TO DESIGN MODERN DIGITAL COMMUNICATION SYSTEM VARIOUS QAM REDUCE SNR AND BER USING RAISED COSINE FILTER

TO DESIGN MODERN DIGITAL COMMUNICATION SYSTEM VARIOUS QAM REDUCE SNR AND BER USING RAISED COSINE FILTER Abstract In Quadrature Amplitude Modulation or QAM is a form of modulation which is generally used for modulating data signals into a carrier used for modem digital communications. QAM, once used for modem digital transmission for wireless communications exhibition, is in a position to hold higher information rates concerning time than average amplitude-modulated schemes and phase modulated schemes. This invention suggested A Novel Approach of Delay time in different QAM with different roll-off factor in Raised Cosine Filter and Squar root raised Cosine Filter concerning BER and SNR. The time delay between the raised cosine filter and the Squar root raised cosine filter. Also, a comparative analysis of the proposed model with state-of-art is reported in terms of Bit Error Rate (BER) with a bit rate. 11 P a g e TO DESIGN MODERN DIGITAL COMMUNICATION SYSTEM VARIOUS QAM REDUCE SNR AND BER USING RAISED COSINE FILTER Diagram Source Modulation SRRC Filter site AWGN Channel Receiver Demodulation SRRC Filter site P ag e