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Sensor networks have been deployed for many barrier coverage applications such as intrusion detection and border surveillance. In these applications, it is critical to operate a sensor network in an energy-efficient manner so the barrier can be covered with as few active sensors as possible. In this paper, we study barrier information coverage which exploits collaborations and information fusion between neighboring sensors to reduce the number of active sensors needed to cover a barrier anddoi:10.1109/infcom.2009.5062002 dblp:conf/infocom/YangQ09 fatcat:udmtgufgyrhr5cngthwzv23dki