| 摘要 |
<p>A system/method is shown for reusing digital video broadcasting for satellite, second generation (DVB-S2), low-density parity check (LDPC) codes, and hence also DVB-S2 hardware, in digital video broadcasting for cable, second generation (DVB-C2) contexts. LDPC codes are susceptible to an error threshold, beyond which the coded information cannot be accurately retrieved. By matching the varying levels of protection within an LDPC codeword with the varying levels of protection in quadrature amplitude modulation, the number of errors can be kept below the error threshold.</p> |
