Abstract: This paper presents performance evaluation of the different Modulation Schemes (BPSK, QPSK, GMSK) in terms of Bit error rate (BER) in cellular mobile environment with GSM standard parameters. The main objective of this paper is to investigate the factors that go into selection of the particular modulation scheme in the wireless environment. To analyze the cellular mobile environment GSM standard is selected. There are a number of factors that enter into the choice of a modulation scheme for use in a wireless application. Performance of a cellular system is dependent on the efficiency of the modulation scheme in use. Gaussian channel model was used. The various modulation schemes like BPSK, QPSK, and GMSK will be simulated in SystemVue software.