Method for Signaling Information by Modifying Modulation Constellations

1. A method of decoding encoded information by a wireless communication device, comprising: receiving a data unit including encoded information comprising one or more variable length low density parity check (LDPC) codewords from a network device; decoding a length of the encoded information from a header of the data unit; determining, based at least in part on the decoded length, the length of each of the one or more LDPC codewords; and decoding the one or more LDPC codewords.

2. The method of claim 1 , wherein decoding the one or more LDPC codewords comprises, for each of the one or more LDPC codewords: determining a plurality of variable node values; and determining a plurality of check node values, corresponding to parity check relationships, based on the variable node values and a parity check matrix.

3. The method of claim 1 , wherein decoding the one or more LDPC codewords comprises using a Bahl, Cocke, Jelinek and Raviv (BCJR) algorithm.

4. The method of claim 1 , wherein decoding the one or more LDPC codewords comprises using a min-sum algorithm.

5. The method of claim 1 , wherein decoding the one or more LDPC codewords comprises using a plurality of decoding iterations.

6. The method of claim 5 , wherein the plurality of decoding iterations consist of eight decoding iterations.

7. A wireless communication device, including a memory and one or more antennas, the device capable to: receive a data unit including encoded information comprising one or more variable length low density parity check (LDPC) codewords from a network device; decode a length of the encoded information from a header of the data unit; determine, based at least in part on the decoded length, the length of each of the one or more LDPC codewords; and decode the one or more LDPC codewords.

8. The device of claim 7 , wherein the device is further capable to decode the one or more LDPC codewords, for each of the one or more LDPC codewords, by being configured to: determine a plurality of variable node values; and determine a plurality of check node values, corresponding to parity check relationships, based on the variable node values and a parity check matrix.

9. The device of claim 7 , wherein the device is further capable to decode the one or more LDPC codewords via a Bahl, Cocke, Jelinek and Raviv (BCJR) algorithm.

10. The device of claim 7 , wherein the device is further capable to decode one or more LDPC codewords via a min-sum algorithm.

11. The device of claim 7 , wherein the device is further capable to decode the one or more LDPC codewords via a plurality of decoding iterations.

12. The device of claim 11 , wherein the plurality of decoding iterations consists of eight decoding iterations.