• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 20 Issue 1
Feb.  2007
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Article Contents
FANG Xuming, ZHU Longjie, ZHANG Dandan. Packet-Based Call Admission Control Scheme in Broadband CDMA Networks[J]. Journal of Southwest Jiaotong University, 2007, 20(1): 1-7.
Citation: FANG Xuming, ZHU Longjie, ZHANG Dandan. Packet-Based Call Admission Control Scheme in Broadband CDMA Networks[J]. Journal of Southwest Jiaotong University, 2007, 20(1): 1-7.

Packet-Based Call Admission Control Scheme in Broadband CDMA Networks

  • Received Date: 30 May 2006
  • Publish Date: 25 Feb 2007
  • A cooperative CAC(call admission control) mechanism for user connection access control and user packet access control,and an improved priority-based CAC scheme were proposed,in which modeling for three major types of traffic,i.e.voice,video and data,were elaborated for application in broadband CDMA(code division multiple access) networks.The scheme takes the packet in wireless packet networks as the minimum resource management unit,incorporates the residual capacity and the traffic characteristics,and sets different access criteria for different types of traffic.The connections and packets with higher real-time demands are given higher accessing priority,while guaranteeing reasonable quality of service for the lower real-time demand traffic.Simulation results show that,with the proposed CAC scheme,the traffic blocking probability and average access delay are efficiently reduced,and the resource utilization efficiency is increased.

     

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