Therefore, it is meaningful to adopt ways of improving the performance of a wireless mobile communication system with the deployment of M-ary (MFSK) modulation technique. The major disadvantage is its high bandwidth requirement and poor BER performance when compared to other digital modulation techniques like BPSK and QPSK.
The choice of which digital modulation scheme or technique to employ is largely dependent on cost and efficiency in providing high data rates and very low bit error rates (BER) in the midst of prevailing challenges such as fading. Digital modulation is very effective in dealing with noise and robust to channel impairments. Modern mobile and wireless communication systems adopt digital modulation scheme as an essential module for signal processing instead of previously used analog modulation. Keywords: MFSK, Reed-Solomon Code, Bit Error Rate, Multipath, Rayleigh, Rician
#Fsk modulation in matlab simulink code
The improvement of the BER of M-FSK by using Reed-Solomon error correction code was achieved. The redundancy increases as code rate decreases leading to an improved Bit-Error-Rate performance. Decrease of BER performance was observed as the length of codeword symbols (n) increase at constant code rate and error correcting capability. It was observed that the BER performance of M-FSK with RS codes improved greatly compared to M-FSK system without error correction. The entire model based design, modelling and simulation was done using MATLAB/SIMULINK. The message is encoded and decoded using the error-correcting Reed-Solomon Codes were employed to encode and decode the message.
The detection and correction of the received information errors from the multipath fading channel was done using the Forward Error Correction (FEC) technique. Abstract: This paper focuses on the application of Reed-Solomon Error Correction Code evaluation technique on the Bit-Error-Rate performance of M-ary Frequency Shift Keying (M-FSK) in noisy multipath Rayleigh and Rician fading channel.