Abstract: Digital communication has been experiencing a lot of tremendous growth and success. It employs digital technique of modulation and demodulation which makes it more efficient, complex and secure in long distance transmission than its analogue counterpart. Of various types of digital modulation, Binary Phase shift Keying (BPSK) technique of modulation is believed to be reliable in long distance transmission with minimal errors. In this paper, computer based analysis is been carried out to comparatively model and analyse BPSK technique along-side other M-PSK techniques over an AWGN channel paying specific attention to the bit error rates(BER), number of errors and number of samples generated by the MATLAB simulation. The MATLAB simulation results show the BPSK method proves to be a better technique where distance and error generation are top factors to be considered.
Keywords: Modulation, BPSK, BER, AWGN channel.