Optimal channel allocation for cognitive radios

J. M. Chung, C. H. Kim, J. H. Park, J. Shin, D. Kim

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


A channel allocation mechanism for cognitive radios (CRs) is proposed to enable maximum throughput and minimum forced termination probability for CR users (CUs) that are not capable of spectrum handover (SH). SH is an optimal collision-avoidance scheme used by CUs to evacuate from time-slots that will be used by primary users (PUs) based on time-slot assignment (TA) information obtained in advance. The proposed scheme has extensive applicability for CR-networks where SH is not possible owing to PU TA information not being obtainable in advance, which is very common. For CR-networks without SH capability, the proposed scheme enables remarkable throughput performance, equivalent to the level of when SH is used.

Original languageEnglish
Pages (from-to)802-803
Number of pages2
JournalElectronics Letters
Issue number11
Publication statusPublished - 2010 May 27

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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