Journal
AD HOC NETWORKS
Volume 80, Issue -, Pages 130-141Publisher
ELSEVIER
DOI: 10.1016/j.adhoc.2018.06.004
Keywords
Unmanned Aerial Vehicles; Videostreaming; HetNets; Drones
Funding
- US National Science Foundation [CNS-1618727]
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This article addresses the problem of delay mitigation for video streaming applications in congested cellular macro-cells by using a mobile micro-cell mounted on an Unmanned Aerial Vehicle (UAV). Small-scale UAVs are at a mature stage of development and can carry lightweight commercial micro-cells with small form factor. The mobile micro-cell is used to offload users from a congested macro-cell to optimize the bandwidth usage of video streaming applications. The paper proposes algorithms and comprehensive design criteria for user offload selection (selecting what users need to be offloaded to the micro-cell) and drone positioning (selecting the position of the UAV that minimizes the network delay). The effectiveness of the proposed criteria is evaluated through extensive performance analysis. We show that the performance increases consistently in terms of bandwidth requests mitigation and average delay reduction under different system configurations. (C) 2018 Elsevier B.V. All rights reserved.
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