Encoding process, Computer Networking

Encoding Process

c= uG

u: binary data sequence of length 4( input)

G: Generator matrix which is 7*4

c: Codeword

 

 

797_Encoding Process.png

Decoding Process

s= rHT

r: received data sequence of length 7 ( input) H: Parity-Check Matrix

s: Syndrome to check error-position

 

 

1855_Encoding Process1.png

If some output values of the encoding and decoding multiplication is over than 1, the value should be changed into remainder on division of itself by 2.  (Ex: (4 2 1 ) => (0 0 1))

 

s(Syndrome) detect error position. We can know the single-error-bit position in the table below.

234_Encoding Process2.png

Fig. Decoding table for Hamming code(7,4)

If s is [0 0 0] and r= [0 1 0 0 0 1 1], it supposes that there is no error and transmitted data is [0 0 1 1]. If s is [0 1 0] and r = [1 0 1 0 0 1 0], it supposes that 2th bit is corrupted, so r should be changed to [1 1 1 0 0 1 0], and transmitted data is lower 4bits, [0 0 1 0].

Posted Date: 2/19/2013 1:12:08 AM | Location : United States







Related Discussions:- Encoding process, Assignment Help, Ask Question on Encoding process, Get Answer, Expert's Help, Encoding process Discussions

Write discussion on Encoding process
Your posts are moderated
Related Questions
Difference among the communication and transmission? Transmission is a physical movement of information and concern issues as bit polarity, synchronization, clock etc. Commu

3.  Explain how you would pipeline the four following pairs of statements.  (4×5 points) a)  add $t0, $s0, $s1 beq $s1,$s2, 300 b)  add $t2, $t0, $t1 sw $t3, 36($t2) c)



Q. Show the Error control in TCP? Error control in TCP Detect lost segments, out-of-order segments, corrupted segments and duplicated segments Three tools: chec

i need the job to be done within 3days

Q. Define RS232 Interface? - Indicates the interface between DTE and DCE: V.28 mechanical as well as electrical characteristics V.24: functional as well as procedur

Can you describe the concept of IP multicasting or multicast IP address?

Need for standards - Over the past couple of decades several of the networks that were built used different hardware and software implementations therefore they were incompatib

Question 1: (a) In networking, there are different possible topologies. Explain the Linear bus, Ring and Star topology along with their advantages and disadvantages. (b) W