Improved pat protocol for data transmission in wireless sensor network

Abstract

Wireless sensor network is wireless network that communicates the data from different devices through wireless link. The main application of wireless sensor networks is to monitor or observe conditions (physical or environmental) like sound, pressure, temperature and also in real time applications like object tracking, disaster reporting military systems. These real time applications generate urgent and sensitive data which has to be transmitted on time. There are different urgent data transmission protocols available for transmitting urgent data from source node to master node. Path assured transmission protocol is one of such protocol which transfers the urgent data to master node giving it more priority. But it ignores the normal data that needs to be transmitted. The proposed improved path assured transmission protocol transfers urgent data and then it also transfers normal data based on its priority. Results have proved improved path assured transmission protocol is much better compared to path assured transmission protocol in terms of packet delivery ratio, delay and packet drop ratio.