1
Scope
2 References
3 Terms and
definitions
4 Abbreviations
5 FEC features
5.1 General principles of the FEC
function
5.2 Error monitoring capability
5.3 Interest of the FEC function for
submarine systems
5.4 Inter-terminal channels
6 Definition of the FEC function
6.1 Definitions
6.2 Forward Error Correction algorithm
6.3 Properties of the RS(255,239) code
6.4 FEC frame structure
6.4.1 FEC encoder and FEC decoder
architectures
6.4.2 Framing structure
6.4.3 Scrambling
6.4.4 Redundancy ratio
7 FEC function performance
7.1 Theoretical FEC function
performance
7.2 Coding gain
Appendix I -FEC frame structure
(optional)
I.1 FEC encoder and FEC decoder
architecture
I.2 Framing structure
I.3 Scrambling
I.4 Redundancy ratio