Robust Location Error Detection Protocol for Geographic Routing in indoor Wireless Sensor Networks

실내 무선 센서 네트워크에서 위치 기반 라우팅을 위한 위치 에러 감지 프로토콜

In wireless sensor networks(WSNs), geographic routing algorithms can enhance the network capacity. However, in the real WSNs, it is difficult for each node to know its accurate physical location. Geographic routing with location error may have serious problems such as disconnected links and delayed data transmission. In this letter, we present an efficient location error detection scheme for geographic routing. The proposed algorithm can efficiently update its incorrect location without additional procedure and finally enhance the performance on the geographic routing with the location errors.