Probabilistic amplitude shaping including energy selection, composition determination, and amplitude symbol sequence determination

A wireless communication device comprising:

• at least one modem;
• at least one processor communicatively coupled with the at least one modem;
• and
• at least one memory communicatively coupled with the at least one processor and storing processor-readable code that, when executed by the at least one processor in conjunction with the at least one modem, is configured to:
• generate a plurality of information bits;
• access a first plurality of cumulative sequence quantities, each cumulative sequence quantity of the first plurality of cumulative sequence quantities representing a quantity of symbol sequences of a length (n) and having at most a respective energy level;
• process the first plurality of cumulative sequence quantities, including selecting a first energy level based at least in part on the plurality of information bits and the first plurality of cumulative sequence quantities;
• determine a composition of an output symbol sequence from among a first set of symbol sequences having the first energy level, including performing a plurality of iterations to identify a plurality of elements of the composition, a quantity of the plurality of iterations being related to a size of a symbol alphabet;
• and
• determine the output symbol sequence, including determining a plurality (n) of amplitude symbols of the output symbol sequence based at least in part on the composition and the plurality of information bits;
• and
• transmit a wireless packet to at least one receiving device based on the output symbol sequence.

A wireless communication device configured to encode a plurality (k) of information bits, the wireless communication device comprising:

• means for accessing a first plurality of cumulative sequence quantities, each cumulative sequence quantity of the first plurality of cumulative sequence quantities representing a quantity of symbol sequences of a length (n) and having at most a respective energy level;
• means for selecting a first energy level based at least in part on the plurality of information bits and the first plurality of cumulative sequence quantities;
• means for determining a composition of an output symbol sequence from among a first set of symbol sequences having the first energy level, including;
• means for determining a plurality (n) of amplitude symbols of the output symbol sequence based at least in part on the composition and the plurality of information bits;
• and
• means for transmitting a wireless packet to at least one receiving device based on the output symbol sequence.