Encoding process, Computer Networking

Assignment Help:

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].


Related Discussions:- Encoding process

Show the crc-performance, Q. Show the CRC-Performance ? CRC-Performanc...

Q. Show the CRC-Performance ? CRC-Performance CRC is able to detect all burst errors that affect an odd number of bits CRC is able to detect all burst errors of

Data mining, The following DNA sequences are extracted from promoter region...

The following DNA sequences are extracted from promoter region of genes which are co-regulated by the same transcription factor (TF). The nucleotide segments capitalized in the giv

Explain the uses of firewall in computer, Explain the uses of Firewall in c...

Explain the uses of Firewall in computer For Intranet developers, restricting access of unauthorised users to the Web site has been the greatest challenge. In addition to preve

Factor causing parallel overheads, Factor Causing Parallel Overheads F...

Factor Causing Parallel Overheads Figure clearly explains that the performance metrics are not able to achieve a linear curve in comparison to the enhance in number of process

Why it is necessary to have layering in a network, Why it is necessary to h...

Why it is necessary to have layering in a network? A computer network is a very complex system. It becomes very difficult to execute as a single entity. The layered approach di

Show the network layer in an internetwork, Q. Show the Network layer in an ...

Q. Show the Network layer in an internetwork? - Receives data from Transport layer - Responsible for creating Packet - Each packet contains - Universal Address of Sour

Drawback of repeaters, Drawback of  Repeaters. Repeater  has no filte...

Drawback of  Repeaters. Repeater  has no filtering capability as it forwards  every frame. Repeater shell  be placed  at accurate distance  before  actual  signal becomes

What is the purpose of cables being shielded, What is the purpose of cables...

What is the purpose of cables being shielded and having twisted pairs? The main purpose of this is to stop crosstalk. Crosstalks are electromagnetic interferences or noise that

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd