ABSTRACT
The blind equalization criteria studied in Chapter 4 for the SISO scenario consider either implicit or explicit use of higher-order statistics. In such a framework, the resulting cost function generally presents local minima, so that the performance of the optimization methods often depends on appropriate initializations. Another limiting aspect in SISO equalization was concerned to equalizability, in the sense that zero-forcing (ZF) conditions cannot be perfectly attained in the usual assumptions of FIR channel and FIR equalizer.
