SPECTRUM SHARING WITH IMPLICIT POWER CONTROL IN COGNITIVE RADIO NETWORKS
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United States of America Patent
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Issued Date -
May 3, 2012
app pub date -
Apr 19, 2011
filing date -
Oct 27, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Providing for a cross-layer spectrum sharing model incorporating implicit power control for cognitive radio wireless communication is described herein. By way of example, a binary integer linear programming problem is formulated to establish active wireless links among secondary user nodes in a cognitive radio, ad-hoc network. The formulation reuses wireless channels among multiple activated links within disclosed interference constraints, and assigns a power level for transmissions on respective links. Additionally, the formulation employs bi-directional wireless links for the ad-hoc network, improving communication within the ad-hoc network. Further, power level assignments can be predefined and implicitly embedded in the formulation to reduce complexity.
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