Journal of Korean Institute of Industrial Engineers (대한산업공학회지)

Korean Institute of Industrial Engineers (대한산업공학회)
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Study on the Call Admission Control in the Broadband OFDMA Wireless Communication Systems

광대역 OFDMA 무선통신시스템의 호 접속제어에 관한 연구

  • Paik, Chun-Hyun (Department of Industrial and Management Engineering, Dongeui University)
  • 백천현 (동의대학교 산업경영공학과)
  • Received : 2008.07.17
  • Accepted : 2008.09.26
  • Published : 2008.12.31
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Abstract

This paper addresses a call admission control(CAC) scheme giving handoff calls a priority over new calls for OFDMA wireless communication systems. The characteristics of OFDMA system and a variety of user QoS (Quality of Service) requirements are incorporated into the proposed CAC scheme which consists of several optimization modules for the system resource(subcarriers and power) allocations. The mathematical models and its solution methods for the embedded resource allocation problems are proposed. Some extensive computational experiments are conducted to illustrate the superiority of our CAC.

Keywords

Acknowledgement

Supported by : 한국학술진흥재단

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