IEMEK Journal of Embedded Systems and Applications (대한임베디드공학회논문지)

Institute of Embedded Engineering of Korea (대한임베디드공학회)
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Achieving Agility in Blind Spectrum Rendezvous in Cognitive Radio Networks

인지무선네트워크에서 블라인드 스펙트럼 랑데부 지연의 단축

  • Received : 2020.04.25
  • Accepted : 2020.07.30
  • Published : 2020.08.31
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Abstract

In cognitive radio networks, secondary transmitters should cease its transmission immediately on detecting of primary transmission in the spectrum they are accessing. Then they should exploit another idle spectrums and handoff to the newly found idle spectrums, which is called spectrum rendezvous. With regards to spectrum rendezvous, most of related work presume the existence of dedicated common control channel used by secondary users for exchanging the information of idle spectrums. However, this presumption is not feasible in real world cognitive radio scenario. Therefore we address a blind spectrum rendezvous scheme with no need of separate control channel. Furthermore we consider maintaining one or more extra spectrums (channels) to expedite the spectrum rendezvous. Our scheme lets secondary users maintain extra spectrums by exchanging the spectrum information periodically during normal communications. The one of the extra spectrums are regarded as a candidate spectrum that the users can handoff to on detecting the primary transmission. We evaluate that our blind scheme can help to reduce the rendezvous delay in a real world cognitive radio environments with USRPs.

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References

  1. Z. Gu, Q.S. Hua, W. Dai, "Fully Distributed Algorithms for Blind Rendezvous in Cognitive Radio Networks," Proc. of ACM MobiHoc, pp. 155-164, 2014.
  2. J. Li, H. Zhao, J. Wei, D. Ma, L. Zhou, “Sender-jump Receiver-wait: A Simple Blind Rendezvous Algorithm for Distributed Cognitive Radio Networks,” IEEE Transactions on Mobile Computing, Vol. 17, No. 1, pp. 183-196, 2018. https://doi.org/10.1109/TMC.2017.2703166
  3. Y. Song, J. Xie, “Prospect: A Proactive Spectrum Handoff Framework for Cognitive Radio ad Hoc Networks Without Common Control Channel,” IEEE Transactions on Mobile Computing, Vol. 11, No. 7, pp. 1127-1139, 2012. https://doi.org/10.1109/TMC.2011.140
  4. K. Wang, L. Chen, K. Bian, W. Wang, P. Zhou, "On Cooperative Channel Rendezvous in Cognitive Radio Networks," IEEE Access, Vol. 7, pp. 57500-57515, 2019. https://doi.org/10.1109/ACCESS.2019.2914148
  5. Y. Dai, J. Wu, C. Xin, “Efficient Virtual Backbone Construction Without a Common Control Channel in Cognitive Radio Networks,” IEEE Transactions on Parallel and Distributed Systems, Vol. 25, No. 12, pp. 3156-3166, 2014. https://doi.org/10.1109/TPDS.2013.2297118
  6. N. Thesis, R. Thomas, L. DaSilva, “Rendezvous for Cognitive Radios,” IEEE Transactions on Mobile Computing, Vol. 10, No. 2, pp. 216-227, 2011. https://doi.org/10.1109/TMC.2010.60
  7. H. Kim, K. Shin, "Fast Discovery of Spectrum Opportunities in Cognitive Radio Networks," Proc. IEEE Symposium on New Frontiers in DYSPAN, pp. 1-12, 2008.
  8. T. Schmid, "GNU Radio 802.15.4 En-and Decoding," NESL Technical Report, 2016.