University of Oulu

W. Lin, L. Li, J. Yuan, Z. Han, M. Juntti and T. Matsumoto, "Cooperative Lossy Communications in Unmanned Aerial Vehicle Networks: Age-of-Information with Outage Probability," in IEEE Transactions on Vehicular Technology, doi: 10.1109/TVT.2021.3103103

Cooperative lossy communications in unmanned aerial vehicle networks : age-of-information with outage probability

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Author: Lin, Wensheng1; Li, Lixin1; Yuan, Jinhong2;
Organizations: 1School of Electronics and Information, Northwestern Polytechnical University, Xi’an, Shaanxi 710129, China
2School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, NSW 2052, Australia
3Department of Electrical and Computer Engineering in the University of Houston, Houston, TX 77004 USA
4Department of Computer Science and Engineering, Kyung Hee University, Seoul, South Korea, 446-701
5Centre for Wireless Communications, University of Oulu, 90014 Oulu, Finland
6School of Information Science, Japan Advanced Institute of Science and Technology, Ishikawa, Japan 923-1292, Japan
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 2.4 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2021
Publish Date: 2021-08-23


This paper analyzes the robustness and timeliness for cooperative lossy communications in unmanned aerial vehicle (UAV) networks. The analytical framework consists of two steps: 1) calculating the outage probability, and 2) characterizing the Age-of-Information (AoI) for a given outage probability. Initially, we determine the outage probability based on the Shannons lossy source-channel separation theorem. Numerical results indicate that joint decoding reduces the outage probability, and the system can achieve higher diversity order for less stringent distortion requirement. Then, we derive a closed-form expression of the lower bound on the average AoI for the communication system where outage events are constrained to an acceptable level. Moreover, we conduct a series of simulations for verifying the lower bound on the average AoI and evaluating the impact of UAV locations on the average AoI. It is demonstrated that the lower bound is tight when the server utilization ratio is either relatively busy or idle. For the case with a relatively large outage probability, we propose an intermittent transmission scheme to refine the AoI performance without extra energy consumption. The effectiveness of the intermittent transmission scheme for reducing the average AoI is verified by both the simulations and the lower bound analysis.

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Series: IEEE transactions on vehicular technology
ISSN: 0018-9545
ISSN-E: 1939-9359
ISSN-L: 0018-9545
Volume: Early Access
Issue: Early Access
Pages: 1 - 16
DOI: 10.1109/TVT.2021.3103103
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported in part by National Natural Science Foundation of China (NSFC) under Grant 62001387, in part by Shanghai Academy of Spaceflight Technology (SAST) under Grant SAST2020124, in part by the Fundamental Research Funds for the Central Universities, in part by NSF CNS-2107216 and EARS-1839818, in part by Toyota, in part by the Australian Research Council (ARC) Discovery Projects under Grant DP190101363, in part by the ARC Linkage Project under Grant LP170101196, and in part by the Academy of Finland 6Genesis Flagship (Grant 318927).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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