Secure collaborative sensing for crowdsourcing spectrum data in white space networks

Omid Fatemieh, Ranveer Chandra, Carl A. Gunter

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

Abstract

Collaborative Sensing is an important enabling technique for realizing opportunistic spectrum access in white space (cognitive radio) networks.We consider the security ramifications of crowdsourcing of spectrum sensing in presence of malicious users that report false measurements. We propose viewing the area of interest as a grid of square cells and using it to identify and disregard false measurements. The proposed mechanism is based on identifying outlier measurements inside each cell, as well as corroboration among neighboring cells in a hierarchical structure to identify cells with significant number of malicious nodes. We provide a framework for taking into consideration inherent uncertainties, such as loss due to distance and shadowing, to reduce the likelihood of inaccurate classification of legitimate measurements as outliers. We use simulations to evaluate the effectiveness of the proposed approach against attackers with varying degrees of sophistication. The results show that depending on the attacker-type and location parameters, in the worst case we can nullify the effect of up to 41% of attacker nodes in a particular region. This figure is as high as 100% for a large subset of scenarios.

Original languageEnglish (US)
Title of host publication2010 IEEE Symposium on New Frontiers in Dynamic Spectrum, DySPAN 2010
DOIs
StatePublished - Jun 11 2010
Event2010 IEEE Symposium on New Frontiers in Dynamic Spectrum, DySPAN 2010 - Singapore, Singapore
Duration: Apr 6 2010Apr 9 2010

Publication series

Name2010 IEEE Symposium on New Frontiers in Dynamic Spectrum, DySPAN 2010

Other

Other2010 IEEE Symposium on New Frontiers in Dynamic Spectrum, DySPAN 2010
CountrySingapore
CitySingapore
Period4/6/104/9/10

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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