Please use this identifier to cite or link to this item: http://hdl.handle.net/10609/17181
Title: A Secure and Anonymous Cooperative Sensing Protocol for Cognitive Radio Networks
Author: Rifà Pous, Helena
Garrigues Olivella, Carles
Keywords: authentication
cognitive radio
cooperative sensing
privacy
wireless physical layer security
Issue Date: 1-Nov-2011
Publisher: ACM Press
Citation: Rifà, H.; Garrigues, C.(2011). "A Secure and Anonymous Cooperative Sensing Protocol for Cognitive Radio Networks". A: International Conference on Security of Information and Networks. Sidney.
Abstract: Spectrum is an essential resource for the provision of mobile services. In order to control and delimit its use, governmental agencies set up regulatory policies. Unfortunately, such policies have led to a deficiency of spectrum as only few frequency bands are left unlicensed, and these are used for the majority of new emerging wireless applications. One promising way to alleviate the spectrum shortage problem is adopting a spectrum sharing paradigm in which frequency bands are used opportunistically. Cognitive radio is the key technology to enable this shift of paradigm. Cognitive radio networks are self-organized systems in which devices cooperate to use those spectrum ranges that are not occupied by licensed users. They carry out spectrum sensing in order to detect vacant channels that can be used for communication. Even though spectrum sensing is an active area of research, an important issue remains unsolved: the secure authentication of sensing reports. Not providing security enables the input of false data in the system thus empowering false results. This paper presents a distributed protocol based on wireless physical layer security, symmetric cryptography and one-way functions that allows determining a final sensing decision from multiple sources in a quick and secure way, as well as it preserves users¿ privacy.
Language: English
URI: http://hdl.handle.net/10609/17181
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