Wake-Up Radio based Access in 5G under Delay Constraints: Modeling and Optimization

Soheil Rostami, Sandra Lagen, Mário Costa, Mikko Valkama, Paolo Dini

Research output: Contribution to journalArticleScientificpeer-review

20 Citations (Scopus)
14 Downloads (Pure)


Recently, the concept of wake-up radio based access has been considered as an effective power saving mechanism for 5G mobile devices. In this article, the average power consumption of a wake-up radio enabled mobile device is analyzed and modeled by using a semi-Markov process. Building on this, a delay-constrained optimization problem is then formulated, to maximize the device energy-efficiency under given latency requirements, allowing the optimal parameters of the wake-up scheme to be obtained in closed form. The provided numerical results show that, for a given delay requirement, the proposed solution is able to reduce the power consumption by up to 40% compared with an optimized discontinuous reception (DRX) based reference scheme.
Original languageEnglish
Pages (from-to)1044-1057
JournalIEEE Transactions on Communications
Issue number2
Early online date19 Nov 2019
Publication statusPublished - Feb 2020
Publication typeA1 Journal article-refereed


  • Energy efficiency
  • mobile device
  • DRX
  • wake-up radio
  • 5G
  • optimization
  • delay constraint

Publication forum classification

  • Publication forum level 2


Dive into the research topics of 'Wake-Up Radio based Access in 5G under Delay Constraints: Modeling and Optimization'. Together they form a unique fingerprint.

Cite this