Optimal Node Placement and Resource Allocation for UAV Relaying Network

Utilizing unmanned aerial vehicle (UAV) as the relay is an effective technical solution for the wireless communication between ground terminals faraway or obstructed. In this letter, the problems of UAV node placement and communication resource allocation are investigated jointly for a UAV relaying...

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Bibliographic Details
Published inIEEE communications letters Vol. 22; no. 4; pp. 808 - 811
Main Authors Fan, Rongfei, Cui, Jiannan, Jin, Song, Yang, Kai, An, Jianping
Format Journal Article
LanguageEnglish
Published IEEE 01.04.2018
Subjects
Bandwidth
Convex functions
node placement
Optimization
Relays
resource allocation
Resource management
rotary-wing
Throughput
Unmanned aerial vehicle (UAV)
Unmanned aerial vehicles
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ISSN1089-7798
DOI10.1109/LCOMM.2018.2800737

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Summary:Utilizing unmanned aerial vehicle (UAV) as the relay is an effective technical solution for the wireless communication between ground terminals faraway or obstructed. In this letter, the problems of UAV node placement and communication resource allocation are investigated jointly for a UAV relaying system for the first time. Multiple communication pairs on the ground, with one rotary-wing UAV serving as relay, are considered. Transmission power, bandwidth, transmission rate, and UAV's position are optimized jointly to maximize the system throughput. An optimization problem is formulated, which is non-convex. The global optimal solution is achieved by transforming the formulated problem to be a monotonic optimization problem.
ISSN:1089-7798
DOI:10.1109/LCOMM.2018.2800737