Enhanced channel access estimation based adaptive control of distributed cognitive radio networks

Jong Hong Park, Jong Moon Chung

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Spectrum sharing in centrally controlled cognitive radio (CR) networks has been widely studied, however, research on channel access for distributively controlled individual cognitive users has not been fully characterized. This paper conducts an analysis of random channel access of cognitive users controlled in a distributed manner in a CR network. Based on the proposed estimation method, each cognitive user can estimate the current channel condition by using its own Markov-chain model and can compute its own blocking probability, collision probability, and forced termination probability. Using the proposed scheme, CR with distributed control (CR-DC), CR devices can make self-controlled decisions based on the status estimations to adaptively control its system parameters to communicate better.

Original languageEnglish
Pages (from-to)1333-1343
Number of pages11
JournalKSII Transactions on Internet and Information Systems
Issue number3
Publication statusPublished - 2016 Mar 31

Bibliographical note

Funding Information:
A preliminary version of this paper was presented at APIC-IST 2015 and was selected as an outstanding paper. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 2013R1A1A2012082), the ICT R&D program of MSIP/IITP [B0101-15-1276, Access Network Control Techniques for Various IoT Services] supervised by the Institute for Information & communications Technology Promotion (IITP), and the ICT R&D program of MSIP/IITP. [R0126-15-1009, Development of Smart Mediator for Mashup Service and Information Sharing among ICBMS Platform].

Publisher Copyright:
© 2016 KSII.

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Networks and Communications


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