نتایج جستجو برای: quality of experience qoe

تعداد نتایج: 21244342  

2016
Ying Bao Weimin Lei Wei Zhang Yuzhuo Zhan

At present, to realize or improve the quality of experience (QoE) is a major goal for network media transmission service, and QoE evaluation is the basis for adjusting the transmission control mechanism. Therefore, a kind of QoE collaborative evaluation method based on fuzzy clustering heuristic algorithm is proposed in this paper, which is concentrated on service score calculation at the serve...

2017
M. Hammad Mazhar Zubair Shafiq

The widespread deployment of end-to-end encryption protocols such as HTTPS and QUIC has reduced the visibility for operators into traffic on their networks. Network operators need the visibility to monitor and mitigate Quality of Experience (QoE) impairments in popular applications such as video streaming. To address this problem, we propose a machine learning based approach to monitor QoE metr...

2013
Carlos Quadros Eduardo Cerqueira Augusto Neto Andre Riker Roger Immich Marilia Curado

The convergence of emerging real-time multimedia services, the increasing coverage of wireless networks and the ever-growing popularity of mobile devices, are leading to an era of user-centric multimedia wireless services. In this scenario, heterogeneous communications will co-exist and ensure that the end-user is always best connected. However, the Quality of Experience (QoE) support for emerg...

Journal: :EURASIP J. Wireless Comm. and Networking 2014
Gerardo Gómez Lorenzo Hortiguela Quiliano Pérez Javier Lorca Raquel García M. Carmen Aguayo-Torres

In this paper, we present an Android application which is able to evaluate and analyze the perceived Quality of Experience (QoE) for YouTube service in wireless terminals. To achieve this goal, the application carries out measurements of objective Quality of Service (QoS) parameters, which are then mapped onto subjective QoE (in terms of Mean Opinion Score, MOS) by means of a utility function. ...

2013
Yingxiao Xu Prasad Calyam David Welling Saravanan Mohan Alex Berryman Rajiv Ramnath

There are several motivations (e.g., mobility, cost, security) that are fostering a trend to transition users’ traditional desktops to thin-client based virtual desktop clouds (VDCs). Such a trend has led to a rising importance for human-centric performance modeling and assessment within user communities in industry and academia that are increasingly adopting desktop virtualization. In this pap...

Journal: :EAI Endorsed Trans. Future Intellig. Educat. Env. 2015
Yiqi Bai Danpu Liu Zhilong Zhang

Hypertext transfer protocol (HTTP) video streaming is a growing and increasingly important data traffic type in wireless and mobile networks. Experiments have shown that the quality of experience (QoE) of this service strongly depends on the number of playback interruptions. This paper proposes a QoE-oriented packet scheduling algorithm to reduce the pauses during video playback in a wireless e...

2011
Hai Anh Tran Abdelhamid Mellouk

Recently, wealthy network services such as Internet protocol television (IPTV) and Voice over IP (VoIP) are expected to become more pervasive over the Next Generation Network (NGN). In order to serve this purpose, the quality of these services should be evaluated subjectively by users. This is referred to as the quality of experience (QoE). The most important tendency of actual network services...

2014
Lei Chen Ping Wang Fuqiang Liu Nguyen Ngoc Van

In Multiple-input Multiple-output (MIMO) system, the scheduling schemes for guaranteeing quality of service (QoS) set fixed delay boundaries for data packets of special service. However, the utility function of the quality of user experience (QoE) is usually a continuous function mapping service latency to Mean Opinion Score (MOS). Based on a QoS provisioning scheme, we propose a QoE-aware sche...

2014
Sebastian Arndt Markus Wenzel Jan-Niklas Antons Friedemann Köster Sebastian Möller Gabriel Curio

For service providers, it is important to know the perceived quality of a transmitted speech signal, as this can be an indicator for choosing one operator over the other. To evaluate the perceived quality, several methods have been introduced in the area of Quality of Experience (QoE), such as subjective, instrumental and physiological methods. In the current study, we expose the test participa...

2017
Qian Wang Yilong Yin Xiushan Nie

The rapid increasing demands of multi-media applications have busted the improvement of video transmission. By the increase of multimedia transmission, quality of experience (QoE) has become the hot topic of the wireless networks’ research. This paper proposes a QoE-aware resource allocation algorithm in MIMO-OFDM Networks. The power allocation estimation is formulated to maximize according to ...

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