Sensor Network Measurement Technology Based on Network Tomography
Yongjun Li · Jisuanji gongcheng · 2008
This paper proposes a performance measurement method based on network tomography techniques in sensor network. It analyses the data which is transfered in sensor network received by the sink node and infers the sensor network performance characteristics. In response to the nature of sensor network, it introduces the loss model based on passive measurements and solves the loss inference problem by using MLE-EM algorithm. Simulation results demonstrate that the methodology can infer the link loss rate accurately without any additional overhead for sensor network, and scale to large sensor network.