Some problems of directional sensor networks

Authors:
Huadong Ma;Yonghe Liu
Affiliations:
Beijing Key Lab of Intelligent Telecommunications Software and Multimedia, School of Computer Science and Technology, Beijing University of Posts and Telecommunications, China.;Department of Computer Science and Engineering, The University of Texas at Arlington, TX 76019, USA
Venue:
International Journal of Sensor Networks
Year:
2007

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Abstract

Wireless sensor networks are often based on omni-sensing and communication models. In contrast, in this paper, we investigate sensor networks with directional sensing and communication capability. Due to the distinct characteristics and potential effects on coverage and connectivity of the network, novel analysis and solutions are demanded. Towards this end, this paper analyses deployment strategies for satisfying given coverage probability requirements with directional sensing models. Moreover, for sensors with directional communication model, we propose methods for checking and repairing the connectivity of the network. We design efficient protocols to implement our idea. A set of experiments are also performed to prove the effectiveness of our solution.