An Energy-Efficient Approach Towards Power Allocation in Non-Orthogonal Multiple Access Full-Duplex AF Relay Systems

Ankit Gupta, Sudip Biswas, Keshav Singh, Tharmalingam Ratnarajah, Mathini Sellathurai

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

Abstract

An optimization problem for non-orthogonal multiple access full-duplex (FD) amplify-and-forward relay system is formulated to maximize the system energy efficiency, subject to a total transmit power. By introducing a variable transformation, the original non-convex fractional problem is transformed into a tractable one via successive convex approximation approach and Dinkelbach's method. Further, the near-optimal solution is obtained through Lagrangian dual decomposition. Numerical results show that the proposed algorithm in FD mode significantly outperforms conventional orthogonal multiple access and sum rate maximization schemes.

Original languageEnglish
Title of host publication2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
PublisherIEEE
ISBN (Electronic)9781538635124
DOIs
Publication statusPublished - 27 Aug 2018
Event19th IEEE International Workshop on Signal Processing Advances in Wireless Communications 2018 - Kalamata, Greece
Duration: 25 Jun 201828 Jun 2018

Publication series

NameInternational Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
PublisherIEEE
ISSN (Electronic)1948-3252

Conference

Conference19th IEEE International Workshop on Signal Processing Advances in Wireless Communications 2018
Abbreviated titleSPAWC 2018
CountryGreece
CityKalamata
Period25/06/1828/06/18

Keywords

  • energy efficiency
  • full-duplex
  • non-convex optimization
  • Non-orthogonal multiple access
  • resource allocation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Information Systems

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    Gupta, A., Biswas, S., Singh, K., Ratnarajah, T., & Sellathurai, M. (2018). An Energy-Efficient Approach Towards Power Allocation in Non-Orthogonal Multiple Access Full-Duplex AF Relay Systems. In 2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) [8445898] (International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)). IEEE. https://doi.org/10.1109/SPAWC.2018.8445898