7 The engineers of the telecommunication company tested the link between the sender and the receiver...
7 The engineers of the telecommunication company tested the link between the sender and the receiver for a multimedia application, and found Q(x)=0.158 for the 256-OAM digital multimedia communication system. Can this system transmit data free from ISI problem with 10 kbps speed over a noisy channel of 5 kHz? Prove mathematically. Comment on the results. 8 A memoryless data source produces five different symbols (A, B, C, D, E) of probabilities of occurrence: PA=PB-PC=0.2, PD=0.3, and PE=0.1. Calculate and compare the code efficiency for both cases: fixed and variable length codes. Comments on the results.