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Telecommunications technology continues to grow every year because the need for communication that is used by the community to support life needs in terms of the use of information is increasing. The process of transmitting information through a channel will not be separated from obstacles in the form of errors. One of the transmission technologies is modulation. Modulation is the process of laying on information from the modulation signal to the carrier (the high frequency) by varying the carrier signal according to the modulation signal. One parameter that determines the quality of digital modulation is the Bit Error Rate (BER) by looking at the effect of the energy value per bit of the power spectral density ratio (Eb / N0) and signal to noise ratio (SNR). The purpose of the research can be a reference for the comparison between modulations in the implementation of the fifth generation (5G) technology and can be developed in further research, so that the benefits generated can maximize the implementation of 5G technology. Data collection in this study uses two scenarios, namely Additive White Gaussian Noise and Frequency-flat Rayleigh Fading channels. In each scenario using modulation that is different from the modulation of BPSK, QPSK and 16-QAM. After the simulation results using Matlab are obtained, these results will be compared with the BER theory of each modulation.