Flow-admission control based on equality of heterogeneous traffic (two-type flow model)

Sumiko Miyata, Katsunori Yamaoka

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Multimedia applications such as video and audio have recently come into much wider use. Because this heterogeneous traffic consumes most of the network's resources, call admission control (CAC) is required to maintain high-quality services. User satisfaction depends on CAC's success in accommodating application flows. Conventional CACs do not take into consideration user satisfaction because their main purpose is to improve the utilization of resources. Moreover, if we assume a service where an ISP provides a "flat-based charging," each user may receive same user satisfaction as a result of users being accommodated in a network, even if each has a different bandwidth. Therefore, we propose a novel CAC to maximize total user satisfaction based on a new philosophy where heterog eneous traffic is treated equally in networks. Theoretical analysis is used to derive optimal thresholds for various traffic configurations with a full search system. We also carried out theoretical numerical analysis to demonstrate the effectiveness of our new CAC. Moreover, we propose a sub-optimal threshold configuration obtained by using an approximation formula to develop practical CAC from these observations. We tested and confirmed that performance could be improved by using sub-optimal parameters. Copyright

Original languageEnglish
Pages (from-to)3564-3576
Number of pages13
JournalIEICE Transactions on Communications
Issue number12
Publication statusPublished - 2010 Dec
Externally publishedYes


  • Admission control
  • Equality
  • QoS
  • Reservation control
  • Total call-blocking rate

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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