LNC 1.1.3b- SHANNON THEORY.pdf-Channel C...
LNC_1.1.3b-_SHANNON_THEORY.pdf-Channel Capacity Lecture No. 11 Dr.
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LNC 1.1.3b- SHANNON THEORY.pdf-Channel Capacity Le...
LNC_1.1.3b-_SHANNON_THEORY.pdf-Channel Capacity Lecture No. 11 Dr.
LNC 1.1.3b- SHANNON THEORY.pdf-Chan...
LNC_1.1.3b-_SHANNON_THEORY.pdf-Channel Capacity Lecture No. 11 Dr.
Page 14
Lecture No. 11:
Channel Capacity
So as the bandwidth goes to infinity the capacity goes to
1
.
44
S/N
0
, i.e., it goes to a finite value and is not infinite!
DT008/2 Digital Communications Engineering II
Slide:
13


Page 15
Lecture No. 11:
Channel Capacity
Sample Question 2
A communications channel with a bandwidth of 4 kHz has a
signal power to noise ratio of 7. The bandwidth is reduced
by 25 %. How much should the signal power be increased to
maintain the same channel capacity?
DT008/2 Digital Communications Engineering II
Slide:
14


Page 16
Lecture No. 11:
Channel Capacity
Conclusion
These lectures have looked at the following:
Channel capacity
Shannon’s channel capacity theorem
Capacity versus bandwidth
DT008/2 Digital Communications Engineering II
Slide:
15


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