A channel order independent method for blind equalization of MIMO systems

We study blind equalization of noisy MIMO-FIR systems driven by white sources. We present a new second order statistics (SOS) based approach which does not require the knowledge of the channel order. This technique blindly transforms a convolutive mixture of users into an instantaneous one. Thus, in the special case of a single user (SIMO systems), an estimate of the input signal is readily obtained. Computer simulations results illustrate the promising performance of the proposed technique. We compare our method with the multistep prediction (MSP) approach (in the context of SIMO systems), and evaluate the algorithm capability in globally nulling the intersymbol interference (ISI) for MIMO systems.