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Wireless communications has become one of the fastest growing areas in ourmodern life and creates enormous impact on nearly every feature of our dailylife. In this paper, the performance of M-ary modulations schemes (MPSK, MQAM,MFSK) based wireless communication system on audio signal transmission overAdditive Gaussian Noise (AWGN) channel are analyzed in terms of bit errorprobability as a function of SNR. Based on the results obtained in the presentstudy, MPSK and MQAM are showing better performance for lower modulation orderwhereas these are inferior with higher M. The BER value is smaller in MFSK forhigher M, but it is worse due to the distortion in the reproduce signal at thereceiver end. The lossless reproduction of recorded voice signal can beachieved at the receiver end with a lower modulation order.

A Comprehensive Study and Performance Comparison of M-ary Modulation Schemes for an Efficient Wireless Mobile Communication System