SENSOR NETWORK SYSTEM WHICH SUPPORTS MULTI-HOP ROUTING BETWEEN CLUSTER HEADS AND ROUTING METHOD THEREOF

摘要

PURPOSE: A cluster based sensor network system supporting a multi-hop routing between a cluster head is provided to reduce the amount of a traffic by transmitting a message in a specific cluster member node of a sensor network by a unicast method in a sync node. CONSTITUTION: A sync node(300) transmits a virtual rounding message, which added an original message to a virtual routing message header, to a cluster head nodes(302,304) of a cluster member node(306). The cluster head node extracts the original message from the received virtual routing message. The cluster head node transmits the original message to the cluster member node assigned as a receiver of th erorignal message.