Constant envelope modulated unitary braid division multiplexing
AssigneeRampart Communications, Inc.
InventorsDaniel W. Chew, Sumant M. Pathak
Life of this patent
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Abstract
A transmitter may obtain a plurality of symbols encoding data to transmit wirelessly. A transmitter may transform the plurality of symbols using a unitary braid division multiplexing transform to produce a plurality of transformed symbols. A transmitter may scale the plurality of transformed symbols produce a plurality of scaled symbols. A transmitter may modulate a carrier signal by the plurality of scaled symbols to produce a constant envelope signal. A transmitter may transmit the modulated signal.
Claims24
A method comprising:
- obtaining a plurality of symbols encoding data to transmit wirelessly;
- transforming the plurality of symbols using a unitary braid division multiplexing transform to produce a plurality of transformed symbols, the unitary braid division multiplexing transform being implemented using one or more layers of linear transformations and one or more layers of nonlinear transformations;
- scaling the plurality of transformed symbols produce a plurality of scaled symbols;
- modulating a carrier signal by the plurality of scaled symbols to produce a constant envelope signal;
- and
- transmitting the constant envelope signal.
An apparatus comprising:
- a wireless transmitter configured to transmit wireless signals;
- and
- a processor configured to:
- obtain a plurality of symbols encoding data to transmit wirelessly;
- transform the plurality of symbols using a unitary braid division multiplexing transform to produce a plurality of transformed symbols, the unitary braid division multiplexing transform being implemented using one or more layers of linear transformations and one or more layers of nonlinear transformations;
- scale the plurality of transformed symbols to produce a plurality of scaled symbols;
- modulate a carrier signal by the plurality of scaled symbols to produce a constant envelope signal;
- and
- cause the wireless transmitter to transmit the constant envelope signal.
One or more non-transitory computer readable storage media encoded with software comprising computer executable instructions and, when the software is executed on a processor of a transmitter device, operable to cause the processor to:
- obtain a plurality of symbols encoding data to transmit wirelessly;
- transform the plurality of symbols using a unitary braid division multiplexing transform to produce a plurality of transformed symbols, the unitary braid division multiplexing transform being implemented using one or more layers of linear transformations and one or more layers of nonlinear transformations;
- scale the plurality of transformed symbols to produce a plurality of scaled symbols;
- modulate a carrier signal by the plurality of scaled symbols to produce a constant envelope signal;
- and
- transmit the constant envelope signal.
Dependencies are inferred from the claim text.