Signal power reduction systems and methods

1. A method of reducing transmission power for an encoded data stream comprising the steps of:

receiving an incoming data stream having a first average transmit power for a plurality of incoming data bits;

assigning a symbol scheme to the received data bits of the incoming data stream according to probabilities of occurrence of individual ones of the received data bits; and

transmitting an outgoing data stream according to the assigned symbol scheme having a second average transmit power, different than the first average transmit power, for a plurality of outgoing symbols,

wherein the assigned symbol scheme is a lesser state scheme relative to a symbol scheme having equal probability states, and

wherein the assigned symbol scheme represents a one-dimensional constellation diagram, and the symbol scheme having equal probability states represents a two-dimensional constellation diagram.

2. The method of claim 1 further comprising, in the step of assigning, determining the probabilities of occurrence of a sequence of the individual ones of the received data bits.

3. The method of claim 2 , wherein in the step of assigning, higher power symbols are determined to be less probable than lower power symbols.

4. The method of claim 1 , wherein:

the step of receiving comprises receiving the incoming data stream at a first bandwidth; and

the step of transmitting comprises transmitting the outgoing data stream at a second bandwidth greater than the first bandwidth.

5. The method of claim 1 , wherein the assigned symbol scheme is a 3-state scheme.

6. The method of claim 1 , wherein the assigned symbol scheme is an amplitude shift keying (ASK) symbol scheme.

7. The method of claim 1 , wherein a ratio of second average transmit power to first average transmit power is 3:5 or lower.

8. The method of claim 7 , wherein the ratio of second average transmit power to first average transmit power is 1:2 or lower.

9. The method of claim 1 , wherein the step of receiving comprises receiving the incoming data stream encoded using an encoding scheme including at least one of quadrature amplitude modulation scheme (QAM), Quadrature phase shift keying (QPSK), ASK, and binary amplitude-shift keying (BASK).

10. A symbol transmission system for an encoded data stream comprising:

a memory; and

a processor communicatively coupled with the memory, said processor programmed to execute instructions to:

receive an incoming data stream;

determine a probability of a binary bit stream represented by the incoming data stream;

assign a symbol scheme to the binary bit stream based on the determined probability; and

transmit an outgoing data stream according to the assigned symbol scheme,

wherein the processor is further configured to adapt the assigned symbol scheme to a lower probability encoding scheme where power is limited, and to adapt the assigned symbol scheme to an equal probability encoding scheme where transmit time is limited.

11. The system of claim 10 , wherein the memory includes at least one lookup table.

12. The system of claim 10 , wherein the incoming data stream includes a plurality sequences having an equal probability of occurrence.

13. The system of claim 12 , wherein the assigned symbol scheme includes a plurality of symbols having an unequal probability of occurrence.

14. A method of reducing transmission power for an encoded data stream comprising the steps of:

receiving an incoming data stream having a first average transmit power for a plurality of incoming data bits;

assigning a symbol scheme to the received data bits of the incoming data stream according to probabilities of occurrence of individual ones of the received data bits; and

transmitting an outgoing data stream according to the assigned symbol scheme having a second average transmit power, different than the first average transmit power, for a plurality of outgoing symbols,

wherein a ratio of second average transmit power to first average transmit power is 3:5 or lower.

15. The method of claim 14 , wherein the ratio of second average transmit power to first average transmit power is 1:2 or lower.