The Research and Optimization of Data Gathering Protocol for Wireless Sensor Network
Feng Yacha · Chuangan jishu xuebao · 2014
PEADG( Power Efficient Algorithm for Data Gathering) is a data collection protocol of the meter reading system based on Wireless Sensor Network( WSN). The network topology of PEADG protocol is composed of a set of trees. The root nodes balance the network load,and effectively extend the lifetime of the network. However,PEADG still exist some problems such as: does not consider the balance of the number of nodes on multi-trees. We focus on the problems existed in PEADG,and propose some improvements from three aspects:( 1) balance the network load of multi-tree in the topology;( 2) consider the residual energy of nodes;( 3) collect network topology information by using base station. The simulation results by MATLAB tools show that the improved protocol extends the lifetime of the network.