METHOD AND APPARATUS FOR MULTI-HOP TIME SYNCHRONIZATION FOR WIRELESS SENSOR NETWORKS

摘要

PURPOSE: A method and apparatus for multi-hop time synchronization for wireless sensor networks are provided to flexibly change a network configuration. CONSTITUTION: A gateway(110) receives a request message. The gateway creates a response message including a reference time. The gateway transmits the created response message to an intermediate node. The gateway creates a response follow up message including a process time from the reference time to the response message receiving time. The gateway outputs the created response follow up message to an intermediate node.