무선 센서 네트워크에서의 네트워크 수명 증진을 위한 홉 단위 동적 경로 기반 라우팅 기법

Abstract

Some studies have investigated the relationship between routing methods and application layer security methods in wireless sensor networks (WSNs). However, routing is strongly related to the security of filtering methods in order to detect false reports. In addition to that, it is also related to the energy consumption of nodes and the network lifetime. The interleaved hop-by-hop authentication scheme (IHA) guarantees that every false report is detected and dropped if the number of compromised nodes is less than t. Nevertheless, IHA sensor nodes exploit the same routing path from a cluster head (CH) to the base station (BS) until a node on the routing path fails or its energy is depleted. Therefore, imbalance of the nodes’ energy consumption occurs and network lifetime is reduced. We propose a new filtering scheme where each node on the routing path can adaptively select the next hop node based on fuzzy logic with a consideration for energy consumption, the distance to the BS, and the key information of its neighbor nodes. Our proposed method can provide the same level of security as IHA and can increase network lifetime when compared to IHA.