Survivable Networks: Algorithms for Diverse Routing
Survivable Networks: Algorithms for Diverse Routing
Optimal Physical Diversity Algorithms and Survivable Networks
ISCC '97 Proceedings of the 2nd IEEE Symposium on Computers and Communications (ISCC '97)
Deploying sensor networks with guaranteed capacity and fault tolerance
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
Fault-tolerant deployment with k-connectivity and partial k-connectivity in sensor networks
Wireless Communications & Mobile Computing
Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems
Fault-Tolerant Relay Node Placement in Heterogeneous Wireless Sensor Networks
IEEE Transactions on Mobile Computing
Sensor placement for lifetime maximization in monitoring oil pipelines
Proceedings of the 1st ACM/IEEE International Conference on Cyber-Physical Systems
Overlay routing under geographically correlated failures in distributed event-based systems
OTM'10 Proceedings of the 2010 international conference on On the move to meaningful internet systems: Part II
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Wireless Sensor Networks (WSNs) are prone to failures. To be robust to failures, the network topology should provide alternative routes to the sinks so when failures occur the routing protocol can still offer reliable delivery. We define l-CRC, a new centrality index which measures a node's importance to connectivity and efficient delivery in the network. We then use this centrality index to concentrate on the most important nodes, providing alternative paths around the nodes with high centrality. Varying l-CRC allows us to trade off cost for robustness. We introduce GRASP-ABP, a local search algorithm for initial robust topology design. We evaluate the algorithm empirically in terms of the number of additional nodes it suggests and its runtime. We then evaluate the robustness of the designs against node failures in simulation, and we demonstrate that the centrality-based GRASP-ABP's designs are able to offer reliable delivery, comparable to competitor algorithms, but with fewer additional relays and faster runtime.