On Regularization of Reduced Redundancy Transceivers

Multicarrier transceivers are widely employed in current broadband communications. These systems require transmission of redundant information as an attempt to eliminate interblock interference and turn the equalization procedure more efficient. In practical systems the amount of redundancy should be reduced in order to increase the data throughput, considering that the redundancy does not generate income for the system operator, since it does not carry new information. In order to tackle this issue, several reduced redundancy transceivers have been proposed, and this work discusses how their performance can be improved by proper regularization. Simulation results show that improvements in bit-error rate performance can be achieved by searching the best regularization factor. Keywords— Block transceivers, multicarrier, single-carrier, reduced redundancy, equalization, regularization factor.