Hinfinity Filter with Adaptive Robustness Level for Space-Time Equalization

In this work, we propose the combination of mean performance and robustness in the context of adaptive space-time channel equalization. We first briefly discuss H₂ and H_∞ optimization criteria, which are respectively associated to mean performance and robustness. As an alternative to the convex combination of H₂ and H_∞ filters to join the desirable properties, we propose an adaptation scheme for the robustness level of the H_∞ filter for combining mean performance and robustness through a unique filter.