무선 센서 네트워크에서 싱크 노드의 이동성을 지원하기 위한 계층적 라우팅 방법

Wireless sensor network, which is used in ubiquitous application field in a variety of ways, refers to a network composed of wireless sensor nodes that are disseminated in specific locations in order to detect certain events. This paper focuses on routing protocol that is useful in an environment where the mobile sink nodes exist. In the presence of mobile sink nodes, energy efficiency tends to drop because of the increase in control message due to frequent location update. This paper suggests an energy efficient routing method with higher reliability of data transmission.