DVB-C2, the successor of DVB-C, contains a subset of the LDPC codes as defined in DVB-S2. A single code is used (64800 bits, code rate 2/3) that was introduced with DVB-T2 only. Since for cable networks high signal-to-noise ratios are common, the lower code rates have been removed allowing for a reduced decoder complexity. The code with the lowest code rate (16200 bits, code rate 4/9) is only used for the sending of signalling information.
|Frame structure channel coding and modulation for a second generation digital transmission system for cable systems.|
|Documents||ETSI EN 302 769|
|Applications||Digital transmission for cable networks.|
|IP Cores||Creonic DVB-C2 LDPC/BCH Decoder IP Core|
|Block Length||Submatrix Size||Code Rates|
4/9, 2/3, 11/15, 7/9, 37/45, 8/9
2/3, 3/4, 4/5, 5/6, 9/10