07-11-2014, 03:13 PM
[B]CS601- Data Communication Assignment No. 3 Solutions and Discussion Spring July 2014 Close Date 14th July 2014
Assignment
Question 1: (5 Marks)
When a signal travels from source to destination, it may b affected by different external factors that cause the loss of energy, due to which the signal may differs from its actual shape. In the given table you are required to identify the type of noise with respect to noise source.
Noise Source
Noise Type
Telephone Wire
Water Pump
Earthquake
Extra Signal generated by Motion of Electron
Grinder
Question 2: (5 Marks)
Suppose a signal is generated from a source with initial power of 1000W but due to attenuation it is received at destination (80 Km away from source) with power of 100W. Find the total power loss in decibels by writing formula with all calculation steps.
Question 3: (5 Marks)
Suppose you need to have simultaneous transmission of signals through a single medium, then which technique will be used to fulfill this requirement? Also describe, how does that technique work at sender and receiver end?[/B]