A Jamming-Resistant Channel Hopping Scheme for Cognitive Radio Networks

Guey Yun Chang, Szu Yung Wang, Yuen Xin Liu

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


Jamming attack is one of the major threats in cognitive radio networks (CRNs). In this paper, we propose an anti-jamming channel hopping algorithm, Tri-CH, for CRNs. Tri-CH adopts random jump pattern (i.e., hops randomly over channels) to achieve high security level and reception mode stay pattern (i.e., stays at a channel for receiving packets only) to guarantee bounded time to rendezvous. Tri-CH operates without pre-shared secrets and role pre-assignment. Hence, Tri-CH is applicable to large networks, where nodes join and leave the network frequently, and may play the sender role and the receiver role, simultaneously. According to the theoretical analysis, Tri-CH outperforms in terms of maximum time to rendezvous under jamming attacks.

Original languageEnglish
Article number7990596
Pages (from-to)6712-6725
Number of pages14
JournalIEEE Transactions on Wireless Communications
Issue number10
StatePublished - Oct 2017


  • Cognitive radio
  • channel hopping
  • jamming attack


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