An analysis of a large scale habitat monitoring application
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Underground structure monitoring with wireless sensor networks
Proceedings of the 6th international conference on Information processing in sensor networks
Maximal Coverage Scheduling in Randomly Deployed Directional Sensor Networks
ICPPW '07 Proceedings of the 2007 International Conference on Parallel Processing Workshops
Cover Set Problem in Directional Sensor Networks
FGCN '07 Proceedings of the Future Generation Communication and Networking - Volume 01
An Adjustable Target Coverage Method in Directional Sensor Networks
APSCC '08 Proceedings of the 2008 IEEE Asia-Pacific Services Computing Conference
Angular Mobility Assisted Coverage in Directional Sensor Networks
NBIS '09 Proceedings of the 2009 International Conference on Network-Based Information Systems
On coverage issues in directional sensor networks: A survey
Ad Hoc Networks
On coverage problems of directional sensor networks
MSN'05 Proceedings of the First international conference on Mobile Ad-hoc and Sensor Networks
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Adequate coverage is very important for sensor networks to fulfil the issued sensing tasks. In traditional sensor networks, the sensors are based on omni-sensing model. However, directional sensing sensors are with great application chances, typically in video sensor networks. Toward this end, this paper discusses the problem of enhancing coverage in a directional sensor network. First, based on a rotatable directional sensing model, we describe a method to rotate the sensing direction of each sensor improve the coverage rate for a given deployment. Moreover, the concept of priority is introduced to model the importance of rotating sequence of sensors. According to the characteristic of adjustable sensing directions of directional sensors, we study the area coverage enhancing problem and propose two coverage-enhancing algorithms to maximise the sensing area of directional sensors only with local topology information. Extensive simulation is conducted to verify the effectiveness of our solutions and detailed discussions are also given on the performance compared with previous approach.