05MM1100, Research on 4G Mobile Communications Technology,
Hwang Seung Ku
Abstract
서비스품질(QoS) 보장은 지속적인 망 자원을 필요로 하는 멀티미디어 응용을 지원하는데 있어 필수적인 사항이다. 무선 환경에서도 멀티미디어의 응용들이 많이 수용될 것으로 전망됨에 따라 무선 환경에서의 QoS 지원에 대한 중요성이 증가되고 있으나, QoS 지원방안이 개별적인 망 단위로 연구되는 경우가 많다. 따라서, 이종 망들이 혼재하는 환경에서, End-to-End QoS 를 보장하기 위한 QoS 연동에 대한 연구가 필요하다. 본 논문에서는 IEEE 802.11 WLAN 과 UMTS 간의 QoS 연동을 지원하기 위해 상이한 QoS 클래스 및 파라미터들 간의 맵핑 방안을 제시하고 시뮬레이션을 통해 End-to-End QoS 가 지원됨을 입증한다.
KSP Keywords
End to End(E2E), End-to-End QoS, IEEE 802.11 WLAN
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