On energy harvesting of hybrid TDMA-NOMA systems

Haitham Al-Obiedollah, Kanapathippillai Cumanan, Alister G. Burr, Jie Tang, Yogachandran Rahulamathavan, Zhiguo DIng, Octavia A. Dobre

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


In this paper, we investigate energy harvesting capabilities of non-orthogonal multiple access (NOMA) scheme integrated with the conventional time division multiple access (TDMA) scheme, which is referred to as hybrid TDMA-NOMA system. In a such hybrid scheme, users are divided into a number of groups, with the total time allocated for transmission is shared between these groups through multiple time slots. In particular, a time slot is assigned to serve each group, whereas the users in the corresponding group are served based on power-domain NOMA technique. Furthermore, simultaneous wireless power and information transfer technique is utilized to simultaneously harvest energy and decode information at each user. Therefore, each user splits the received signal into two parts, namely, energy harvesting part and information decoding part. In particular, we jointly determine the power allocation and power splitting ratios for all users to minimize the transmit power under minimum rate and minimum energy harvesting requirements at each user. Furthermore, this joint design is a non-convex problem in nature. Hence, we employ successive interference cancellation to overcome these non- convexity issues and determine the design parameters (i.e., the power allocations and the power splitting ratios). In simulation results, we demonstrate the performance of the proposed hybrid TDMA-NOMA design and show that it outperforms the conventional TDMA scheme in terms of transmit power consumption.

Original languageEnglish
Title of host publication2019 IEEE Global Communications Conference, GLOBECOM 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728109626
Publication statusPublished - Dec 2019
Event2019 IEEE Global Communications Conference, GLOBECOM 2019 - Waikoloa, United States
Duration: 9 Dec 201913 Dec 2019

Publication series

Name2019 IEEE Global Communications Conference, GLOBECOM 2019 - Proceedings


Conference2019 IEEE Global Communications Conference, GLOBECOM 2019
Country/TerritoryUnited States

Bibliographical note

Funding Information:
The work of H. Al-Obiedollah was supported by The Hashemite University, Jordan. The work of K. Cumanan, A. Burr and Z. Ding was supported by H2020-MSCA-RISE-2015 under grant no: 690750. The work of Y. Rahulamathavan was supported by UK-India Education Research Initiative (UKIERI) through grant UGC-UKIERI-2016-17-019.

Publisher Copyright:
© 2019 IEEE.


  • Energy harvesting
  • Hybrid TDMA-NOMA
  • Non-orthogonal multiple access (NOMA)
  • Simultaneous wireless power and information transfer (SWIPT)
  • Time division multiple access (TDMA)

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