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題名 Quantitative quality estimation of cloud-based streaming services
作者 郁方
Yu, Fang
Wan, Yat-wah
蔡瑞煌
Tsaih, Rua-huan
貢獻者 資管系
關鍵詞 Simulation; Quantitative analysis; Queueing theory; Online streaming services; Cloud computing; Service quality
日期 2018-07
上傳時間 24-Jul-2018 17:29:59 (UTC+8)
摘要 Cloud-based streaming services, such as real-time streaming video and gaming services, have emerged as popular online Internet applications in recent years. Providing systematic quality estimation before (or after) launching these services has raised a significant challenge due to dynamic runtime status of servers, clients and the network environment. This paper proposes a queueing model for the cloud-based streaming service in which packet level dynamics are taken into consideration so that customer-affected performance can be estimated by a hybrid simulation approach. The simulation approach is particularly useful for cloud service providers to evaluate the service quality before launching the service. The analytical model has two parts: (1) the virtual-machine-level service queueing model along with the stationary closed-form expressions on the average number of customers, the average waiting time, and the average number of employed virtual machines (VMs), and (2) the microscopic model and the simulation procedure on the customer side that capture the lag time of streaming packets. The simulation procedure is derived based on the analytical model. The simulation results show how the service quality is affected by server and customer performances, providing the insight for cloud resource provision and client parameter settings.
關聯 Computer Communications,Volume 125, Pages 24-37
資料類型 article
DOI https://doi.org/10.1016/j.comcom.2018.04.017
dc.contributor 資管系
dc.creator (作者) 郁方zh_TW
dc.creator (作者) Yu, Fangen_US
dc.creator (作者) Wan, Yat-wahen_US
dc.creator (作者) 蔡瑞煌zh_TW
dc.creator (作者) Tsaih, Rua-huanen_US
dc.date (日期) 2018-07
dc.date.accessioned 24-Jul-2018 17:29:59 (UTC+8)-
dc.date.available 24-Jul-2018 17:29:59 (UTC+8)-
dc.date.issued (上傳時間) 24-Jul-2018 17:29:59 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/118880-
dc.description.abstract (摘要) Cloud-based streaming services, such as real-time streaming video and gaming services, have emerged as popular online Internet applications in recent years. Providing systematic quality estimation before (or after) launching these services has raised a significant challenge due to dynamic runtime status of servers, clients and the network environment. This paper proposes a queueing model for the cloud-based streaming service in which packet level dynamics are taken into consideration so that customer-affected performance can be estimated by a hybrid simulation approach. The simulation approach is particularly useful for cloud service providers to evaluate the service quality before launching the service. The analytical model has two parts: (1) the virtual-machine-level service queueing model along with the stationary closed-form expressions on the average number of customers, the average waiting time, and the average number of employed virtual machines (VMs), and (2) the microscopic model and the simulation procedure on the customer side that capture the lag time of streaming packets. The simulation procedure is derived based on the analytical model. The simulation results show how the service quality is affected by server and customer performances, providing the insight for cloud resource provision and client parameter settings.en_US
dc.format.extent 926285 bytes-
dc.format.mimetype application/pdf-
dc.relation (關聯) Computer Communications,Volume 125, Pages 24-37
dc.subject (關鍵詞) Simulation; Quantitative analysis; Queueing theory; Online streaming services; Cloud computing; Service qualityen_US
dc.title (題名) Quantitative quality estimation of cloud-based streaming servicesen_US
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.1016/j.comcom.2018.04.017
dc.doi.uri (DOI) https://doi.org/10.1016/j.comcom.2018.04.017