Optimized relay placement to federate segments in wireless sensor networks
IEEE Journal on Selected Areas in Communications
Review: From wireless sensor networks towards cyber physical systems
Pervasive and Mobile Computing
Optimized relay placement for WSNs federation
Wireless Communications & Mobile Computing
A least-movement topology repair algorithm for partitioned wireless sensor-actor networks
International Journal of Sensor Networks
An effective approach for tolerating simultaneous failures in wireless sensor and actor networks
Proceedings of the first ACM international workshop on Mission-oriented wireless sensor networking
Towards augmented connectivity with delay constraints in WSN federation
International Journal of Ad Hoc and Ubiquitous Computing
Handling large-scale node failures in mobile sensor/robot networks
Journal of Network and Computer Applications
Quantifying connectivity in wireless sensor networks with grid-based deployments
Journal of Network and Computer Applications
Efficient deployment of wireless sensor networks targeting environment monitoring applications
Computer Communications
Communication restoration within wireless sensor networks
Proceedings of the 10th International Conference on Advances in Mobile Computing & Multimedia
On optimal connectivity restoration in segmented sensor networks
EWSN'13 Proceedings of the 10th European conference on Wireless Sensor Networks
An adaptive connectivity restoration algorithm for wireless sensor and actor networks
International Journal of Autonomous and Adaptive Communications Systems
Proceedings of the twenty-fifth annual ACM symposium on Parallelism in algorithms and architectures
Application-centric recovery algorithm for wireless sensor and actor networks
International Journal of Communication Networks and Distributed Systems
Towards augmenting federated wireless sensor networks in forestry applications
Personal and Ubiquitous Computing
Computer Networks: The International Journal of Computer and Telecommunications Networking
Detection and replacement of a failing node in the wireless sensors networks
Computers and Electrical Engineering
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Recent years have witnessed a growing interest in applications of wireless sensor and actor networks (WSANs). In these 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 interactor coordination. Therefore, maintaining a connected interactor network is critical to the effectiveness of WSANs. However, WSANs often operate unattended in harsh environments where actors can easily fail or get damaged. An actor failure may lead to partitioning the interactor network and thus hinder the fulfillment of the application requirements. In this paper, we present DARA, a Distributed Actor Recovery Algorithm, which opts to efficiently restore the connectivity of the interactor network that has been affected by the failure of an actor. Two variants of the algorithm are developed to address 1- and 2-connectivity requirements. The idea is to identify the least set of actors that should be repositioned in order to reestablish a particular level of connectivity. 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.