Completion Time Minimization in Wireless-Powered UAV-Assisted Data Collection System

Zhen Wang, Guopeng Zhang*, Qiu Wang, Kezhi Wang, Kun Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
4 Downloads (Pure)


In unmanned aerial vehicle (UAV)-assisted data collection system, UAVs can be deployed to charge ground terminals (GTs) via wireless power transfer (WPT) and collect data from them via wireless information transmission (WIT). In this letter, we aim to minimize the time required by a UAV via jointly optimizing the trajectory of the UAV and the transmission scheduling for all the GTs. This problem is formulated as a mixed integer nonlinear programming (MINLP) which are difficult to address in general. To this end, we develop an iterative algorithm based on binary search and successive convex optimization (SCO) to solve it. The simulation shows that our proposed solution outperforms the benchmark algorithms.

Original languageEnglish
Article number9347451
Pages (from-to)1954-1958
Number of pages5
JournalIEEE Communications Letters
Issue number6
Early online date4 Feb 2021
Publication statusPublished - Jun 2021


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