Authors: Ghilezan, Silvia 
Kašterović, Simona
Liquori, Luigi
Marinković, Bojan 
Ognjanović, Zoran 
Stefanović, Tamara
Affiliations: Mathematics 
Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: Federating digital contact tracing using structured overlay networks
Journal: Computer Science and Information Systems
Issue Date: 2022
Rank: ~M23
ISSN: 1820-0214
DOI: 10.2298/CSIS210825029G
n this paper, we present a comprehensive, yet simple, extension to the existing systems used for Digital Contact Tracing in Covid-19 pandemic. The ex16 tension, called BubbleAntiCovid19 (BAC19), enables those systems, regardless of their underlying protocol, to enhance their sets of traced contacts and to improve the global fight against pandemic during the phase of opening borders and enabling more traveling. BAC19 is a Structured Overlay Network. Its protocol is inspired by the Chord and Synapse Structured Overlay Networks. We design the architecture of the Overlay Network Federation. We show that the federation can be used as a formal model of Forward Contact Tracing. BAC19 provides a fully exhaustive retrieving procedure thanks to avoiding search during peer churn. Furthermore, we give simulation results for the BAC19 system, the simulator written in Python.
Keywords: Covid-19 | Digital Contact Tracing | Distributed Hash Tables | Structured Overlay Networks | Bluetooth | GPS
Publisher: ComSIS Consortium
Project: Advanced artificial intelligence techniques for analysis and design of system components based on trustworthy BlockChain technology - AI4TrustBC 

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