Modems, in the beginning, were used mainly to communicate between data terminals and a host computer. Later, the use of modems was extended to communicate between end computers. This required more speed and the data rates increased from 300 bps in early days to 28.8bps today. Today, transmission involves data compression techniques which increase the rates, error detection and error correction for more reliability.
Mohammad Liton Hossain, Abdur Rahim (2018); Design and Implementation a BPSK Modem and BER Measurement in AWGN Channel; International Journal of Scientific and Research Publications (IJSRP)
8(5) (ISSN: 2250-3153), DOI: http://dx.doi.org/10.29322/IJSRP.8.5.2018.p7719