Autonomous Mobile Robots: Refining the Computational Landscape
Autonomous Mobile Robots: Refining the Computational Landscape
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自主移动机器人:完善计算环境
DOI:
10.1109/ipdpsw52791.2021.00091
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
K. Wada
中科院分区:
文献类型:
--
作者:
K. Buchin;P. Flocchini;I. Kostitsyna;T. Peters;N. Santoro;K. Wada
Within distributed computing, the study of distributed systems of identical mobile computational entities, called robots, operating in a Euclidean space is rather extensive. When a robot is activated, it executes a Look-Compute-Move cycle: it takes a snapshot of the environment (Look); with this input, it computes its destination (Compute); and then it moves towards that destination (Move). The choice of the times a robot is activated and how long its cycle lasts is made by a fair (but adversarial) scheduler; three schedulers are usually considered: fully synchronous (Fsync), semi-synchronous (Ssync), and asynchronous (Async).Extensive investigations have been carried out, under all those schedulers, within four models, corresponding to different levels of computational and communication powers of the robots:(the weakest),(the strongest), and two intermediate modelsand. The many results for specific problems have provided insights on the relationships between the models and with respect to the activation schedulers. Recently, a comprehensive characterization of these relationships has been provided with respect to the Fsync and Ssync schedulers; however, in several cases, the results were obtained under some restrictive assumptions (chirality and/or rigidity). In this paper, we improve the characterization by removing those assumptions, providing a refined map of the computational landscape for those robots. We also establish some preliminary results with respect to the Async scheduler.
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