Forward error correction codes for MPEG2 over ATM

Transport of MPEG2 video and associated audio and data over ATM (asynchronous transfer mode) networks has attracted much interest. A defined MPEG2 transport packet of 188 bytes can fit into 4 ATM cells with 32 bits left for forward error correction (FEC) codes and cell sequence numbers. The author d...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems for video technology 1994-04, Vol.4 (2), p.200-203
Main Author: Lei, Shaw-Min
Format: Article
Language:English
Subjects:
Applied sciences
Asynchronous transfer mode
Broadband communication
Coding, codes
Error correction codes
Exact sciences and technology
Forward error correction
Information, signal and communications theory
Local area networks
Payloads
Physical layer
Reed-Solomon codes
Signal and communications theory
SONET
Synchronous digital hierarchy
Telecommunications and information theory
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Summary:Transport of MPEG2 video and associated audio and data over ATM (asynchronous transfer mode) networks has attracted much interest. A defined MPEG2 transport packet of 188 bytes can fit into 4 ATM cells with 32 bits left for forward error correction (FEC) codes and cell sequence numbers. The author discusses the design of FECs to correct the error patterns generated by different scrambler and line codes used by several ATM physical layers. By choosing generator polynomials carefully, a single-error-correcting Reed-Solomon code can correct not only the single-byte error patterns but also the double-byte error patterns processed by a scrambler. A method of distributing 16 bits of FEC into 4 ATM cells (thus, 4 bits of FEC each cell) to accommodate a cell sequence number in each cell is also given.< >
ISSN:1051-8215
1558-2205
DOI:10.1109/76.285628