Wake-Up Radio based Access in 5G under Delay Constraints: Modeling and Optimization
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Yksityiskohdat
| Alkuperäiskieli | Englanti |
|---|---|
| Julkaisu | IEEE Transactions on Communications |
| DOI - pysyväislinkit | |
| Tila | E-pub ahead of print - 19 marraskuuta 2019 |
| OKM-julkaisutyyppi | A1 Alkuperäisartikkeli |
Tiivistelmä
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.