Abstract
In this paper, we describe the Spectrum Sharing methods for Cognitive Radio Networks in communications for ad hoc networks in general having Scale-Free and Random topology. Power-law distribution of node degree in scale-free networks is important for considering the traffic distribution and resource management. Competitive Indexing Algorithm (CIF) is proposed and shown to have better performance compared to Random Indexing (RI) in Spectrum Sharing. We demonstrate that CIF outperforms RI algorithm in Scale-Free networks while in Random networks RI performs as well as CIF.
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