Optimal design of a multicarrier systems with soft impulse shaping including equalization in time or frequency direction

Multicarrier systems achieve good results when used for data transmission over mobile radio channels. We discuss design aspects of a multicarrier system with soft impulse shaping (MCSIS). We present symmetry criteria, when transmitting over an AWGN-channel, between equalization either in time or frequency direction. We show that the loss of this symmetry, when transmitting over a mobile radio channel, leads to a multicarrier system that can very flexibly be adapted to the requirements of different transmission environments.