ENERGY EFFICIENT THREE TIER ROUTING PROTOCOL FOR WIRELESS SENSOR NETWORKS

Abstract

Wireless Sensor Network will enable the reliable monitoring of a variety of environments. This thesis deal with proposed communication protocol, which can have significant improvement on energy of (Lifetime) of heterogeneous networks and increment in data packets transmission from the sensor members to the cluster heads. Currently DEEC, DDEEC, EDEEC protocols are used for data transmission in heterogeneous network where data transmitted to the sink, as a result the communication from the sensor nodes to the cluster heads is not efficient; which is improved by the proposed protocol . The nodes send data to BS and CHs only when the sensed attribute crosses a pre-defined threshold, and keep their transmitters off otherwise. Hard Threshold; in which each sensor nodes compare its sensed attribute when the sensor nodes cross the value, transmitter reports to CH. In the case of the Soft Threshold, it is used when sensor crosses hard threshold. Higher value of Soft Threshold lead to lower power consumption and higher network lifetime. 3-Tier communication architecture is introduced to minimize the communication distance. Purposed Protocol approach is 1.5, 1.38 and 1.08 times better than DEEC, DDEEC and EDEEC respectively, in terms of network lifetime. Which shows that the proposed protocol is much better than other routing protocols for Wireless sensor network.