Wireless communications are the fastest-growing segment of the communication industry. The most widely used wireless communication is mobile communication. However, many technical challenges must overcome. A signal transmitted on a wireless channel is subject to Fading, Shadowing, Interference, Propagation path loss. There is always a higher demand for capacity with high-quality service. In this situation, orthogonal frequency division multiplexing (OFDM) is a well-defined technique, which is a suitable option for high bandwidth data transmission by converting the wideband signal into narrowband signals for transmission. The transmission of these individual narrowband signals has executed with the orthogonal carrier. This paper presents the theoretical background of digital modulation. It evaluates the performance of 32FSK, modulation techniques concerning Bit Error Rate in the presence of Gaussian, Rayleigh, and Rician noise. The primary objective of any communication system is to receive the data with minimum errors as the errors degrade the system performance. Bit Error Rate (BER) is an essential factor that decides the performance of different modulation techniques. This paper focusses on the effect of different types of noise for the modulation mentioned above schemes under AWGN channel. The complete system has implemented in MATLAB Simulink environment.