Determinação computacional das curvas de probabilidade de erro de símbolo das modulações PSK e QAM em canais de comunicação AWGN.

Abstract

One of the most used models in theoretical studies of digital communication channels is the AWGN channel. In this work, a bibliographic review on relevant topics regarding the study of the model referred above, as well as a review of the digital modulation schemes Phase Shift Keying (PSK) and Quadrature Amplitude Modulation(QAM). Implementation details of an AWGN channel simulator that performs digital information transmission using arbitrary order PSK modulations or rectangular QAM are shown. If compared to the theoretical results, the simulation results obtained from simulation, probability of symbol error curves and noisy constellation diagrams, present high degree of agreement, validating the developed computer model.