정밀 거리추정 기반 이동 노드 협업 위치추정 기술

Localization method for arbitrary deployed sensor nodes and mobile terminals/nodes has been considered as an important research theme in the USN/LBS area. In this paper, a cooperative localization method for a cluster of terminals/nodes with a same objective is presented. The position information of the soldiers, firefighters, athletes, and children in the amusement park free to move is positively necessary for a safe management. However, it is inefficient or impossible to set infra up for localization because the activity space of them may be changed. In this paper, an infra-less localization algorithm is introduced using the IEEE 802.15.4a based accurate ranging among the terminals/nodes.