Identifying devices with transpositional modulation

A non-transitory computer readable storage medium storing instructions that, when executed by at least one processor, cause the at least one processor to perform operations comprising:

• controlling a transmitter of a first device to transmit a transmission signal that includes a carrier signal modulated with a TM signal, wherein the TM signal is a carrier modulated signal that conveys information by altering a harmonic of the carrier signal and not directly altering an amplitude, a phase, or a frequency of the carrier signal;
• receiving, from the receiver, a response signal from a second device in response to the transmission signal;
• and
• determining, by the first device, whether the response signal includes the TM signal.

A method for identifying transpositional modulation (TM) capable devices, the method comprising:

• receiving a transmission signal from a first device, the transmission signal including a carrier signal modulated with a first transpositional modulation (TM) signal, wherein the TM signal is a carrier modulated signal that conveys information by altering a harmonic of the carrier signal and not directly altering an amplitude, a phase, or a frequency of the carrier signal;
• identifying the first TM signal within the transmission signal;
• and
• controlling a transmitter of a second device to send, to the first device, a response signal that includes data encoded within a second TM signal.