Optimized Wake-up Scheme with Bounded Delay for Energy-Efficient MTC
| Main Authors: | Soheil Rostami, Sandra Lagen, Mario Costa, Paolo Dini, Mikko Valkama |
|---|---|
| Format: | info Proceeding |
| Terbitan: |
, 2019
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| Online Access: |
https://zenodo.org/record/3889069 |
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 reduces the power consumption of an optimized Discontinuous Reception (DRX) scheme by up to 40% for a given delay requirement.