Backward Error Correction Definition
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re-send information. Backward Error Correction is used in situations where some of the transmitted data has been lost or corrupted during transit and the transmitting device must resend the information in order for the forward and backward error correction receiving device to understand the transmission. Backward Error Correction is the opposite of “Forward
Comprehensive Error Correction Definition
Error Correction”, in which a transmitting device simply sends redundant information to make up for any potential errors. How Backward Error
Error Correction Model Definition
Correction Works Backward Error Correction is dependent on a number of protocols and algorithms, such as parity bits, cyclic redundancy checks, and longitudinal redundancy checks, but relies on the same procedure. As usual, a transmitting
Error Correction Code Definition
device will send data to a receiving device. The receiving device will then run checks to ensure that all of the information is present, readable, and makes sense. If the received information does not make sense, is not all there, or cannot be read for any reason, the receiving device will send a request to the transmitting device to resend that data. Applications Backward Error Correction is often used hamming distance error correction instead of Forward Error Correction because it requires less bandwidth. However, because Backward Error Correction requires the receiving device to receive a signal before it requests redundant information, it requires more time than Forward Error Correction and may even use more bandwidth for individual transfers due to constant messaging between the two devices. While Forward Error Correction is usually preferred on systems that are prone to errors, such as long-distance communications systems, Backward Error Correction is ideal for systems that rarely have errors or only handle small amounts of data. Follow Us! Rate this article: ★ ★ ★ ★ ★ Backward Error Correction (BEC), 4.67 / 5 (3 votes) You need to enable JavaScript to vote Mail this article Print this article Last updated 11 March, 2016. Related Posts Feedhorn The feedhorn is the part of a satellite dish system which gathers the reflected signal ... How Satellite Images Are Made Satellite images are taken by reconnaissance satellites that orbit the Earth at a relatively low ... DVB-RCS DVB-RCS stands for Digital Video Broadcast - Return Channel Satellite. DVB-RCS is part of the ... Search for: ReferenceSoftware Tutorials Unit Conversion Practice Tests Web Tools Site Index Audio-Video Databases Electronics File Compression File Conversion Gaming Graphics Hardware Internet IT Management Macintosh
View all reference sources FREE REFERENCE ENTRIES A B C D E F G H I J K L M N reverse error correction O P Q R S T U V W X define error correction Y Z # Home Dictionaries, Thesauruses, Pictures, and Press Releases A Dictionary of Computing January 2004 backward difference between forward and backward error correction error correction Print this article Cite this article Tools A Dictionary of Computing | 2004 | 700+ words © A Dictionary of Computing 2004, originally published http://www.tech-faq.com/backward-error-correction-bec.html by Oxford University Press 2004. backward error correction (backward correction) Error correction that occurs in a channel through the detection of errors by the receiver: the receiver responds to any errors in a block by requesting the transmitter to retransmit the affected block. Backward correction requires a return channel, by contrast with forward error http://www.encyclopedia.com/doc/1O11-backwarderrorcorrection.html correction.There are two ways in which the return channel can be used to indicate errors: positive acknowledgment and negative acknowledgment. With positive acknowledgment, the receiver returns confirmation of each block received correctly, and the transmitter is prepared to retransmit a block that is not acknowledged within an appropriate time. With negative acknowledgment, the receiver returns a request to retransmit any block received erroneously, and the transmitter is prepared to retransmit such a block (implying that the transmitter retains a copy of every block sent, indefinitely).Since the return channel itself may be prone to errors, and to limit the amount of storage necessary at the transmitter, the positive acknowledgment and retransmission (PAR) technique is generally preferred. See also error-detecting code. Cite this article Pick a style below, and copy the text for your bibliography. MLA Chicago APA JOHN DAINTITH. "backward error correction." A Dictionary of Computing. 2004. Encyclopedia.com. 1 Oct. 2016
Power Line Broadband over power line (BPL) is the transmission of data over existing electrical wire using frequencies outside the range of AC power. https://www.techopedia.com/definition/824/forward-error-correction-fec Special networking equipment is required to translate electrical signals into data. https://www.tutorialspoint.com/data_communication_computer_network/error_detection_and_correction.htm They can be used as a long-range means of internet access as well as for smart power grids. Read more Newest Terms Cache Server Performance Counter Object Level Recovery Index Defragmentation SQL Server Business Intelligence SQL Server Integration Services Alternative SQL Query Blob Storage error correction Job Chaining Cross-Product Dashboard View All... Top Categories Communication Data Development Enterprise Hardware Internet IT Business Networking Security Software View Tag Cloud... Cloud Computing The Cloud: The Ultimate Tool for Big Data Success The New Efficiency of Cloud Analytics Education Must Turn to the Cloud More Recent Content in Cloud Computing Is the Cloud Ready for backward error correction the Enterprise? The Innovative Disruption of the Cloud How the Cloud is Changing the Work Landscape View All... Cloud Computing Home Virtualization Buzzwords and Jargon Software-as-a-Service (SaaS) Distributed Computing Data Centers Open Source Big Data Blob Storage Cloud Archive Cloud Communications Insights as a Service Virtual Desktop Infrastructure Cloud Industry Cloud Cloud Sprawl Global File System Managed Cloud Jet Propulsion Laboratory Security Channeling the Human Element: Policy, Procedure and Process The Persistence of Digital Rights Management The Chip in the Card: EMV Chip Promises Increased Security for Payments More Recent Content in Security Your IT’s Risks are Hiding - Can You Spot Them? Managing Cloud Sprawl in Your Organization 5 Solutions to Counter Mobile Security Threats View All... Security Home Hacking Data Centers Forensics Legal Viruses Software Clickjacking Bullet Camera Disaster Recovery Team British Standards Institution Attack Vector Cipher Block Chaining Communications Assistance For Law Enforcement Act Privilege Facial Recognition Cyberterrorism Big Data Protecting Your Brand Value with Big Data How Big Data Can Driv
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 - Transmission media DCN - Wireless Transmission DCN - Multiplexing DCN - Network Switching Data Link Layer DCN - Data Link Layer Introduction DCN - Error detection and Correction DCN - Data Link Control & 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 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 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 Fr