Robust Hybrid Beam-Forming for Non-Orthogonal Multiple Access in Massive MIMO Downlink

被引：5

作者：

Alraddady, Fahad ^{[1
]}

Ahmed, Irfan ^{[2
]}

Habtemicail, Filmon ^{[2
]}

机构：

[1] Taif Univ, Coll Comp & Informat Technol, Dept Comp Engn, POB 11099, At Taif 21944, Saudi Arabia

[2] Higher Coll Technol, Elect Engn Dept, Ruwais Campus, Abu Dhabi 12389, U Arab Emirates

来源：

ELECTRONICS | 2022年 / 11卷 / 01期

关键词：

low complexity hybrid precoding; NOMA; mmWave mMIMO; POWER ALLOCATION; BEAMSPACE-MIMO; RESOURCE-ALLOCATION; NOMA; USER; SELECTION; SYSTEMS;

D O I：

10.3390/electronics11010075

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 presents hybrid precoding for a non-orthogonal multiple access (NOMA) transmission scheme in a millimeter wave (mmWave) massive MIMO (mMIMO) downlink. In hybrid precoding, the analog precoder is obtained by the orthogonalization of the users' channel vectors to minimize inter-beam interference. The digital precoder consists of a zero-forcing precoder to minimize inter-user interference. In order to break the barrier of one user per beam, we utilize the NOMA within the beam for power domain multiplexing among users. Simulation results show the proposed scheme's efficacy compared to the state-of-the-art schemes and provide 1.48 times better sum-rate performance at 10 dB received SNR.

引用

页数：17

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