%0 Journal Article
%T Cooperative Lossy Communications in Unmanned Aerial Vehicle Networks: Age-of-Information with Outage Probability
%+ School of Electronics and Information, Northwestern Polytechnical University
%+ School of Electrical Engineering and Telecommunications (UNSW)
%+ Department of Electrical and Computer Engineering [Houston]
%+ Kyung Hee University (KHU)
%+ Centre for Wireless Communications [University of Oulu] (CWC)
%+ DÃ©partement Mathematical and Electrical Engineering (IMT Atlantique - MEE)
%A Lin, Wensheng
%A Li, Lixin
%A Yuan, Jinhong
%A Han, Zhu
%A Juntti, Markku
%A Matsumoto, Tad
%Z This work was supported in part by the National Natural ScienceFoundation of China (NSFC) under Grant 62001387, in part by the ShanghaiAcademy of Spaceflight Technology (SAST) under Grant SAST2020124, inpart by the Fundamental Research Funds for the Central Universities, in partby NSF under Grants CNS-2107216 and EARS-1839818, in part by Toyota, inpart by the Australian Research Council (ARC) Discovery Projects under GrantDP190101363, in part by the ARC Linkage Project under Grant LP170101196,and in part by the Academy of Finland 6Genesis Flagship under Grant 318927.
%< avec comitÃ© de lecture
%@ 0018-9545
%J IEEE Transactions on Vehicular Technology
%I Institute of Electrical and Electronics Engineers
%V 70
%N 10
%8 2021-10
%D 2021
%R 10.1109/TVT.2021.3103103
%K Unmanned aerial vehicles
%K outage probability
%K Age-of-Information
%K cooperative communications
%K lossy communications
%Z Mathematics [math]/Information Theory [math.IT]Journal articles
%X 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 Shannon's 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.
%G English
%2 https://imt-atlantique.hal.science/hal-03675536/document
%2 https://imt-atlantique.hal.science/hal-03675536/file/Cooperative_Lossy_Communications.pdf
%L hal-03675536
%U https://imt-atlantique.hal.science/hal-03675536
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