Investigation on energy conservation in wireless sensor networks

Abstract

In the recent years Wireless Sensor Network WSN has emerged newlineas a system composed of numerous sensor nodes distributed over an area in newlineorder to collect information process and finally deliver the environmental newlinemeasurements to some central sink Each node consists of sensors a newlinemicrocontroller unit and radio There are four modes of operation namely newlinetransmit receive idle and sleep It is necessary to reduce the idle mode and newlineprolong the sleep mode when data packets are neither transmitted nor newlinereceived The lifetime of sensor nodes must be long Energy consumption is newlinean important factor that determines the sensor nodes lifetime The most newlineimportant need to increase the life time is to achieve low energy consumption newlineAs a result it is required to develop a communication protocol which will newlinereduce the energy consumption of sensor networks newline newline