Review Article
Qasim Zia
Abstract
Many changes have been made in sensor fields which are different for different applications and there are many more which are under development. It is under research to develop sensor nodes which utilize low power and are of low cost. In this paper we have overviewed different data centric protocols and their up gradation. After this there is comparison in some of the latest data centric protocols on different performance metrics that affect the application or wireless sensor network.