Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Topology management in ad hoc networks
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
Energy-Efficient Communication Protocol for Wireless Microsensor Networks
HICSS '00 Proceedings of the 33rd Hawaii International Conference on System Sciences-Volume 8 - Volume 8
Adaptive clock synchronization in sensor networks
Proceedings of the 3rd international symposium on Information processing in sensor networks
A message ferrying approach for data delivery in sparse mobile ad hoc networks
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
Using mobile relays to prolong the lifetime of wireless sensor networks
Proceedings of the 11th annual international conference on Mobile computing and networking
Data delivery in fragmented wireless sensor networks using mobile agents
Proceedings of the 10th ACM Symposium on Modeling, analysis, and simulation of wireless and mobile systems
A Distributed Connectivity Restoration Algorithm in Wireless Sensor and Actor Networks
LCN '07 Proceedings of the 32nd IEEE Conference on Local Computer Networks
Energy-efficient deployment of Intelligent Mobile sensor networks
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Movement control algorithms for realization of fault-tolerant ad hoc robot networks
IEEE Network: The Magazine of Global Internetworking
Review: A survey on routing techniques in underwater wireless sensor networks
Journal of Network and Computer Applications
A least-movement topology repair algorithm for partitioned wireless sensor-actor networks
International Journal of Sensor Networks
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
Journal of Network and Computer Applications
Network Partitioning Recovery Mechanisms in WSANs: a Survey
Wireless Personal Communications: An International Journal
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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Mobile sensor networks rely heavily on inter-sensor connectivity for collection of data. Nodes in these networks monitor different regions of an area of interest and collectively present a global overview of some monitored activities or phenomena. A failure of a sensor leads to loss of connectivity and may cause partitioning of the network into disjoint segments. A number of approaches have been recently proposed that pursue node relocation in order to restore connectivity. However, these approaches tend to ignore the possible loss of coverage in some areas, either due to the failure itself or due to the connectivity-limited focus of the recovery. This paper fills this gap by addressing the connectivity and coverage concerns in an integrated manner. A novel coverage conscious connectivity restoration (C^3R) algorithm is presented. C^3R involves one or multiple neighbors of the failed node to recover from the failure. Each neighbor temporarily relocates to substitute the failed node, one at a time, and then returns back to its original location. This leads to intermittent connectivity and monitoring of all the originally covered spots. This paper also presents energy-centric optimized recovery algorithm (ECR), an optimized version of C^3R that is geared for energy efficiency. Both C^3R and ECR are validated through simulation. The simulation results confirm the effectiveness of these approaches.