1. Chapter 7 Binary Receivers
Colored Noise and Matched Filter Reception
Performance of Baseband Unipolar Signaling
Performance of Baseband Polar Signaling
Performance of Baseband Bipolar Systems
Huseyin Bilgekul
EEE 461 Communication Systems II
Department of Electrical and Electronic Engineering
Eastern Mediterranean University

2. Homework Assignments Return date: 20-12-2005 Assignments: Problem 7-1

3. Matched Filter Receiver for Colored Noise
Evaluate BER for colored noise.
Prewhitening Filter is inserted ahead of the receiver.
Transfer function of the prewhitening filter is.
The following receiver can now be designed for white noise.
White Noise

4. Receiver of Baseband Unipolar Signaling

5. Performance of Baseband Unipolar Signaling

6. Receiver of Baseband Polar Signaling

7. Performance of Baseband Polar Signaling
Polar signaling has 3 dB advantage over unipolar signaling.
For the same Pe, unipolar signaling requires 3 dB more power.

8. Performance of Baseband Polar Signaling

9. Performance of Baseband Bipolar Signaling

10. Performance of Baseband Bipolar Signaling
Binary 1’s are represented by alternating positive and negative values.
s1(t) = ±A, 0 < t < T (Binary 1)
s2(t) = 0, < t < T (Binary 0)
fr|m
fr(r|0)
fr(r|-1)
fr(r|1)
-VT VT

11. Performance of Baseband Bipolar Signaling

12. Performance of Baseband Bipolar Signaling
Blue-bipolar
Green- unipolar (on/off)
Red – bipolar AMI