A Link Quality Estimation Method for Wireless Sensor Networks Based on the Ladder Network
Hui Lv, Liu LinLan · 2021
Wireless Sensor Networks are affected by multipath fading, noise, and interference in the deployment environment, which makes wireless communication unreliable. Accurate and effective evaluation of communication link quality is helpful to assist the design of high-level routing protocol, ensure network throughput, and reduce retransmission. In this paper, a link quality estimation method based on ladder network is proposed: PAM(partitioning around medoids) algorithm is used to divide the link quality Grade, which as a basis for measuring the quality of the link; To improve the robustness and correlation of link features, ladder network is used to build link quality estimator to evaluate link quality. Data are collected in different interference scenarios. In the experiment, compared with other methods, the proposed link quality estimator has better precision and fl-score.