Scheduling sensor activity for point information coverage in wireless sensor networks

Abstract— An important application of wireless sensor networks is to perform the monitoring missions, for example, to monitor some targets of interests at all times. Sensors are often equipped with non-rechargeable batteries with limited energy and energy saving is a critical aspect for wireless sensor networks. If a target is monitored simultaneously by serval sensors, some of them can be switched off to save energy without causing mission failure and by which their operational times as well as the network lifetime can be prolonged. In this paper, we study the problem of scheduling sensor activity to cover a set of targets with known locations such that all targets can be monitored all the time and the network can operate as long as possible. A solution to this scheduling problem is to partition all sensors into sensor covers such that each cover can monitor all targets and the covers are activated successively. In this paper, we propose to use the notion of information coverage whi...

• Type: Conference
• Year: 2006
• Where: WIOPT
• Authors: Bang Wang, Kee Chaing Chua, Vikram Srinivasan, Wei Wang 0002
• Keywords: Information Coverage, Sensor, WIOPT 2006, Wireless Networks, Wireless Sensor Networks