WSN에서 위치좌표를 이용한 에너지 효율적인 라우팅 프로토콜에 관한 연구

Abstract

WSN(Wireless Sensor Network), which is fundamental technology for ubiquitous computing, is more restricted in resource such as battery than mobile ad-hoc network and most of working area can't be approached by the operators. Thus, efficient consumption of energy at each node is the most important field of research for WSN.

Previous routing protocols for WSN haven't completed to accommodate its features. Especially, big profit in energy consumption, global ID problem, etc. are expected when position coordinate is used, but there are rare protocols using it actively. In case of GEAR(Geographical Energy-Aware Routing), which represent protocol using position coordinate, don't expose feature of WSN because it was designed only for forwarding query messages and supposed fixed network environment.

Proposed routing protocol in this paper defines direction of data, which route packet from each nodes to sink, based on position coordinate of both each node and sink. It hasn't global ID because of location-aware and data-centric routing, and prevent unnecessary consumption of energy by forwarding packet along direction.