Analog Beamforming mm-Wave Two User Non-Orthogonal Multiple Access

S. Sumathi, T. K. Ramesh, Zhiguo Ding

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations


In this paper, the authors aim to design analog beam forming weight vector for two user down link non-orthogonal multiple access (NOMA) scenario. Millimeter wave (mm-wave) channel with one line-of-sight (LOS) path and multiple non line-of-sight (NLOS) paths is considered. The components of beamforming vector vary only in phase whereas their magnitudes are same. This restriction guarantees that power amplifiers need not be designed with different power amplification factors, thereby minimizing the complexity of power amplifier design. In this work, two users located at different angle of departure (AoD) with different gains are considered. The weight vector is designed aiming to minimize the total power requirement. Simulation results show that the proposed approach requires less power with minimum complexity compared with the time division multiple access (TDMA) for the same spectral efficiency requirements.

Original languageBritish English
Title of host publicationUbiquitous Communications and Network Computing - 4th EAI International Conference, UBICNET 2021, Proceedings
EditorsNavin Kumar, M. Vinodhini, Ranga Rao Venkatesha Prasad
PublisherSpringer Science and Business Media Deutschland GmbH
Number of pages11
ISBN (Print)9783030792756
StatePublished - 2021
Event4th International Conference on Ubiquitous Communications and Network Computing, UBICNET 2021 - Virtual, Online
Duration: 13 Mar 202113 Mar 2021

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
ISSN (Print)1867-8211
ISSN (Electronic)1867-822X


Conference4th International Conference on Ubiquitous Communications and Network Computing, UBICNET 2021
CityVirtual, Online


  • Analog beamforming
  • mm-wave channel
  • NOMA
  • Power minimization
  • Semi-definite relaxation
  • Spectral efficiency


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