Abstract
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 language | English |
|---|---|
| Pages (from-to) | 1044-1057 |
| Journal | IEEE Transactions on Communications |
| Volume | 68 |
| Issue number | 2 |
| Early online date | 19 Nov 2019 |
| DOIs | |
| Publication status | Published - Feb 2020 |
| Publication type | A1 Journal article-refereed |
Keywords
- Energy efficiency
- mobile device
- DRX
- wake-up radio
- 5G
- optimization
- delay constraint
Publication forum classification
- Publication forum level 2
Access to Document
- Wake-Up Radio based Access in 5G 2019
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