Forward error correction codes for MPEG2 over ATM

Author

Lei, Shaw-Min

Author_Institution

Bellcore, Red Bank, NJ, USA

Volume

4

Issue

2

fYear

1994

fDate

4/1/1994 12:00:00 AM

Firstpage

200

Lastpage

203

Abstract

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

Keywords

Reed-Solomon codes; asynchronous transfer mode; error correction codes; image coding; optical links; packet switching; video signals; ATM; FEC; MPEG2; asynchronous transfer mode; cell sequence number; cell sequence numbers; double-byte error patterns; error patterns; forward error correction codes; generator polynomials; line codes; scrambler codes; single-byte error patterns; single-error-correcting Reed-Solomon code; transport packet; Asynchronous transfer mode; Broadband communication; Error correction codes; Forward error correction; Local area networks; Payloads; Physical layer; Reed-Solomon codes; SONET; Synchronous digital hierarchy;

fLanguage

English

Journal_Title

Circuits and Systems for Video Technology, IEEE Transactions on

Publisher

ieee

ISSN

1051-8215

Type

jour

DOI

10.1109/76.285628

Filename

285628