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학술지 QoE Enhancement Schemes for Video in Converged OFDMA Wireless Networks and EPONs
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저자
Divya Chitimalla, Massimo Tornatore, 이상수, 이한협, 박수명, 정환석, Biswanath Mukherjee
발행일
201803
출처
IEEE/OSA Journal of Optical Communications and Networking, v.10 no.3, pp.229-239
ISSN
1943-0620
출판사
IEEE, OSA
DOI
https://dx.doi.org/10.1364/JOCN.10.000229
협약과제
17HH3200, SDN 기반 유무선 액세스 통합 광네트워킹 기술, 정환석
초록
Bandwidth requirements of both wireless and wired clients in access networks continue to increase rapidly, primarily due to the growth of video traffic. Application awareness can be utilized in access networks to optimize quality of experience (QoE) of end clients. In this study, we utilize information at the client-side application (e.g., video resolution) to achieve superior resource allocation that improves user QoE. We emphasize optimizing QoE of the system rather than quality of service (QoS), as user satisfaction directly relies on QoE and optimizing QoS does not necessarily optimize QoE, as shown in this study. We propose application-aware resource-allocation schemes on an Ethernet passive optical network (EPON), which supports wireless (utilizing orthogonal frequency division multiple access) and wired clients running video-conference applications. Numerical results show that the application-aware resource-allocation schemes improve QoE for video-conference applications for wired and wireless clients.
KSP 제안 키워드
Application awareness, Ethernet Passive Optical Network, Frequency division multiple access(FDMA), Numerical results, Orthogonal Frequency Division Multiple Access(OFDMA), User Satisfaction, Video Conference, Video resolution, Wired and wireless, Wireless network, access network