Optimal admission control and state space reduction in two-class preemptive loss systems

Bara Kim, Sung Seok Ko

Research output: Contribution to journalArticle

1 Citation (Scopus)


We consider a multiserver system with two classes of customers with preemption, which is a widely used system in the analysis of cognitive radio networks. It is known that the optimal admission control for this system is of threshold type. We express the expected total discounted profit using the total number of customers, thus reducing the stochastic optimization problem with a two-dimensional state space to a problem with a one-dimensional birth-and-death structure. An efficient algorithm is proposed for the calculation of the expected total discounted profit.

Original languageEnglish
Pages (from-to)917-921
Number of pages5
JournalETRI Journal
Issue number5
Publication statusPublished - 2015 Oct 1



  • Cognitive radio networks
  • Markov decision process
  • Optimal admission policy
  • Preemptive loss system

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science(all)
  • Electronic, Optical and Magnetic Materials

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