Patent ID: 7856584
Filing Date: 2010-12-21
Classification: H03M,H04L

Abstract:
1. An apparatus, including: a first encoder to encode a data word at a first code distance within a selected bit constellation utilizing a first unequal error protection (UEP) code to yield a first portion of a UEP codeword to be transmitted across a first channel subset of a multi-channel communications link, wherein the first channel subset is associated with a first channel reliability; and a second encoder to encode the data word at a second code distance utilizing a second UEP code to yield a second portion of the UEP codeword to be transmitted across a second channel subset of the multi-channel communications link, wherein the second channel subset is associated with a second channel reliability, the first code distance differs from the second code distance, the first channel reliability differs from the second channel reliability, and at least one of the first UEP code and the second UEP code comprises a low-density parity-check code.