Enhanced puncturing and low-density parity-check (ldpc) code structure

An apparatus comprising:

• means for encoding a set of information bits based on a low-density parity-check (LDPC) code to produce a code word, the LDPC code defined by a base graph having a first number of variable nodes and a second number of check nodes;
• means for puncturing bits in the code word corresponding to at least two of the first number of variable nodes in the base graph to produce a punctured code word, wherein the base graph includes at least one additional variable node for the at least two punctured variable nodes, and wherein each additional variable node is connected to one check node, the check node coupled to a pair of punctured variable nodes;
• and
• means for transmitting a signal associated with the punctured code word.

An apparatus comprising:

• at least one processor coupled with a memory and configured to:
• encode a set of information bits based on a low-density parity-check (LDPC) code to produce a code word, the LDPC code defined by a base graph having a first number of variable nodes and a second number of check nodes;
• puncture bits in the code word corresponding to at least two of the first number of variable nodes in the base graph to produce a punctured code word, wherein the base graph includes at least one additional variable node for the at least two punctured variable nodes, and wherein each additional variable node is connected to one check node, the check node coupled to a pair of punctured variable nodes;
• and
• transmit a signal associated with the punctured code word.

A non-transitory computer readable medium having computer executable code stored thereon comprising:

• code for encoding a set of information bits based on a low-density parity-check (LDPC) code to produce a code word, the LDPC code defined by a base graph having a first number of variable nodes and a second number of check nodes;
• code for puncturing bits in the code word corresponding to at least two of the first number of variable nodes in the base graph to produce a punctured code word, wherein the base graph includes at least one additional variable node for the at least two punctured variable nodes, wherein each additional variable node is connected to one check node, the check node coupled to a pair of punctured variable nodes;
• and
• code for transmitting a signal associated with the punctured code word.