RT info:eu-repo/semantics/article T1 A comprehensive survey on reinforcement-learning-based computation offloading techniques in Edge Computing Systems A1 Masip-Bruin, Xavi A1 Hortelano Haro, Diego A1 Miguel Jiménez, Ignacio de A1 Durán Barroso, Ramón José A1 Aguado Manzano, Juan Carlos A1 Merayo Álvarez, Noemí A1 Ruiz Pérez, Lidia A1 Asensio, Adrián A1 Fernández Reguero, Patricia A1 Lorenzo Toledo, Rubén Mateo A1 Abril Domingo, Evaristo José K1 Computation offloading K1 Edge computing K1 MEC K1 Multi-Access Edge Computing K1 Reinforcement Learning K1 Deep Reinforcement Learning K1 K1 3304.06 Arquitectura de Ordenadores AB In recent years, the number of embedded computing devices connected to the Internet has exponentially increased. At the same time, new applications are becoming more complex and computationally demanding, which can be a problem for devices, especially when they are battery powered. In this context, the concepts of computation offloading and edge computing, which allow applications to be fully or partially offloaded and executed on servers close to the devices in the network, have arisen and received increasing attention. Then, the design of algorithms to make the decision of which applications or tasks should be offloaded, and where to execute them, is crucial. One of the options that has been gaining momentum lately is the use of Reinforcement Learning (RL) and, in particular, Deep Reinforcement Learning (DRL), which enables learning optimal or near-optimal offloading policies adapted to each particular scenario. Although the use of RL techniques to solve the computation offloading problem in edge systems has been covered by some surveys, it has been done in a limited way. For example, some surveys have analysed the use of RL to solve various networking problems, with computation offloading being one of them, but not the primary focus. Other surveys, on the other hand, have reviewed techniques to solve the computation offloading problem, being RL just one of the approaches considered. To the best of our knowledge, this is the first survey that specifically focuses on the use of RL and DRL techniques for computation offloading in edge computing system. We present a comprehensive and detailed survey, where we analyse and classify the research papers in terms of use cases, network and edge computing architectures, objectives, RL algorithms, decision-making approaches, and time-varying characteristics considered in the analysed scenarios. In particular, we include a series of tables to help researchers identify relevant papers based on specific features, and analyse which scenarios and techniques are most frequently considered in the literature. Finally, this survey identifies a number of research challenges, future directions and areas for further study. PB Elsevier SN 1084-8045 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/62165 UL https://uvadoc.uva.es/handle/10324/62165 LA eng NO Journal of Network and Computer Applications, vol. 216, July 2023, 103669 (artículo de 35 páginas) NO Producción Científica DS UVaDOC RD 14-jun-2024