Power Allocation for Downlink of Non-orthogonal Multiple Access System via Genetic Algorithm

Xinli Ma, Juan Wu, Zhenyu Zhang, Zhongshan Zhang, Xiyuan Wang, Xiaomeng Chai, Linglong Dai, Xiaoming Dai*

*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

Non-orthogonal multiple access (NOMA) is a promising technology in future communication systems due to high spectral efficiency. In this paper, we propose an efficient power allocation method based on the genetic algorithm (GA) to solve the non-linear optimization problem for maximizing the achievable sum rate under a total power constraint and the users’ quality of service (QoS) in the downlink NOMA systems. Different power allocation coefficients can be obtained with different objective functions and optimization criteria. Simulation results demonstrate that the NOMA systems with power allocation using GA can achieve better performance than the orthogonal multiple access (OMA) systems in terms of the achievable sum rate.

Original languageEnglish
Title of host publication5G for Future Wireless Networks - 1st International Conference, 5GWN 2017, Proceedings
EditorsZhiyong Feng, Yonghui Li, Victor C.M. Leung, Keping Long, Haijun Zhang, Zhongshan Zhang
PublisherSpringer Verlag
Pages459-470
Number of pages12
ISBN (Print)9783319728223
DOIs
Publication statusPublished - 2018
Externally publishedYes
Event1st International Conference on 5G for Future Wireless Networks, 5GWN 2017 - Beijing, China
Duration: 21 Apr 201723 Apr 2017

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume211
ISSN (Print)1867-8211

Conference

Conference1st International Conference on 5G for Future Wireless Networks, 5GWN 2017
Country/TerritoryChina
CityBeijing
Period21/04/1723/04/17

Keywords

  • Genetic algorithm
  • Non-orthogonal multiple access (NOMA)
  • Power allocation
  • Quality of service (QoS)

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