User-Pairing Scheme in NOMA Systems: A PSO-Based Approach

Antonino Masaracchia*, Long D. Nguyen, Trung Q. Duong, Daniel B. da Costa, Thuong Le-Tien

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


Non-orthogonal multiple access (NOMA) is considered a promising technology for improving the spectral efficiency in fifth generation communication systems. In contrast to orthogonal multiple access (OMA), NOMA allows to allocate one frequency channel to multiple users at the same time within the same cell. Basically, this is possible through power-domain superposition coding (SC) multiplexing at transmitter and successive interference cancellation (SIC) at receiver. For this reason, either an optimal power allocation scheme and an optimal user-aggregation policy result to have a key role on NOMA systems, especially in power constrained scenarios like disaster communications. In this paper, a particle swarm optimization (PSO)-based approach for user aggregation in NOMA systems is presented. The efficiency of this approach in finding the optimal aggregation scheme which require the minimum transmission power, maintaining the quality of service (QoS) constraint of each user, is evaluated through simulations, providing comments and remarks about the obtained results.

Original languageEnglish
Title of host publicationIndustrial Networks and Intelligent Systems - 5th EAI International Conference, INISCOM 2019, Proceedings
EditorsTrung Quang Duong, Nguyen-Son Vo, Loi K. Nguyen, Quoc-Tuan Vien, Van-Dinh Nguyen
Number of pages8
ISBN (Print)9783030301484
Publication statusPublished - 2019
Event5th EAI International Conference on Industrial Networks and Intelligent Systems, INISCOM 2019 - Ho Chi Minh City, Viet Nam
Duration: 19 Aug 201919 Aug 2019

Publication series

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


Conference5th EAI International Conference on Industrial Networks and Intelligent Systems, INISCOM 2019
Country/TerritoryViet Nam
CityHo Chi Minh City


  • NOMA
  • PSO
  • Sub-channel mapping
  • User-pairing

ASJC Scopus subject areas

  • Computer Networks and Communications


Dive into the research topics of 'User-Pairing Scheme in NOMA Systems: A PSO-Based Approach'. Together they form a unique fingerprint.

Cite this