A Complete Spectrum Sensing and Sharing Model for Cognitive Radio Ad Hoc Wireless Networks Using Markov Chain State Machine

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Author(s): Amir Rajaee (University of Texas at San Antonio, USA), Mahdy Saedy (University of Texas at San Antonio, USA)and Brian Kelley (University of Texas at San Antonio, USA)
Copyright: 2013
Pages: 13
Source title: Advancements and Innovations in Wireless Communications and Network Technologies
Source Author(s)/Editor(s): Michael Bartolacci (Penn State University - Berks, USA)and Steven R. Powell (California State Polytechnic University - Pomona, USA)
DOI: 10.4018/978-1-4666-2154-1.ch013

Keywords: Information Science Reference / Media & Communications / Networking and Telecommunications / Telecommunications

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Abstract

This paper presents the Cognitive Radio framework for wireless Ad Hoc networks. The proposed Cognitive Radio framework is a complete model for Cognitive Radio that describes the sensing and sharing procedures in wireless networks by introducing Queued Markov Chain method in spectrum sensing and Competitive Indexing Algorithm in spectrum sharing part. Queued Markov Chain method is capable of considering waiting time and is well generalized for an unlimited number of secondary users. It includes the sharing aspect of Cognitive Radio. Power-law distribution of node degree in scale-free networks is important for considering the traffic distribution and resource management thus we consider the effect of the topology on sensing and sharing performances. The authors demonstrate that CIF outperforms Uniform Indexing (UI) algorithm in Scale-Free networks while in Random networks UI performs as well as CIF.

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A Complete Spectrum Sensing and Sharing Model for Cognitive Radio Ad Hoc Wireless Networks Using Markov Chain State Machine

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