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CSC344 Wireless and Mobile Computing Assignment No. 1 Solution and Discussion Spring 2014 Comsats Virtual Campus Due Date: April 11, 2014

CSC344 Wireless and Mobile Computing  Assignment No. 1 Solution and Discussion Spring 2014Comsats Virtual Campus Due Date: April 11, 2014

COMSATS Virtual campus

Islamabad

 

Assignment 1

Total marks 10

 

Deadline: 11th April 2014

Attempt both questions.

 

 

Q.No.1. Suppose a computer sends a packet at the transport layer to another computer somewhere in the Internet. There is no process with the destination port address running at the destination computer. What will happen?                                                               05 Marks

 

Q.No.2. A line has signal-to-noise ratio of 1000 and a bandwidth of 4000 KHz. What is the maximum data rate supported by this line?                                                 05 marks

 

 

Views: 450

Replies to This Discussion

Q.No.2. A line has signal-to-noise ratio of 1000 and a bandwidth of 4000 KHz. What is the maximum data rate supported by this line?  

The Formula is C=B log_2 (1+SNR) = 4000 log_2 (1+1000) = 4000 x 9.9672 =

Q.No.2. A line has signal-to-noise ratio of 1000 and a bandwidth of 4000 KHz. What is the maximum data rate supported by this line?  

The Formula is C=B log_2 (1+SNR) = 4000 log_2 (1+1000) = 4000 x 9.9672

= 39868.8.

Q.No.1. Suppose a computer sends a packet at the transport layer to another computer somewhere in the Internet. There is no process with the destination port address running at the destination computer. What will happen?

Most protocols issue a special error message that is sent back to the source in this case.

Q. 1 

Answer

it will be sent to the default gateway by default.

Q/2

Answer

Capacity = Bandwidth*log2(1+SNR)

Q.2

The Formula is C=B log_2 (1+SNR) = 4000 log_2 (1+1000) = 4000 x 9.9672 = 39868.8.

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