Maximizing connected coverage via controlled actor relocation in wireless sensor and actor networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Clustering of wireless sensor and actor networks based on sensor distribution and connectivity
Journal of Parallel and Distributed Computing
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Recovery from multiple simultaneous failures in wireless sensor networks using minimum Steiner tree
Journal of Parallel and Distributed Computing
Coverage-aware connectivity restoration in mobile sensor networks
Journal of Network and Computer Applications
Coverage-aware connectivity restoration in mobile sensor networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Application-centric connectivity restoration algorithm for wireless sensor and actor networks
GPC'11 Proceedings of the 6th international conference on Advances in grid and pervasive computing
Localized motion-based connectivity restoration algorithms for wireless sensor and actor networks
Journal of Network and Computer Applications
Optimized relay node placement for connecting disjoint wireless sensor networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Connectivity restoration in delay-tolerant sensor networks using game theory
International Journal of Ad Hoc and Ubiquitous Computing
Handling large-scale node failures in mobile sensor/robot networks
Journal of Network and Computer Applications
Communication restoration within wireless sensor networks
Proceedings of the 10th International Conference on Advances in Mobile Computing & Multimedia
Application-centric recovery algorithm for wireless sensor and actor networks
International Journal of Communication Networks and Distributed Systems
Network Partitioning Recovery Mechanisms in WSANs: a Survey
Wireless Personal Communications: An International Journal
Formal development of wireless sensor-actor networks
Science of Computer Programming
Computer Networks: The International Journal of Computer and Telecommunications Networking
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There has been an increased interest in applications of wireless sensor and actor networks (WSANs) in recent years. In such applications, a set of mobile actor nodes are deployed in addition to sensors in order to collect sensors' data and perform specific tasks in response to detected events/objects. In most scenarios actors have to respond collectively which requires an inter-actor coordination. Therefore, maintaining a connected inter-actor network is crucial to the effectiveness of WSANs. However, WSANs often operate unattended in harsh environments where actors can easily fail or get damaged. Due to such failures an actor will be unable to communicate with its neighbors which may lead to partitioning the inter-actor network. In this paper we present DARA; a Distributed Actor Recovery Algorithm, which opts to efficiently restore the connectivity of the inter-actor network that has been affected by the failure of an actor. The idea is to identify the least set of actors that should be repositioned in order to establish connectivity among disjoint network partitions. DARA strives to localize the scope of the recovery process and minimize the movement overhead imposed on the involved actors. The effectiveness of DARA is validated through simulation experiments.