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 editorsLiu ,Ying; Chang, Zheng; Min, Geyong; Mao, Shiwen

Journal or seriesIEEE Wireless Communications Letters

ISSN2162-2337

eISSN2162-2345

Publication year2022

Volume11

Issue number8

Pages range1585-1589

PublisherInstitute of Electrical and Electronics Engineers (IEEE)

Publication countryUnited States

Publication languageEnglish

DOIhttps://doi.org/10.1109/LWC.2022.3166562

Publication open accessNot 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.


Keywordswireless technologywireless data transmissionenergyenergy harvesting

Free keywordsage of information; wireless power transfer; edge computing; energy harvesting


Contributing organizations


Ministry reportingYes

Reporting Year2022

JUFO rating2


Last updated on 2024-11-03 at 14:30