Admission control in cognitive radio networks with finite queue and user impatience

Jian Wang, Aiping Huang, Wei Wang, Tony Q.S. Quek

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


For session-level quality-of-service (QoS) provisioning in cognitive radio networks (CRNs), it is essential to adopt an effective admission control scheme with appropriate parameters. In this paper, a framework for admission control and session-level performance analysis is proposed by taking into account several factors such as channel reservation for handoff secondary users (SUs), buffers for handoff SUs and newly arriving SUs, limited buffer size, and queued SUs' leaving due to impatience. The whole system is modeled by a multi-dimensional continuous-time Markov chain, where important session-level QoS performance metrics, i.e., dropping probability and blocking probability are derived.

Original languageEnglish
Article number6401136
Pages (from-to)175-178
Number of pages4
JournalIEEE Wireless Communications Letters
Issue number2
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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