Important: Use custom search function to get better results from our thousands of pages

Use " " for compulsory search eg:"electronics seminar" , use -" " for filter something eg: "electronics seminar" -"/tag/" (used for exclude results from tag pages)

Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Post: #1


.pptx  ERROR DETECTION.pptx (Size: 535.85 KB / Downloads: 35)

OSI MODEL (open systems interconnection) Position & Function of Data-Link layer

Frame Synchronization: The source machine sends data in block called frames to the destination machine. The starting and ending on each frame must be recognized by the destination machine.
Flow Control: The source machine should not send data frames at a rate faster than the destination machine can accept them.
Addressing: On multipoint line, such as many machine connected together (LAN), the identity of the individual machines must be specified while transmitting the data frames.
Error Control: The error made in the bits during transmission from the source to destination machines must be detected and corrected.



Unwanted Extra bit which is inserted somewhere in the communication channel causing error .


Thermal Noise : Due to thermal agitation of electrons. Present in
all electronic devices and is the function of temperature.

Impulse Noise: Due to electromagnetic interference(EMI). They may
be present in power lines, or in nature (lightning.. etc)

Delay Distortion : Due to non-uniform velocities of signals of
different frequencies traveling in a guided media. Various frequencies
of a message signal will arrive at different delays resulting in distortion.


Repetition Schemes: The data is broken up into blocks of bits , and sent some predetermined number of times.
Parity Schemes: A parity bit is error detection mechanism that can only detect an odd number of errors. The stream of data is broken up into blocks of bits and the number of “1” bits are counted.
Checksum: A checksum of a message is an arithmetic sum of the message code words of a certain word length. The sum is negated by means of one’s compliment, and stored or transferred as an extra code word extending the message.

Cyclic redundancy checks: The cyclic redundancy check considers a block of data as the coefficients to a polynomial and then divides by fixed, predetermined polynomial.

Hamming Distance based checks: If we want to detect d bit error in an n bit word we can map every n bit word into bigger n+d+1 bit word so that the minimum Hamming Distance between is valid mapping is d+1. This way, if one receives a n+d+1 word that doesn’t match any word in the mapping (with the Hamming distance x<=d+1 from any word in the mapping) it can successfully detect it’s as an error word.


In telecommunication a Hamming code is a linear error correction code named after its inventor, Richard Hamming. Since 1946 Richard Hamming (1915-1998) works on a model of calculator to perforated card low reliability.
Hamming codes can detect and correct single bit errors.


This limitation can be overcome by developing the code or extending the code from (7,4) to (11,8).
In Modern time this code has very less limit which can be developed and reconstructed by expanding the limit of the code.

Marked Categories : yhs 002, electronics project, free hamming code for error detection and corretion using embedded c, seminar on hamming code in ppt, electronics projects on error detection and correction, errors detection and correction ppt, error detection and correction of hamming code by matlab, report on 30 bit hamming code for error detection and correction using vhdl, error bit using hamming code ppt, ppt for seminar on hammin code, error correction using hamming code ppt, hamming code, hamming code for error detection and correction ppt, ppt on hamming code, error correction and detection using hamming code ppt, hamming code ppt, error detection and correction ppt,

Quick Reply
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  digital clock program using 8085 microprocessor Guest 0 0 Today 05:19 PM
Last Post: Guest
  contributor personality development project ppt chapter 2 Guest 1 131 Today 04:53 PM
Last Post: jaseela123
Information washing machine using 8085 Guest 1 0 Today 04:50 PM
Last Post: jaseela123
  radar simulation using optical sensor ppt Guest 1 183 Today 04:39 PM
Last Post: jaseela123
  packet video in video compression techniques ppt Guest 1 192 Today 04:31 PM
Last Post: jaseela123
  code for maze solving avr atmega2560 robot Guest 1 135 Today 04:23 PM
Last Post: jaseela123
  b tech 1st year surface chemistry notes ppt Guest 1 273 Today 04:13 PM
Last Post: jaseela123
  mirrorlink technology ppt download Guest 1 209 Today 03:59 PM
Last Post: jaseela123
  fabrication of oil pump testing equipment ppt Guest 1 217 Today 03:57 PM
Last Post: jaseela123
Smile voting machin using 8085 Guest 1 0 Today 03:49 PM
Last Post: jaseela123
This Page May Contain What is ERROR DETECTION AND CORRECTION USING HAMMING CODE(7,4) ppt And Latest Information/News About ERROR DETECTION AND CORRECTION USING HAMMING CODE(7,4) ppt,If Not ...Use Search to get more info about ERROR DETECTION AND CORRECTION USING HAMMING CODE(7,4) ppt Or Ask Here