A coverage-preserving node scheduling scheme for large wireless sensor networks
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
PEAS: A Robust Energy Conserving Protocol for Long-lived Sensor Networks
ICDCS '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
IEEE Transactions on Computers
Integrated coverage and connectivity configuration for energy conservation in sensor networks
ACM Transactions on Sensor Networks (TOSN)
Error analysis of localization systems for sensor networks
Proceedings of the 13th annual ACM international workshop on Geographic information systems
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Area coverage problem is one of the key issues to prolong a wireless sensor network lifetime. It is based on selecting as few active nodes as possible from all deployed nodes while maintaining sufficient sensing coverage of the monitored region. Several area coverage protocols have been proposed, most of them assume the availability of accurate information about node locations and sensing ranges. Relaxing these conservative assumptions might impact the performance of area coverage protocols. In this paper, the authors study the impact of location errors, irregular sensing ranges and packet losses on the coverage configuration protocol. They focus more precisely on their impact on the number of selected active nodes, the coverage ratio and the total consumed energy.