Call admission control for qos provisioning in multimedia wireless atm networks

Doo Scop Eom, Masashi Suganq, Masayuki Murata, Hideo Miyahara

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


In this paper, \ve investigate a call admission control (CAC) problem in a multimedia wireless ATM network that supports various multimedia applications based on micro/pico cellular architectures. Due to reduced wireless cell size (compared to conventional cellular networks), forced termination of calls in progress becomes a more serious problem in the wireless ATM network. Another problem specific to the multimedia wireless network is how to avoid an excessive delay of non-realtime applications under the presence of various realtime applications with priority over non-realtime applications. We consider two service classes; CBR for realtime applications and UBR for nonrealtime applications, and then propose a new CAC scheme that addresses above two problems while minimizing a blocking probability of newly arriving calls of CBR. Through the analytical methods, we derive the blocking probabilities and forced termination probabilities of CBR calls and the average packet delay of UBR connections. We also present a method that decides the optimal CAC threshold values in our CAC scheme.

Original languageEnglish
Pages (from-to)14-23
Number of pages10
JournalIEICE Transactions on Communications
Issue number1
Publication statusPublished - 1999
Externally publishedYes


  • Blocking probability
  • Cac (call admission control)
  • Handoff
  • Qos (quality of service)
  • Wireless atm

ASJC Scopus subject areas

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


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