Random Beamforming in Millimeter-Wave NOMA Networks

被引：236

作者：

Ding, Zhiguo ^{[1
]}

Fan, Pingzhi ^{[2
]}

Poor, H. Vincent ^{[3
]}

机构：

[1] Univ Lancaster, Sch Comp & Commun, Lancaster LA1 4WA, England

[2] Southwest Jiaotong Univ, Inst Mobile Commun, Chengdu 610031, Peoples R China

[3] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

来源：

IEEE ACCESS | 2017年 / 5卷

基金：

美国国家科学基金会; 英国工程与自然科学研究理事会;

关键词：

Non-orthogonal multiple access (NOMA); millimeter wave (mmWave) networks; mmWave-NOMA communications; random beamforming; NONORTHOGONAL MULTIPLE-ACCESS; MIMO-NOMA; PERFORMANCE;

D O I：

10.1109/ACCESS.2017.2673248

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper investigates the coexistence between two key enabling technologies for fifth generation (5G) mobile networks, non-orthogonal multiple access (NOMA), and millimeter-wave (mmWave) communications. Particularly, the application of random beamforming to mmWave-NOMA systems is considered in order to avoid the requirement that the base station know all the users' channel state information. Stochastic geometry is used to characterize the performance of the proposed mmWave-NOMA transmission scheme by using key features of mmWave systems, i.e., that mmWave transmission is highly directional and potential blockages will thin the user distribution. Two random beamforming approaches that can further reduce the system overhead are also proposed, and their performance is studied analytically in terms of sum rates and outage probabilities. Simulation results are also provided to demonstrate the performance of the proposed schemes and verify the accuracy of the developed analytical results.

引用

页码：7667 / 7681

页数：15