A1 Journal article (refereed)
Average Age of Information in Wireless Powered Mobile Edge Computing System (2022)
Liu, Y., Chang, Z., Min, G., & Mao, S. (2022). Average Age of Information in Wireless Powered Mobile Edge Computing System. IEEE Wireless Communications Letters, 11(8), 1585-1589. https://doi.org/10.1109/LWC.2022.3166562
JYU authors or editors
Publication details
All authors or editors: Liu ,Ying; Chang, Zheng; Min, Geyong; Mao, Shiwen
Journal or series: IEEE Wireless Communications Letters
ISSN: 2162-2337
eISSN: 2162-2345
Publication year: 2022
Volume: 11
Issue number: 8
Pages range: 1585-1589
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Publication country: United States
Publication language: English
DOI: https://doi.org/10.1109/LWC.2022.3166562
Publication open access: Not open
Publication channel open access:
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/80825
Abstract
Mobile edge computing (MEC) has been recognized as a promising technique to provide enhanced computation services for low-power wireless devices at the network edge. How to evaluate the timeliness of the task and data delivery is critical for the development of MEC applications. Considering a wireless powered MEC system, in this letter we study the average age of information (AoI), which is a crucial performance metric to measure the freshness of information. Specifically, in the considered system, a sensor node harvests energy from an energy transmitter and transmits computation tasks to the MEC server. The charging time of the sensor node’s capacitor, the waiting time and service time at the MEC server are taken into account when calculating the average AoI. The closed-form expression of the average AoI is obtained accordingly and evaluated through numerical simulations.
Keywords: wireless technology; wireless data transmission; energy; energy harvesting
Free keywords: age of information; wireless power transfer; edge computing; energy harvesting
Contributing organizations
Ministry reporting: Yes
Reporting Year: 2022
JUFO rating: 2