Diffusion source localization with a water-proof boundary

The source localization problem is studied for a pollution source close to a water-proof boundary. An approximation method using the elementary analytic function is applied to the density attenuation model, which provides easy and fast localization algorithm. Two different algorithms are proposed for the pollution source localization based on the information sent by wireless sensor networks. While one algorithm, which is based on time and concentration, can localize the source with small delay, the other, which is based only on concentration of the steady state, can provide better localization accuracy and robustness. Simulation results are given to demonstrate the effectiveness of the proposed algorithms.