A primary user authentication system for mobile cognitive radio networks

Swathi Chandrashekar, Loukas Lazos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

Cognitive radio networks (CRNs) exploit the idle portion of the licensed spectrum to establish network communications. Essential to the co-existence of this technology with legacy systems, is the reliable sensing of spectrum opportunities. However, existing spectrum sensing techniques are vulnerable to adversaries that mimic the characteristics of Primary User (PU) transmissions in order to reduce the bandwidth availability for the CRN. In this paper, we address the problem of authenticating the PU signal in order to mitigate PU emulation attacks. We propose a PU authentication system based on the deployment of "helper" nodes, fixed within the geographical area of the CRN. Our system relies on a combination of physical-layer signatures (link signatures) and cryptographic mechanisms to reliably sense PU activity and relay information to the CRN. Compared to prior work, our system can accommodate mobile secondary users and can be implemented with relatively low-power helpers.

Original languageEnglish (US)
Title of host publication2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies, ISABEL 2010
DOIs
StatePublished - Dec 1 2010
Event2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies, ISABEL 2010 - Roma, Italy
Duration: Nov 7 2010Nov 10 2010

Publication series

Name2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies, ISABEL 2010

Other

Other2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies, ISABEL 2010
CountryItaly
CityRoma
Period11/7/1011/10/10

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ASJC Scopus subject areas

  • Biomedical Engineering
  • Health Informatics

Cite this

Chandrashekar, S., & Lazos, L. (2010). A primary user authentication system for mobile cognitive radio networks. In 2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies, ISABEL 2010 [5702859] (2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies, ISABEL 2010). https://doi.org/10.1109/ISABEL.2010.5702859