Optimized Wake-up Scheme with Bounded Delay for Energy-Efficient MTC
| Main Authors: | Rostami, Soheil, Lagen, Sandra, Costa, Mário, Dini, Paolo, Valkama, Mikko |
|---|---|
| Format: | Proceeding Journal |
| Bahasa: | eng |
| Terbitan: |
, 2019
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/3627120 |
Daftar Isi:
- The limitations of state-of-the-art cellular modems prevent achieving low-power and low-latency Machine Type Communications (MTC) based on current power saving mechanisms alone. Recently, the concept of wake-up scheme has been proposed to enhance battery lifetime of 5G devices, while reducing the buffering delay. The existing wake-up algorithms use static operational parameters that are determined by the radio access network at the start of the user’s session. In this paper, the average power consumption of the wake-up enabled MTC UE is modeled by using a semi-Markov process and then optimized through a delay-constrained optimization problem, by which the optimal wake-up cycle is obtained in closed form. Numerical results show that the proposed solution improves the power consumption of an optimized DRX scheme by up to 40% for a given delay requirement. The numerical results show that the proposed solution, as compared to an optimized discontinuous reception (DRX)-based reference scheme, can improve power consumption by up to 40% for a given delay requirement.
- Grant numbers : grant TEC2017- 88373-R (5G-REFINE) and Generalitat de Catalunya grant 2017 SGR 1195.