A METHOD OF DETERMINING PRIORITY BETWEEN SENSOR-NODES ACCORDING TO QUANTITIES OF TRANSMITTING DATA OF CHILD SENSOR NODE FOR SENSOR NETWORK

摘要

PURPOSE: A priority ranking providing method between sensor nodes is provided to minimize a collision between data by providing priority between sensor nodes based on the transmission amount of a child node. CONSTITUTION: Routers transmit first data frames to a coordinator(S12). The coordinator measures the reception number of the data frames during predetermined time and provides priority of terminal nodes according to the number(S15). The coordinator transmits the priority to the terminal nodes through the routers and creates a beacon frame. The terminal nodes transmits a second data frame to the routers(S18). The routers transmit the second data frame according to the priority of the beacon frame.