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Dynamic Time-Spectrum Block Allocation for Cognitive Radio Networks

  • US 20090196180A1
  • Filed: 04/02/2008
  • Published: 08/06/2009
  • Est. Priority Date: 12/01/2006
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • sensing communication spectrum utilization among peer nodes capable of using the communication spectrum;

    sharing white spaces in the communication spectrum for information transfer between sender-receiver pairs of the peer nodes;

    wherein sharing the white spaces includes optimizing utilization of the white spaces, including for each sender-receiver pair of the nodes, negotiating blocks of the white spaces for the information transfer, each block defined by negotiating an available frequency in the communication spectrum, a bandwidth in relation to the frequency, a starting time, and a duration to exchange the information using the frequency and the bandwidth; and

    reallocating the blocks at intervals according to changes in the spectrum utilization.

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