Filterbank preceders for blind equalization: Polynomial ambiguity resistant precoders (PARP)

Filterbank preceding in the intersymbol interference (ISI) mitigation has r ecently attracted much attention. Two main areas of such research have been explored. One of them is on filerbank preceding when the ISI channel is kn own to both the transmitter and the receiver, while the other is on filterb ank preceding when the ISI channel is not known to the transmitter or the r eceiver, This paper is in the second area and the aim is two-fold, We first summarize some recent results on ambiguity resistant filterbank precoders for the ISI mitigation when the ISI channel is not known at the transmitter or the receiver, i.e., for blind equalization. We then present some new re sults on the construction and characterization of such precoders. The theor y presented in this paper applies to both single antenna (SISO) systems and multiple antenna (MIMO) systems as spare-time precoding.