Channel Assignment Based Call Admission Control in a Multi-Chip Rate CDMA Cellular System(Special Issue on Mobile Multimedia Communications)

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概要

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• Emerging requirement for higher rate data services and better spectrum efficiency is the main driving force identified for the third generation mobile radio systems. Moreover, it needs the capability of providing predictable qualities of service (QoS) for different applications. To maintain different QoS requirements, mechanisms such as call admission control (CAC) and load control, etc. are needed to achieve the required services. In this paper, we propose a CAC algorithm based on channel assignment in a multi-chip rate direct-sequence CDMA (MCR-DS-CDMA) cellular system supporting multi-rate services. Five multi-MBC (mapping of information bit rates to chip rates) channel assignment schemes and corresponding channel selection rules are proposed herein. Computer simulation, where multimedia applications are considered, is used to evaluate the system performance (e.g., blocking probability and system capacity) with different channel assignment schemes. Numerical results demonstrate that scheme 5 (i.e., Minimum-influence scheme) performs better because it provides the highest system capacity and least blocking probability.

• 社団法人電子情報通信学会の論文
• 2002-10-01

著者

• WU Jung-Shyr

  Graduate Institute of Communication Engineering, National Central University

• Wu Jung-shyr

  Graduate Institute Of Commnication Engineering National Central University

• Hwang Bor-jiunn

  Department Of Computer Science And Information Engineering Van Nung Institute Of Technology

• SUNG Wen-Feng

  Department of Electrical Engineering, National Central University

• Sung Wen-feng

  Department Of Electrical Engineering National Central University

関連論文

• Performance Analysis of Distributed Control Architecture Model in Carrier Class VoIP Network(Special Issue on New Technologies in the Internet and their Applications)
• Channel Assignment Based Call Admission Control in a Multi-Chip Rate CDMA Cellular System(Special Issue on Mobile Multimedia Communications)
• The Performance Modeling Application of SIP-T Signaling System Based on Two-Class Priority Queueing Process in Carrier Class VoIP Network
• The Performance Modeling Application of SIP-T Signaling System Based on Two-Class Priority Queueing Process in Carrier Class VoIP Network(New Technologies in the Internet and their Applications)
• Performance Modeling and Analysis of SIP-T Signaling System in Carrier Class Packet Telephony Network for Next Generation Networks

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