Abstract: The fourth Generation (4G) of cellular systems were designed and implemented to provide high data rate and reliable network coverage for mobile users. Now, the fithth Generation (5G) of cellular systems with a more diverse and broader practical purposes have been researching that some of the demands are data rates beyond the 4G systems up to 1G bit per sec, a slight delay time up to <11 m sec and even lower, very low consumption power, implementation of potential applications such as the Internet of Things (IoT) and all and all require a fundamental changes in the physical layer of network such as waveform and modulation scheme used in the next generation of mobile cellular systems. Modulation scheme of physical layer known as Generalized Frequency Division Multiplexing (GFDM) is a suitable option to respond to these demands and requirements for a technology leap to the next generation of cellular systems. In this study, the performance of GFDM modulation scheme is initially evaluated by Additive White Gaussian Noise (AWGN), Frequency Selector Channel (FSC) and Time-Varying Channel (TVC) and then, it is shown that GFDM modulation scheme brings more reliable transmission than FSC channels by using Walsh Hadamard Transform (WHT) pre-coded on data symbolsthat this functional improvement makes the above-mentioned waveform suitable for potential applications such as the internet of things in which the number of network interconnections is numerous and requires very low delay time because a slight delay time can be obtaineddue to transmission with low error probability. It should be noted that the important parameters of mobile networks such as Symbol Error Rate (SER) and Bit Error Rate (BER) are used for performance evaluation and comparison of method presented in this study.