Efficient route update protocol for wireless sensor network

摘要

An apparatus and method thereof for route update for a communication system including a target, a sensor node collecting information of the target within a predetermined range, and a sink node receiving the information of the target from the sensor node through a first route built therebetween for target information transmission. The sensor node collects the information of the target, and broadcasts a routing request message when the information of the target is not received anymore. The information contained in the routing request message received from a first sensor node of a first sensor node on the first route is compared with the information contained in the routing request message received from a second sensor node of a second sensor node group at a predetermined distance from the first sensor node group. The first route is updated by using the sensor node selected based on the comparison.