IEEE Consumer Electronics Magazine - January/February 2023 - 43

Feature Article: An SDN-Based Framework in UAV Networks
An SDN-Based
Framework for Load
Balancing and Flight
Control in UAV Networks
Zohaib Latif and Choonhwa Lee
Hanyang University
Kashif Sharif and Fan Li
Beijing Institute of Technology
Saraju P. Mohanty
University of North Texas
Abstract-Unmanned aerial vehicles (UAVs) are gaining tremendous attention due to their
flying nature. To complete the task efficiently, multi-UAV systems are a good choice as
compared to a single UAV system. However, multi-UAV systems introduce issues, such as
high dynamics, limited battery, and frequent changes in topology. Software control is
required to solve these issues. Thus, software-defined networking (SDN) is an excellent
candidate to separate control logic from forwarding elements and provide high-level
programming abstractions. However, due to architectural constraints, applying SDN
introduces some new challenges, including uneven load on multiple links between source
and destination. This irregular load also affects UAVs' battery consumption, necessitating
an adequate solution to meet these challenges fully. This article proposes an SDN-based
framework for UAV elements that monitors frequent changes in the network topology.
Based on this monitoring, an algorithm is designed, which distributes traffic load evenly on
different links of multi-UAV systems. UAV networks have limited resources; therefore,
battery limitations are also considered, and traffic is shifted to a path where elements
have more battery. Moreover, a flight control mechanism is proposed to avoid collisions
Digital Object Identifier 10.1109/MCE.2022.3200174
Date ofpublication 19 August 2022; date ofcurrent version 6
December 2022.
January/February 2023
Published by the IEEE Consumer Technology Society
2162-2248 ß 2022 IEEE
43

IEEE Consumer Electronics Magazine - January/February 2023

Table of Contents for the Digital Edition of IEEE Consumer Electronics Magazine - January/February 2023

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