On Parameters of Optimal Signals with Extended Duration Synthesis Under Limitations on BER Performance

We propose optimal pulse shapes for faster-than-Nyquist (FTN) single-carrier signaling under the constraint on correlation coefficient which determines inter-symbol interference (ISI) and bit-error rate (BER) performance. The energy, spectral characteristics and PAPR values are obtained for different optimal signal parameters and presented in this paper. The influence of optimal signal parameters (values of correlation coefficient, pulse duration, precision) and model parameters (amplitude limitation, phase and frequency offset) on spectral and energy efficiency of communication system, is investigated, and efficient values of optimal signal parameters, also as acceptable model parameters, are obtained.