Performance of FMT with time confined and frequency confined pulses over indoor radio channels

In this paper we study the performance and complexity tradeoff of filtered multitone modulation (FMT) in statistically representative indoor radio channels. We consider two design approaches. The first one is based on the use of long prototype pulses with high sub-channel frequency confinement. The second one follows an orthogonal design with minimal length pulses (down to the length of one transmitted symbol) and good frequency confinement. We present a simulation analysis showing that the FMT system achieves higher capacity than conventional OFDM. This is true also for FMT with minimal length pulses whose complexity is almost comparable to that of orthogonal frequency division multiplexing (OFDM) with an identical number of sub-channels.