B. (10Marks 4+3+3 Data is transmitted using 8-ary phase shift keying (PSK) modulation and a (94,64) error correction code which is guaranteed to correct 6 errors in the 94-bit codeword. What is the mathematical equation for the probability of bit error at the demodulator output? p Pr bit error is a function of Write mathematical equations for both the case of no error correction encoding and the case 1. of error correction encoding. Clearly label the cases in your solution. Hint: Include the effect of the code rate, r,for the case of error correction encoding 2. Suppose the transmission data rate is 2 Mbits/s. If rectangular pulse shaping is used, what is the required transmission bandwidth when error correction encoding is used? 3. Use Matlab to plot P. as a function of dB for the case of no error correction coding and the case of error correction coding Plot the two curves on the same graph. Plot P on a log scale on the y-axis Plotn dB on the x-axis Plot the two curves for: S12 dB, in increments of 0.1 dB