Abstract
Wireless sensor networks are capable of observing the environment, processing data, and making decisions based on these observations. They have high potential impacts in many fields, including: education, healthcare, monitoring, retail, and science. Wireless sensor networks are composed of a large number of sensor nodes with limited energy resources. There is a need to design protocols that adapt much better to the constraints of the sensor network environment. I propose a protocol called Large Scale Environmental Monitoring and Maintaining Sensing Coverage in Sensor Networks. When an event is expected to occur in an area, the application requires a minimum percentage of sensor coverage. Since the sensor nodes are deployed randomly in the sensing field, it may consist of sensor nodes with overlapping coverage areas providing redundant data. It would be desirable to save energy in some sensor nodes by allowing them to sleep, when sensor node is covered by the neighbors of sensor nodes.