Robust cooperative spectrum sensing for cognitive radios

A non-transitory computer-readable storage medium containing computer-executable instructions that, in response to execution by a computing device, cause the computing device to perform acts comprising:

• receiving, at a second location, second information related to occupancy of a spectral band at one or more locations;
• receiving, by at least the second location, relayed third information related to at least a portion of first information related to occupancy of the spectral band at the one or more locations received at a first location;
• employing a rotational matrix to algebraically encode fourth information relating to the third information relayed from the first location to the second location and fifth information relating to at least a portion of the second information;
• and
• reporting, from the second location the fourth information and the fifth information to facilitate determining whether the spectral band is available to be occupied based at least in part on the fourth information and the fifth information.

A device for use in a spectrum sensing system, comprising:

• a processor;
• a memory communicatively coupled to the processor, and containing instructions comprising:
• a receiving component configured to receive received information related to the occupancy of a spectral band from a plurality of other devices;
• a sensing component configured to generate sensed information related to the occupation of the spectral band, as sensed at a location of the device;
• a fusing component configured to fuse the sensed information and the received information to form fused information;
• a transformation component configured to transform the fused information using a rotational matrix, for use, at least in part, in algebraic coding to generate transformed information;
• a determination component configured to generate, based at least in part on the transformed information, a determination of whether to occupy the spectral band;
• and
• a reporting component configured to report the determination of whether to occupy the spectral band.

A system, comprising:

• means for sensing information related to the occupation of a spectral band at a location of a device yielding sensed information;
• means for receiving received information related to the occupancy of the spectral band from at least one other device;
• means for fusing the sensed information and the received information to form fused information;
• means for transforming the fused information using a rotational matrix, for use, at least in part, in algebraic coding to generate transformed information;
• and
• means for determining, based at least in part on the transformed information, whether to occupy the spectral band.