Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
PSFQ: a reliable transport protocol for wireless sensor networks
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
ESRT: event-to-sink reliable transport in wireless sensor networks
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
Dynamic Clustering for Acoustic Target Tracking in Wireless Sensor Networks
ICNP '03 Proceedings of the 11th IEEE International Conference on Network Protocols
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Wireless Sensor Networks (WSNs) collect data (e.g. temperature, moving, humidity) from several energy-constrained sensor nodes and relay it to a single sink node. Therefore, the energy resource of the sensor nodes should be managed efficiently to prolong network lifetime. A single sink node topology is simple to implement and most of the researches assume a single sink node, but, as the number of sensor node increases, it has disadvantages to cope with some problems. For example, unexpected situations such as node failure or irregular power consumption in bottleneck can cause network partitions and energy-hole problems. In this paper, we assume a multiplesink network, and propose a topology configuration scheme that automatically reconfigure in case of node failures. The performance of the proposed tree configuration scheme is evaluated by simulations.