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Error Correction Techniques In Data Link Layer

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DCN - Network LAN Technologies DCN - Computer Network Topologies DCN - Computer Network Models DCN - Computer Network Security Physical Layer DCN - Physical Layer Introduction DCN - Digital Transmission DCN - Analog Transmission DCN error detection and correction in data link layer - Transmission media DCN - Wireless Transmission DCN - Multiplexing DCN - Network Switching error detection and correction in data link layer ppt Data Link Layer DCN - Data Link Layer Introduction DCN - Error detection and Correction DCN - Data Link Control & data link layer error detection and correction pdf Protocols Network Layer DCN - Network Layer Introduction DCN - Network Addressing DCN - Routing DCN - Internetworking DCN - Network Layer Protocols Transport Layer DCN - Transport Layer Introduction DCN - Transmission Control Protocol framing techniques in data link layer DCN - User Datagram Protocol Application Layer DCN - Application Layer Introduction DCN - Client-Server Model DCN - Application Protocols DCN - Network Services DCN Useful Resources DCN - Quick Guide DCN - Useful Resources DCN - Discussion Selected Reading Developer's Best Practices Questions and Answers Effective Resume Writing HR Interview Questions Computer Glossary Who is Who DCN - Error Detection & Correction Advertisements Previous Page Next Page There are

Error Detection Methods In Data Link Layer

many reasons such as noise, cross-talk etc., which may help data to get corrupted during transmission. The upper layers work on some generalized view of network architecture and are not aware of actual hardware data processing.Hence, the upper layers expect error-free transmission between the systems. Most of the applications would not function expectedly if they receive erroneous data. Applications such as voice and video may not be that affected and with some errors they may still function well. Data-link layer uses some error control mechanism to ensure that frames (data bit streams) are transmitted with certain level of accuracy. But to understand how errors is controlled, it is essential to know what types of errors may occur. Types of Errors There may be three types of errors: Single bit error In a frame, there is only one bit, anywhere though, which is corrupt. Multiple bits error Frame is received with more than one bits in corrupted state. Burst error Frame contains more than1 consecutive bits corrupted. Error control mechanism may involve two possible ways: Error detection Error correction Error Detection Errors in the received frames are detected by means of Parity Check and Cyclic Redundancy Check (CRC). In both cases, few extra bits are sent along with actual data to

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Error Detection And Correction In Computer Networks Pdf

remove this template message) In information theory and coding theory error detection and correction techniques with applications in computer science and telecommunication, error detection and correction or error control are error control in data link layer techniques that enable reliable delivery of digital data over unreliable communication channels. Many communication channels are subject to channel noise, and thus errors may be https://www.tutorialspoint.com/data_communication_computer_network/error_detection_and_correction.htm introduced during transmission from the source to a receiver. Error detection techniques allow detecting such errors, while error correction enables reconstruction of the original data in many cases. Contents 1 Definitions 2 History 3 Introduction 4 Implementation 5 Error detection schemes 5.1 Repetition codes 5.2 Parity bits 5.3 Checksums 5.4 Cyclic https://en.wikipedia.org/wiki/Error_detection_and_correction redundancy checks (CRCs) 5.5 Cryptographic hash functions 5.6 Error-correcting codes 6 Error correction 6.1 Automatic repeat request (ARQ) 6.2 Error-correcting code 6.3 Hybrid schemes 7 Applications 7.1 Internet 7.2 Deep-space telecommunications 7.3 Satellite broadcasting (DVB) 7.4 Data storage 7.5 Error-correcting memory 8 See also 9 References 10 Further reading 11 External links Definitions[edit] The general definitions of the terms are as follows: Error detection is the detection of errors caused by noise or other impairments during transmission from the transmitter to the receiver. Error correction is the detection of errors and reconstruction of the original, error-free data. History[edit] The modern development of error-correcting codes in 1947 is due to Richard W. Hamming.[1] A description of Hamming's code appeared in Claude Shannon's A Mathematical Theory of Communication[2] and was quickly generalized by Marcel J. E. Golay.[3] Introduction[edit] The general idea for achieving error detection and correction is to add some redu

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details. SlideShare Explore http://www.slideshare.net/kewalramani_renu/error-detection-and-correction-12980998 Search You Upload Login Signup Home Technology Education More Topics For Uploaders Get Started Tips & Tricks Tools Error Detection And Correction Upcoming SlideShare Loading in …5 × 1 1 of 32 Like this presentation? Why not share! Share Email Error detection and correction bySiddique Ibrahim 13795views Computer Networks - Error Detection... bySaikrishna Tanguturu 12458views Errror Detection and Correction byMahesh Attri 9840views Error control, parity check, check ... byHuawei Technologies 35373views Error Detection and Correction - Da... data link byAbdullaziz Tagawy 3746views Error detection and correction byMaria Akther 8069views Share SlideShare Facebook Twitter LinkedIn Google+ Email Email sent successfully! Embed Size (px) Start on Show related SlideShares at end WordPress Shortcode Link Error Detection And Correction 41,581 views Share Like Download Renu Kewalramani, SEO Executive and technical writer Follow 0 0 0 Published on May 18, 2012 error detection and error correction methods used while sending the data ... 1 Comment 45 Likes Statistics Notes Full data link layer Name Comment goes here. 12 hours ago Delete Reply Spam Block Are you sure you want to Yes No Your message goes here Post ayan mitra i am a student of computer science..i need help for project..can anyone tell which is the best project of error detection and correction in hamming code 5 months ago Reply Are you sure you want to Yes No Your message goes here alageshaj003 4 days ago abhishek8409 5 days ago Mark Rennier Dimalanta , Attended University of Luzon 1 week ago Arun Prabhakar , Student at Slcs 2 weeks ago Indhu mathi , Student at Francis Xavier Engineering College 1 month ago Show More No Downloads Views Total views 41,581 On SlideShare 0 From Embeds 0 Number of Embeds 29 Actions Shares 0 Downloads 2,731 Comments 1 Likes 45 Embeds 0 No embeds No notes for slide Error Detection And Correction 1. ERRORCORRECTION & ERRORDETECTION Rutvi Shah 1 2.  Data can be corrupted during transmission. For reliable communication, errors must be detected and corrected. Error detection and correction are implemented either at data link layer or the transport layer of the OSI model. Rutvi Shah 2 3. TYPES OF ERRORS Single bit error :- - Only one bit in the data unit has changed. Burst error :- - It means that two or more bits in the data unit has changed. Rutvi Shah 3 4. Single bit

 

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