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A Novel Distributed Algorithm for Phase Synchronization in Unmanned Aerial Vehicles

Authors :
Mohammadamin Baniasadi
Aliazam Abbasfar
Georges Kaddoum
Ali Pourranjbar
Source :
IEEE Communications Letters. 24:2260-2264
Publication Year :
2020
Publisher :
Institute of Electrical and Electronics Engineers (IEEE), 2020.

Abstract

In this letter, the problem of phase synchronization for a group of drones acting as relays to build a connection between a base station (BS) and a ground receiver (GR) is investigated. The received signal strength (RSS) of the GR significantly degrades due to phase-mismatch caused by mobility of the drones. To tackle this challenge, a distributed synchronization algorithm that utilizes a few feedbacks is proposed and its convergence is proved for a specified bound on the frequency deviation. To evaluate the performance of the proposed method, the received signal strength (RSS) of the GR is presented assuming different deviation frequencies and number of drones. Provided simulation results demonstrate that our proposed method is capable of synchronizing the drones’ phases for all the considered deviation frequencies and number of drones. Moreover, the proposed method outperforms the existing cumulative positive one-bit feedback based approaches in terms of convergence speed and RSS, which renders the proposed algorithm viable for practical deployment.

Details

ISSN :
23737891 and 10897798
Volume :
24
Database :
OpenAIRE
Journal :
IEEE Communications Letters
Accession number :
edsair.doi...........1b9b7c15d7f45bb2d3259f151ee292aa
Full Text :
https://doi.org/10.1109/lcomm.2020.3002859