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학술대회 Handover Impact on E2E Delay of Multimedia Service in High-Speed Railway System
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오상철, 윤병식, 김동준, 성동일
International Conference on Information and Communication Technology Convergence (ICTC) 2020, pp.1709-1713
20IH3400, 자동운전을 지원하는 ETCS L3급 고속철도용 열차제어시스템 핵심기술 및 궤도회로 기능 대체기술 개발, 윤병식
This paper analyzed the handover impact on E2E delay of video conference multimedia service in high-speed railway system. Stable end-to-end (E2E) delay is essential to stable video conference multimedia service. Frequent handover by short inter-cell site distance (ISD) in high-speed railway system makes it harder. Therefore, we investigated the performance association between average E2E delay of video conference multimedia service and handover A3 offset in train speed at 150 km/h, 250 km/h and 350 km/h. OPNET network simulator provided by Riverbed Technology, Inc. was used for a tool to simulate the behavior and performance of the system.The results showed us that handover A3 offset mainly affected average E2E delay of video conference multimedia service, so that we knew that it was possible to decrease the average E2E delay by controlling handover A3 offset. Moreover, the results informed that there were unstable and stable interval to average E2E delay regarding handover A3 offset values, thus we can take stable video conference multimedia service by controlling them.
KSP 제안 키워드
E2E Delay, End to End(E2E), High-speed railway system, Multimedia Service, Network simulator(NS), Video Conference, cell site, inter-cell, train speed