TY - GEN
T1 - User Fairness Non-orthogonal Multiple Access (NOMA) in Millimeter-Wave Communications
AU - Zhu, Lipeng
AU - Zhang, Jun
AU - Xiao, Zhenyu
AU - Cao, Xianbin
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - In this paper, we explore non-orthogonal multiple access in millimeter-Wave communications (mmWave-NOMA). A downlink cellular is considered, where a base station (BS) equipped with a single radio frequency (RF) chain and large antenna arrays serves multiple users with a single antenna. Analog beamforming is utilized to reduce the hardware cost and power consumption. Particularly, we consider the user fairness and formulate a joint beamforming and power allocation problem, which is non-convex. In the propose sub-optimal solution, the closed-form optimal power allocation is first obtained under any fixed beam pattern. Then an approximatively optimal beamforming vector is designed according to the sparsity in the angle domain of the mmWave channel. The achievable rate performance of mmWave-NOMA system is shown to be significantly improved by the proposed approach, compared with the conventional mmWave orthogonal multiple access (mmWave-OMA) system.
AB - In this paper, we explore non-orthogonal multiple access in millimeter-Wave communications (mmWave-NOMA). A downlink cellular is considered, where a base station (BS) equipped with a single radio frequency (RF) chain and large antenna arrays serves multiple users with a single antenna. Analog beamforming is utilized to reduce the hardware cost and power consumption. Particularly, we consider the user fairness and formulate a joint beamforming and power allocation problem, which is non-convex. In the propose sub-optimal solution, the closed-form optimal power allocation is first obtained under any fixed beam pattern. Then an approximatively optimal beamforming vector is designed according to the sparsity in the angle domain of the mmWave channel. The achievable rate performance of mmWave-NOMA system is shown to be significantly improved by the proposed approach, compared with the conventional mmWave orthogonal multiple access (mmWave-OMA) system.
KW - Non-orthogonal multiple access
KW - analog beamforming
KW - millimeter-wave communications
KW - mmWave-NOMA
KW - power allocation
KW - user fairness
UR - https://www.scopus.com/pages/publications/85064158940
U2 - 10.1109/ICCChinaW.2018.8674488
DO - 10.1109/ICCChinaW.2018.8674488
M3 - 会议稿件
AN - SCOPUS:85064158940
T3 - 2018 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2018
SP - 80
EP - 84
BT - 2018 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2018
Y2 - 16 August 2018 through 18 August 2018
ER -