Energy-Efficient Self-Organization

4.7 Conclusion

We have presented a new scalable algorithm, termed SCARE, for self-configuration and adaptive reconfiguration in dense sensor networks. The proposed approach distributes the set of nodes into subsets of coordinator and non-coordinator nodes. It exploits the redundancy inherent in these networks to maintain coverage in the presence of node failure, as well as to prolong the network lifetime. We have presented a novel node replacement strategy that allows SCARE to use non-coordinator nodes to replace coordinator nodes that fail. We have presented simulation results to highlight the advantages of SCARE over a previously proposed topology management scheme Span for ad hoc networks.