The minimum error entropy based robust wireless channel tracking in impulsive noise

Abstract

This article concerns the problem of adaptive wireless channel tracking in the non-Gaussian /spl alpha/-stable noise. By assuming a primitive Cauchy distribution for the estimate error and minimizing the entropy of error, we develop the least entropy of error (LEE) based wireless channel tracking algorithm and the second-order LEE (SOLEE) algorithm. Simulation results show that both algorithms are robust to impulsive noise and such robustness can be achieved without any performance loss in the Gaussian noise.