Performance analysis of non-orthogonal MT-FSK systems with degradedbranch statistics

摘要

The authors analyze the performance degradation of a MT-FSKn(multiple-tone frequency-shift keying) scheme based on Steiner designsnon a Rayleigh fading channel with degraded branches. Two cases arenshown, a fading channel with correlated branches and a fading channelnwith unequal average signal-to-noise ratio per branch. These twonimpairments are shown to decrease the effective diversity; however,nimprovements are still observed over conventional MFSK