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On the Researches of Mixed User Grouping NOMA Systems

  • Jinqiang Li
  • , Jiaxing Zhang
  • , Hsiao Hwa Chen
  • , Shuyi Chen*
  • , Qing Guo
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • CAS - Institute of Electronics
  • National Cheng Kung University

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

Abstract

This paper introduces the concept of a mixed grouping strategies for NOMA systems, analyzes its advantages over traditional OMA and fixed grouping strategies for NOMA systems, and proposes two feasible mixed grouping algorithms based on genetic algorithm and simulated annealing algorithm to improve system channel capacity. Through simulation verification, we find that the NOMA system with mixed grouping exhibits significant advantages in terms of system capacity and fairness. Furthermore, compared to brute force search algorithms, the proposed mixed grouping algorithms can significantly reduce computational complexity with only minor performance loss. Therefore, it can be concluded that the proposed mixed grouping algorithms strikes a good balance between performance and computational complexity. Additionally, this paper further explores the potential for implementing more complex NOMA system mixed grouping algorithms using machine learning methods in future scenarios.

Original languageEnglish
Title of host publicationWireless and Satellite Systems - 14th EAI International Conference, WiSATS 2024, Proceedings
EditorsHsiao-Hwa Chen, Weixiao Meng
PublisherSpringer Science and Business Media Deutschland GmbH
Pages263-276
Number of pages14
ISBN (Print)9783031862021
DOIs
StatePublished - 2025
Event14th EAI International Conference on Wireless and Satellite Systems, WiSATS 2024 - Harbin, China
Duration: 23 Aug 202425 Aug 2024

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume606 LNICST
ISSN (Print)1867-8211
ISSN (Electronic)1867-822X

Conference

Conference14th EAI International Conference on Wireless and Satellite Systems, WiSATS 2024
Country/TerritoryChina
CityHarbin
Period23/08/2425/08/24

Keywords

  • Genetic algorithms
  • Mixed grouping strategies
  • Non-orthogonal multiple access (NOMA)
  • Simulated annealing algorithms

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