Homework 7
Reading
 Chapter 2 in the Anderson text
Problems

Suppose you wish to transmit
bits per second over a
channel with onesided bandwidth
Hertz.
 What is the maximum symbol rate that avoids ISI?
 What is the fewest number of bits per symbol that avoids ISI? Let this number be denoted min.
 Design a raisedcosine (RC) pulse that occupies the full channel bandwidth. What is the excess bandwidth when there are min bits per symbol?
 Design a raisedcosine (RC) pulse that occupies the full channel bandwidth. What is the excess bandwidth when there are min bits per symbol?
 Design a raisedcosine (RC) pulse that occupies the full channel bandwidth. What is the excess bandwidth when there are min bits per symbol?

Show graphically (via a sketch in the frequency domain) that
the
min
case avoids ISI.

Using a
RC pulse to transmit
bits/second with
bits/symbol, what is the minimum channel
bandwidth needed for zero ISI in the samples taken by the sampling
receiver?

Let the transmitter pulse be given by

Let the transmitter pulse be given by

Prove that the NRZ pulse defined by

Prove that the sinc pulse defined by
sinc
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