Title :
Non-Orthogonal Multiple Access for Multiple-Antenna Relaying Networks
Author :
Jinjin Men ; Jianhua Ge
Author_Institution :
State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´an, China
Abstract :
In this letter, we design non-orthogonal multiple access (NOMA) for multiple-antenna relaying networks. The receive antennas at the mobile users are assumed to adopt maximal ratio combining (MRC), whereas the transmit antenna that maximizes the instantaneous signal-to-noise ratio (SNR) at the relay is selected. The system outage performance is investigated and closed-form expressions for the exact outage probability are derived. Furthermore, we obtain the lower bound of the outage probability. Finally, simulation results are presented to show the correctness of the theoretical analysis and the superiority of NOMA.
Keywords :
antenna arrays; diversity reception; mobile antennas; mobile radio; probability; receiving antennas; relay networks (telecommunication); telecommunication network reliability; transmitting antennas; MRC; NOMA design; SNR; maximal ratio combining; mobile user; multiple-antenna relaying network outage performance; nonorthogonal multiple access design; outage probability lower bound; receiving antenna; signal-to-noise ratio; transmitting antenna; Analytical models; Base stations; Mobile antennas; Mobile communication; Relays; Signal to noise ratio; Transmitting antennas; multiple-antenna; non-orthogonal multiple access; non-orthogonal multiple access,; outage behavior; relaying networks;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2472006
