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What is Forward Error Correction (FEC)

Chapter 158
Encyclopedia of Networked and Virtual Organizations
A method for performing error control in data transmission in which the source sends redundant data and the destination recognizes only the portion of the data that contains no apparent errors. FEC differs from standard error detection and correction in that the technique is specifically designed to allow the receiver to correct some errors without having to request a retransmission of data. It is thus specially suited for interactive or delay sensitive multimedia networked applications. FEC codes impose a greater bandwidth overhead than backward error correction protocols, but are able to recover from errors more quickly and with significantly fewer re-transmissions.
Published in Chapter:
Performance Analysis of Multimedia Traffic
Federico Montesino Pouzols (University of Seville, Spain), Angel Barriga Barros (University of Seville, Spain), Diego R. Lopez (RedIRIS, Spain), and Santiago Sánchez-Solano (CSIC - Scientific Research Council, Spain)
Copyright: © 2008 |Pages: 6
DOI: 10.4018/978-1-59904-885-7.ch158
Abstract
Videoconferencing and multimedia communication technologies in general are gaining momentum with the development of networked organizations. Efforts are currently underway to further adapt multimedia technologies to virtual organizations where multimedia communications find applications in training and education, customer relationships management, enterprise resource planning and many other areas (Camarinha-Matos, 2002).
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Chapter 604
Transmission of Scalable Video in Computer Networks
A method for error correction that uses redundant bits to detect and correct errors in data without the need for retransmission.
Published in Chapter: Transmission of Scalable Video in Computer Networks; From: Encyclopedia of Information Science and Technology, Second Edition
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