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A Power Allocation Method for Downlink MUSA

  • Haoran Zhang*
  • , Shaochuan Wu
  • , Qiuyi Sui
  • , Rundong Zuo
  • *Corresponding author for this work
  • Harbin Institute of Technology

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

Abstract

Multi-user shared access (MUSA) is a kind of Non-Orthogonal Multiple Access (NOMA), which is suitable for multi-user transmission and has better channel capacity. This paper analyzes the influencing factors of power allocation on the performance of downlink MUSA from the perspective of sum rate of users and bit error ratio (BER) performance. This paper considers a two-user scenario. A power allocation method based on sum rate of users is proposed and a closed-form expression of the sum rate and power allocation coefficients of users is given in the MUSA downlink scenario. In order to analyze and discuss the impact factors of power allocation on MUSA system performance, extensive simulation results are provided to evaluate the performance of the proposed method under different user weight-ratio scenarios. Through these simulation results, the proposed method is proved to be realistic. Based on this result, a power allocation algorithm for a multi-user scenario is presented in this paper.

Original languageEnglish
Title of host publicationWireless and Satellite Systems - 12th EAI International Conference, WiSATS 2021, Proceedings
EditorsQing Guo, Weixiao Meng, Min Jia, Xue Wang
PublisherSpringer Science and Business Media Deutschland GmbH
Pages709-718
Number of pages10
ISBN (Print)9783030933975
DOIs
StatePublished - 2022
Event12th International Conference on Wireless and Satellite Services, WiSATS 2021 - Virtual, Online
Duration: 31 Jul 20212 Aug 2021

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume410 LNICST
ISSN (Print)1867-8211
ISSN (Electronic)1867-822X

Conference

Conference12th International Conference on Wireless and Satellite Services, WiSATS 2021
CityVirtual, Online
Period31/07/212/08/21

Keywords

  • BER
  • MUSA
  • Power allocation
  • Sum rate

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