Energy-efficient power allocation for hybrid multiple access systems

Ming Zeng, Animesh Yadav, Octavia A. Dobre, H. Vincent Poor

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

2 Scopus citations

Abstract

In this paper, energy-efficient power allocation (PA) is studied for a hybrid system with non- orthogonal multiple access (NOMA) integrated into orthogonal multiple access (OMA). The considered energy efficiency (EE) maximization problem belongs to non-convex fractional functions. To tackle it, the corresponding spectral efficiency maximization problem for a given transmit power is first considered. By changing the variables from power coefficients to user rates, the non-convex problem is transformed into a convex one, for which a closed-form solution is obtained. On this basis, the optimal transmit power is determined to maximize the EE of the system by exploiting the property of pseudo-concave functions. Numerical results are presented to validate the effectiveness of the proposed energy-efficient PA strategy, as well as the superiority of the hybrid MA over OMA in terms of EE.

Original languageEnglish (US)
Title of host publication2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-5
Number of pages5
ISBN (Electronic)9781538643280
DOIs
StatePublished - Jul 3 2018
Event2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 - Kansas City, United States
Duration: May 20 2018May 24 2018

Publication series

Name2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 - Proceedings

Other

Other2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018
CountryUnited States
CityKansas City
Period5/20/185/24/18

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Science Applications
  • Hardware and Architecture

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  • Cite this

    Zeng, M., Yadav, A., Dobre, O. A., & Poor, H. V. (2018). Energy-efficient power allocation for hybrid multiple access systems. In 2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 - Proceedings (pp. 1-5). (2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCW.2018.8403619