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Assignment No. 5 
Semester Spring 2012
Data Communication - CS601

 

Total Marks: 20

 

Due Date: 00-07-2012

 

Objective: To understand the concept related to the error detection mechanism.

 

Instructions:

Please read the following instructions carefully before solving & submitting assignment:

Assignment should be in your own wordings not copied from net, handouts or books.

It should be clear that your assignment will not get any credit (marks) if:

 

  • The assignment is submitted after due date.
  • The submitted assignment does not open or file is corrupt.
  • The assignment is copied (from other student or copied from handouts or internet).
  • Student ID is not mentioned in the assignment File or name of file is other than student ID.

 

For any query about the assignment, contact at cs601@vu.edu.pk

 

GOOD LUCK

 

 

 

Q. 1. Suppose a sender sent a word “assignment” for which the receiver received the following binary:

 “01100001011010010111001101101001011001110110111001101110011001010110111001110100”

 

By applying the complete process of LRC using even parity, you are required to check that, is the same word received by the receiver or not? Also write the word received by the receiver.

 

Binary Code

Alphabet

Binary Code

Alphabet

Binary Code

Alphabet

Binary Code

Alphabet

0110 0001

a

0110 1000

h

0110 1111

o

0111 0110

v

0110 0010

b

0110 1001

i

0111 0000

p

0111 0111

w

0110 0011

c

0110 1010

j

0111 0001

q

0111 1000

x

0110 0100

d

0110 1011

k

0111 0010

r

0111 1001

y

0110 0101

e

0110 1100

l

0111 0011

s

111 1010

z

0110 0110

f

0110 1101

m

0111 0100

t

 

 

0110 0111

g

0110 1110

n

0111 0101

u

 

 

Table 1

 

 

 

 

HINT: First convert the word “assignment” into binary equivalent with the help of the given table 1.

The LRC calculated by the sender is not appended with the given binary. It is also your task to calculate the LRC by yourself.

 

 

 

Note:

 

  • Assignment should be in your own wordings not exactly copied from Internet, handouts or books.

 

  • Your answer should be “to the point”.

 

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last date kiya ha iski

4 July 2012

half solution :)
done ab thora sa solve kerdia baqi ke lie dekhta ho phr kr ker deta ho or agr kisi ko baqi ata hai tu bhe suggest kare

Attachments:

i think this is the correct solution they wanted
ve no idea if its 100 per

Attachments:

ye aise to nai ho ga .... LRC calculate krna hai .....see lecture 34 page 174

ahan tu lrc tu simple parity se calculate hoga na ?

even parity se

usman bhai ye solution bht wrong hy 

LRC calculate krny ko kha gia hy please read the hints first

Dear All,

I am sorry but so much weak in roman type of URDU. Please speak international language. its better and it give us path towards the success.

Akber Alwani

what exactly u dont understand? u may ask ... we can translate it in english for u

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