TIMEOUT CONTROL FOR IN-NETWORK DATA AGGREGATION IN SENSOR NETWORKS CONSIDERING PACKET SIZE LIMIT

摘要

PURPOSE: A waiting time controlling method in consideration with packet size in a sensor network is provided to increase the performance of a data aggregation method in case data is compressed. CONSTITUTION: An initialization message is transmitted from a sink node to a sensor node. Data which is collected by the sensor node is transmitted to the sink node. The initialization message is received in order to control waiting time according to the number of data. The waiting time is controlled by Ti=MAX( hXg/q/cX(i-1)+g/q, 0 ).