Method and apparatus providing decentralized, goal-orientated adaptive learning in an adaptive orthogonal frequency division multiplex communication system
First Claim
1. A method for operating an orthogonal frequency division multiplexing (OFDM) communications system, comprising:
- when transmitting data over a plurality of OFDM sub-channels from an OFDM transmitter to an OFDM receiver through a channel,operating a co-operative adaptive learning automaton comprised of a plurality of automata to adjust values of modulation coding scheme (MCS) switching thresholds so as to maximize at least one selected performance criterion;
based on the values of the switching thresholds, selecting a MCS and modulating data with the selected MCS; and
transmitting the modulated data over at least some of the sub-channels.
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Abstract
Disclosed is an OFDM communications system and a method of operating the OFDM communications system. The system includes an OFDM transmitter for transmitting data over a plurality of OFDM sub-channels, where the OFDM transmitter has a plurality of modulators of different types. The system further includes an OFDM receiver for receiving the data from the plurality of OFDM sub-channels, where the OFDM receiver has a plurality of corresponding demodulators of the different types. The system further includes, in accordance with this invention, an adaptive learning automata that contains a group or team of independent, decentralized automaton operating in accordance with a game theory-based approach. Each of the plurality of automaton are responsible for managing one MCS switching threshold value so as to maximize at least one selected performance criterion. The OFDM transmitter is responsive to the MCS switching thresholds for selecting an appropriate one or ones of said modulators for modulating the data for various ones of the sub-channels.
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Citations
30 Claims
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1. A method for operating an orthogonal frequency division multiplexing (OFDM) communications system, comprising:
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when transmitting data over a plurality of OFDM sub-channels from an OFDM transmitter to an OFDM receiver through a channel, operating a co-operative adaptive learning automaton comprised of a plurality of automata to adjust values of modulation coding scheme (MCS) switching thresholds so as to maximize at least one selected performance criterion; based on the values of the switching thresholds, selecting a MCS and modulating data with the selected MCS; and transmitting the modulated data over at least some of the sub-channels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An orthogonal frequency division multiplexing (OFDM) communications system, comprising:
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an OFDM transmitter for transmitting data over a plurality of OFDM sub-channels, said OFDM transmitter comprising a plurality of modulators of different types; an OFDM receiver for receiving the data from the plurality of OFDM sub-channels, said OFDM receiver comprising a plurality of corresponding demodulators of the different types; and an adaptive learning automaton comprised of a group of independent, decentralized automata operating in accordance with a game theory-based approach, each of the plurality of a automata being responsible for managing one modulation coding scheme (MCS) switching threshold value so as to maximize at least one selected performance criterion, said OFDM transmitter being responsive to the MCS switching thresholds for selecting an appropriate one or ones of said modulators for modulating the data for various ones of the sub-channels. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification