b) Illustrate the Inter-Symbol Interference (ISI) effect on the transmitted signal represented in its binary form as 1011, given that the bits 1 and 0 are mapped into +d and -d. Moreover, under the assumption that T' is greater than T. Let the transmitting and channel filters have impulse responses given, respectively as T/2' h,(t) = rect and -T'/2 hc (t) = rect ' [3 Marks]