Dynamic spectrum access for networked radios

摘要

A dynamic spectrum access method for cooperative wireless devices. In one example, a method of establishing a wireless network includes scanning and analyzing a selected frequency band to detect non-cooperative signals within the selected frequency band, determining whether a waveform including one or more radio frequency (RF) carriers and a plurality of intermodulation tones (for multi-carrier waveforms) can be placed within the selected frequency band without interfering with any detected non-cooperative signals, and selecting transmit frequencies for the plurality of RF carriers responsive to obtaining a non-interfering waveform placement solution.

主权项

1. A method of establishing a wireless network, the method comprising acts of:
scanning and analyzing a selected frequency band to detect non-cooperative signals within the selected frequency band; determining whether a waveform including a plurality of radio frequency (RF) carriers and a plurality of intermodulation tones can be placed within the selected frequency band without interfering with any detected non-cooperative signals, the act of determining including acts of selecting at least one frequency for at least one intermodulation tone of the plurality of intermodulation tones, placing the at least one intermodulation tone at the at least one frequency in the waveform, and evaluating interference with the any detected non-cooperating signals based on placing the at least one intermodulation tone in the waveform; selecting transmit frequencies for the plurality of RF carriers responsive to obtaining a non-interfering waveform placement solution; and transmitting the waveform using the selected transmit frequencies for the plurality of RF carriers and the at least one frequency for the at least one first intermodulation tone to establish the wireless network.