Error correction - retransmission, Computer Networking

Assignment Help:

When an error is discovered the receiver is able to ask the sender to retransmit the entire data unit

Error Correction-Forward Error Correction

  • A receiver is able to use an error-correcting code which automatically corrects certain errors
  • Single-bit errors
  • Is able to be detected by the addition of parity bit which helps to find "error" or "no error" which is sufficient to detect errors
  • To correct errors the receiver is able to simply invert 0 to 1 or 1 to 0 but the problem is "locating" the position of error
  • To do thus requires enough redundancy bits
  • Condition: 2r >= m + r + 1

 


Related Discussions:- Error correction - retransmission

Describe about the noiseless channel, Describe about the noiseless channel ...

Describe about the noiseless channel A noiseless channel can transmit an arbitrarily large amount of information, no matter how frequently it is sampled. Just send a lot of dat

5 igrp supports a feature , 5 IGRP supports a feature that permits traffic ...

5 IGRP supports a feature that permits traffic to be distributed among up to 6 (4 default) paths to give greater allover throughput and reliability. What is this called? Ans) An

Message oriented middleware , What is Message Oriented Middleware (MOM)? ...

What is Message Oriented Middleware (MOM)? Ans) MOM permits general purpose messages to be exchanged in a Client/Server system using message queues. Applications communicate ove

Define the term socks- network security, Define the term Socks- Network sec...

Define the term Socks- Network security As it is well known, each type of network security protects data at a different layer of the OSI model. Built-in at each layer lies the

Path layer - sonet sdh , Path Layer The path  layer maps services  such...

Path Layer The path  layer maps services  such as DS3, FDDI, and ATM into the SONET  payload formal. This layer  provides  end to end  communications  signals  labelling path m

Common syntax of openmp, Q. Common syntax of OpenMP? Every OpenMP direc...

Q. Common syntax of OpenMP? Every OpenMP directive begins with #pragma omp. The common syntax is   #pragma omp directive-name [Set of clauses]  where omp is an OpenMP key

State the process of calculate the drift rate, State the process of calcula...

State the process of calculate the drift rate A drift rate of 10 -9 means 1 second in 109 seconds or 1 nsec every second. At OC-1 speed, say 50 Mbps for simplicity, a bit las

Explain transparent bridges and learning bridges, Transparent Bridges & Lea...

Transparent Bridges & Learning Bridges - Builds table by examining destination as well as source address of each packet it receives - Learning bridges - If address is not

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