University of Oulu

S. Rostami, P. Kela, K. Leppanen and M. Valkama, "Wake-up Radio-Based 5G Mobile Access: Methods, Benefits, and Challenges," in IEEE Communications Magazine, vol. 58, no. 7, pp. 14-20, July 2020, doi: 10.1109/MCOM.001.1900614

Wake-up radio-based 5G mobile access : methods, benefits, and challenges

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Author: Rostami, Soheil1; Kela, Petteri2; Leppanen, Kari3;
Organizations: 1Huawei Technologies, Finland
2Nokia Bell Labs, Finland
3University of Oulu, Finland
4Tampere University, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.2 MB)
Persistent link:
Language: English
Published: Institute of Electrical and Electronics Engineers, 2020
Publish Date: 2020-10-09


Future mobile networks will enable new use cases, requiring further enhanced data rates, latency, coverage, capacity, and reliability. In this article, to emphasize sustainable energy consumption and improved device battery lifetime, the concept, benefits, and challenges of utilizing wake-up radio-based access in 5G networks are reviewed and discussed. To this end, the operating principle and associated wake-up signal structures are first reviewed, together with the corresponding power consumption and buffering delay trade-offs. Then the applicability of wake-up methods at mmWave bands and beamforming systems is addressed and highlighted. Additionally, an energy-efficient mobility management procedure for wake-up radio-based devices is described and demonstrated, utilizing narrowband uplink reference signals. Overall, the article provides an overview of wake-up-based access in 5G systems as a promising power-saving mechanism, and discusses the associated prospects, benefits, and challenges.

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Series: IEEE communications magazine
ISSN: 0163-6804
ISSN-E: 1558-1896
ISSN-L: 0163-6804
Volume: 58
Issue: 7
Pages: 14 - 20
DOI: 10.1109/MCOM.001.1900614
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
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