Baseband cross-polarization interference cancellation for M-quadrature amplitude-modulated signals over multipath fading radio channels

In this paper we propose a novel baseband structure capable of adaptively mitigating cross-polarization interference in a dual-polarized, M-state quadrature amplitude-modulated received signal. We show that by using this canceler, performance signatures very close to single-polarized system signatures can be achieved for dually polarized digital radio systems.