Energy Efficient Beacon Scheduling in WSN

Abstract

In wireless sensor network the main source of energy consumption is Idle listening. Keeping energy consumption in mind the wireless sensor network should quickly sensing data. The communication between the nodes is only possible when both nodes are in active state. In this paper, we have implemented a modified beacon scheduling in the recipient MAC protocol. the data will be transmitted to the node in the active state thus effectively saving the energy consumption in the idle state. For transmission of data, synchronization of all nodes is important. Each node has its defined time slot to avoid collision of data. The receiver node sends a beacon frame request to the slave node in active state in response to it the slave node sends data frame if any to the node. The communication takes place only in the active state thus saving the energy in passive state (sleep state). The system is simulated in visual basic software and the graphs are plotted accordingly. It also shows the active and sleepy state of the network.