distributed systems
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Automatica ◽  
2022 ◽  
Vol 136 ◽  
pp. 110025
Nicola Forti ◽  
Lin Gao ◽  
Giorgio Battistelli ◽  
Luigi Chisci

2022 ◽  
Vol 7 ◽  
pp. e779
Davide Berardi ◽  
Saverio Giallorenzo ◽  
Jacopo Mauro ◽  
Andrea Melis ◽  
Fabrizio Montesi ◽  

Microservices is an emerging paradigm for developing distributed systems. With their widespread adoption, more and more work investigated the relation between microservices and security. Alas, the literature on this subject does not form a well-defined corpus: it is spread over many venues and composed of contributions mainly addressing specific scenarios or needs. In this work, we conduct a systematic review of the field, gathering 290 relevant publications—at the time of writing, the largest curated dataset on the topic. We analyse our dataset along two lines: (a) quantitatively, through publication metadata, which allows us to chart publication outlets, communities, approaches, and tackled issues; (b) qualitatively, through 20 research questions used to provide an aggregated overview of the literature and to spot gaps left open. We summarise our analyses in the conclusion in the form of a call for action to address the main open challenges.

2022 ◽  
Steven Massey ◽  
Charles Brechtel ◽  
Irene Woerner ◽  
Zack Daniels

2022 ◽  
Vol 20 (1) ◽  
pp. 82-91
Vinicius Pfeifer ◽  
William Filisbino Passini ◽  
William Fernandes Dorante ◽  
Ivan Rizzo Guilherme ◽  
Frank Jose Affonso

Electronics ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 111
Antonella Comuniello ◽  
Alessio De Angelis ◽  
Antonio Moschitta ◽  
Paolo Carbone

Many distributed systems that perform indoor positioning are often based on ultrasound signals and time domain measurements exchanged between low-cost ultrasound transceivers. Synchronization between transmitters and receivers is usually needed. In this paper, the use of BLE technology to achieve time synchronization by wirelessly triggered ultrasound transceivers is analyzed. Building on a previous work, the proposed solution uses BLE technology as communication infrastructure and achieves a level of synchronization compatible with Time of Flight (ToF)-based distance estimations and positioning. The proposed solution was validated experimentally. First, a measurement campaign of the time-synchronization delay for the adopted embedded platforms was carried out. Then, ToF-based distance estimations and positioning were performed. The results show that an accurate and low-cost ToF-based positioning system is achievable, using ultrasound transmissions and triggered by BLE RF transmissions.

2021 ◽  
Vol 13 (2) ◽  
pp. 7-13
Delia Cerlinca ◽  
Sergiu Spinu ◽  

Department of Mechanics and Technologies, Stefan cel Mare University of Suceava; Integrated Center for Research, Development and Innovation in Advanced Materials, Nanotechnologies, and Distributed Systems for Fabrication and Control (MANSiD), Stefan cel Mare University, Suceava, Romania

2021 ◽  
Vol 25 (2) ◽  
pp. 435-468
Dániel Balázs Rátai ◽  
Zoltán Horváth ◽  
Zoltán Porkoláb ◽  
Melinda Tóth

Atomicity, consistency, isolation and durability are essential properties of many distributed systems. They are often abbreviated as the ACID properties. Ensuring ACID comes with a price: it requires extra computing and network capacity to ensure that the atomic operations are done perfectly, or they are rolled back. When we have higher requirements on performance, we need to give up the ACID properties entirely or settle for eventual consistency. Since the ambiguity of the order of the events, such algorithms can get very complicated since they have to be prepared for any possible contingencies. Traquest model is an attempt for creating a general concurrency model that can bring the ACID properties without sacrificing a too significant amount of performance.

Fenggang Lai ◽  
Pan Zhang ◽  
Ruiying Cheng ◽  
Peng Xu

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