Performance of Filter Bank Modulation with Phase Noise

We study the effect of phase noise in filter bank modulation systems. In particular, we analyze the FMT (Filtered Multitone) and the DMT (Discrete Multitone) system. While DMT uses a rectangular shape sub-channel pulse, the FMT system uses a frequency confined pulse. Approximated symbol error rate expressions for M-PSK and M-QAM constellations are derived for two types of receivers: the non-coherent receiver, and the one-tap coherent receiver. The results show that FMT with a root-raised-cosine pulse has some more robustness to phase noise w.r.t. DMT, although both systems are affected by phase noise especially with high order modulation.