Joint Transmit Power and Trajectory Optimization for Two-Way Multi-Hop UAV Relaying Networks

Bing Li, Shengjie Zhao, Rongqing Zhang, Hao Zhang, Hanli Wang, Liuqing Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Unmanned aerial vehicle (UAV) has been regarded as a promising means to supplement ground communications. As flying relays, UAVs can be rapidly and flexibly deployed to assist data transmissions in many practical scenarios. In this paper, we investigate a two-way multi-hop UAV relaying network, where there are two ground users as sources and multiple UAVs as relays to help the two ground sources exchange information. We first provide an efficient two-way multi-hop UAV relaying pattern, which can achieve a data rate of 2/4 data packets per time slot with decode-and-forward (DF) protocol. Then, we further formulate a joint transmit power and trajectory optimization problem for the UAVs in this two-way multi-hop relaying scenario. The formulated problem is non-convex which makes it difficult to solve directly, hence we propose an iterative algorithm to obtain an approximate optimal solution. Numerical results demonstrate that our proposed network achieves significant throughput gains.

Original languageEnglish (US)
Title of host publication2020 IEEE International Conference on Communications Workshops, ICC Workshops 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728174402
DOIs
StatePublished - Jun 2020
Externally publishedYes
Event2020 IEEE International Conference on Communications Workshops, ICC Workshops 2020 - Dublin, Ireland
Duration: Jun 7 2020Jun 11 2020

Publication series

Name2020 IEEE International Conference on Communications Workshops, ICC Workshops 2020 - Proceedings

Conference

Conference2020 IEEE International Conference on Communications Workshops, ICC Workshops 2020
Country/TerritoryIreland
CityDublin
Period6/7/206/11/20

Bibliographical note

Funding Information:
ACKNOWLEDGMENT This work is supported in part by the National Key Research and Development Project under Grant 2017YFE0119300 and 2019YFB2102300, in part by the National Natural Science Foundation of China under Grant 61936014 and 61901302, in part by the Scientific Research Project of Shanghai Science and Technology Committee under Grant 19511103302, in part by the open research fund of National Mobile Communications Research Laboratory, Southeast University (No. 2020D01), and in part by the National Science Foundation under Grant CPS-1932413 and ECCS-1935915.

Publisher Copyright:
© 2020 IEEE.

Keywords

  • Trajectory optimization
  • Two-way multi-hop relaying
  • UAV communications

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