Journal of KIISE:Information Networking (한국정보과학회논문지:정보통신)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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Performance Analysis of Call Admission Control Utilizing WLAN to Mitigate Congestion of Cellular Networks

WLAN을 이용한 셀룰러망 혼잡도 완화를 위한 호수락제어 성능 분석

  • Published : 2008.10.15
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Abstract

In this paper, we propose a resource effective call admission control(CAC) in integrated WLAN and cellular network. The proposed CAC mitigates the congestion of cellular network by handing over non-realtime traffic to WLAN. We analyze the proposed CAC in numerical and simulation method. The simulation results show that the proposed CAC achieves better performance than normal CAC. Especially, the proposed CAC can sustain desired QoS more robustly against high incoming non-realtime traffic load than againt realtime traffic load.

본 논문에서는, WLAN과 셀룰러망의 중첩된 환경에서 망자원을 효율적으로 하는 호수락제어 방식을 제안한다. 제안된 방식은 비실시간 트래픽을 WLAN으로 분산 이동시킴으로써 셀룰러망의 혼잡도를 완화시킨다. 제안된 호수락제어 방식에 대해서 수치 분석과 시뮬레이션 분석을 한다. 시뮬레이션 결과로써, 제안된 호수락제어 방식이 기존의 방식보다 좋은 성능을 보여준다. 특히, 실시간 트래픽 보다 비실시간 트래픽의 높은 입력 트래픽율에 대해서 좀 더 안정적인 QoS를 유지할 수 있다.

Keywords

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