2017
DOI: 10.1002/cpe.4202
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A QoC‐based model for performance and QoE trade‐off in distributed systems

Abstract: Summary This paper proposes a quality of context (QoC)–based model to enhance trade‐off between system performance and users quality of experience (QoE) in distributed systems. The QoE considers the users subjective perceptions of quality on technology services and depends on context attributes related to the users expectations. In addition, context information can be used to improve performance in context‐aware systems. Therefore, the QoC‐based model proposed in this paper aims to establish performance and Qo… Show more

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Cited by 1 publication
(3 citation statements)
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“…40 Moreover, we modified the open-source application to record the activity of the objective metrics, and the recorded information is sent to the main server over HTTP protocol.…”
Section: Proposed Model Implementationmentioning
confidence: 99%
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“…40 Moreover, we modified the open-source application to record the activity of the objective metrics, and the recorded information is sent to the main server over HTTP protocol.…”
Section: Proposed Model Implementationmentioning
confidence: 99%
“…CPU usage and battery power consumption for the VMs and the entire virtualized system are measured by using the Linux monitoring tools. In the VMs, 39,40 the number of cycles executed per second is analyzed when a user watches videos of different segment lengths. The average CPU usage is influenced by some factors such as high encoded video quality, quality video switching, CPU environment, and the behavior of the video playback application and availability of clients' throughput.…”
Section: Resource Usage Parametersmentioning
confidence: 99%
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