4
This paper considers the cooperative device-to-device (D2D) systems with non-orthogonal multiple access (NOMA). We assume that the base station (BS) can communicate simultaneously…
Use of Non-Orthogonal Multiple Access in Dual-hop relaying
Wei Duan, Miaowen Wen, Yier Yan +2
To improve the sum-rate (SR) of the dual-hop relay system, a novel two-stage power allocation scheme with non-orthogonal multiple access (NOMA) is proposed. In this scheme, after t…
Low-Complexity QL-QR Decomposition Based Beamforming Design for Two-Way MIMO Relay Networks
Wei Duan, Wei Song, Moon Ho Lee
In this paper, we investigate the optimization problem of joint source and relay beamforming matrices for a twoway amplify-and-forward (AF) multi-input multi-output (MIMO) relay sy…