Analysis of the Effect of QoS on Video Conferencing QoE

Rao, N Bhaskar; Maleki, Alireza; Chen, F.; Chen, W.; Zhang, C.; Kaur, Navneet; Haque, Anwar

doi:10.1109/iwcmc.2019.8766591

Cited by 20 publications

(10 citation statements)

References 10 publications

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“…In [19], they found that providing consistent lower objective video quality is better than switching between higher and lower qualities since participants start to perceive impairments. This is in line with the findings presented by Rao et al in [13], where users highly valued a steady bandwidth.…”

Section: Literature Review and Motivationsupporting

confidence: 93%

“…They showed an exponential relationship between PVQ and packet loss and between PVQ and packet reordering, while a logarithmic relationship was established between PVQ and video bit rate. Similar to [12], Rao et al in [13] introduced jitter, packet loss, uplink throttling, and latency into their distortion scenarios and used DMOS (Differential Mean Opinion Score) to evaluate incoming video signal from the end-user perspective, thus quantifying the QoS-QoE relationship. They evaluated 144 conferencing sessions under predefined network scenarios and found that the bandwidth is directly proportional to the perceived quality of the video.…”

Section: Literature Review and Motivationmentioning

confidence: 99%

“…This survey differs from others because our user perception study did not focus on a single telemeeting session, nor did we attempt to evaluate, for example, the quality of a particular incoming video stream in different network scenarios (as in [11][12][13]). Due to the pandemic and associated locked-down measures, we could not conduct face-to-face tests and interviews and collect users' opinions about specific session quality.…”

Section: Concept Of the Surveymentioning

confidence: 99%

See 2 more Smart Citations

Modeling the Level of User Frustration for the Impaired Telemeeting Service Using User Frustration Susceptibility Index (UFSI)

Mrvelj

Matulin

2021

Electronics

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Modern users are accustomed to always-accessible networks ready to serve all of their communication, entertainment, information, and other needs, at the touch of their devices. Spoiled with choices provided on the competitive markets, the risk of customer churn makes network and service providers sensitive to user Quality of Experience (QoE). Services that enable people to work and industries to function in these pandemic times, such as the telemeeting service, are becoming ever more critical, not just for the end-users but also for the providers. Nevertheless, the heterogeneity of end-users network environments and the uniqueness of the service (bidirectional video and audio transmissions and interactivity between the meeting peers) imposes specific QoE requirements. Hence, this paper focuses on understanding how different service quality degradations affect user perception and frustration with such impaired service. The impact of eight quality degradations was analyzed. Based on the conducted user study, we used the multiple regression analysis and developed three models capable of predicting user Level of Frustration (LoF) for the specific degradations that we have analyzed. The models work with the User Frustration Susceptibility Index (UFSI), which categorizes users into groups based on their tendency to become frustrated with the impaired service.

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Section: Literature Review and Motivationsupporting

confidence: 93%

Section: Literature Review and Motivationmentioning

confidence: 99%

Section: Concept Of the Surveymentioning

confidence: 99%

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Modeling the Level of User Frustration for the Impaired Telemeeting Service Using User Frustration Susceptibility Index (UFSI)

Mrvelj

Matulin

2021

Electronics

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“…Sedangkan minimal bandwidth yang dibutuhkan agar WebRTC dapat bekerja dengan baik sebesar 128 Kbps. Penelitian terhadap hubungan antara Quality of Service (QoS) dan Quality of Experience (QoE) pada video conference telah dilakukan sebelumnya [11] . Quality of Service (QoS) merupakan parameter pengukuran kualitas layanan jaringan komputer untuk aplikasi tertentu, dalam hal ini adalah video conference.…”

Section: Pendahuluanunclassified

Peningkatan Kualitas Video Conference Menggunakan Packet Priority

Prakasa¹

2022

SMATIKA

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Video Conference merupakan salah satu teknologi yang banyak digunakan untuk pembelajaran pada masa pandemi Covid-19. UIN Maulana Malik Ibrahim Malang sebagai salah satu perguruan tinggi yang menerapkan pembelajaran daring (dalam jaringan) memiliki platform video conference sendiri yang terhubung dengan sistem pembelajaran elektronik (e-learning). Namun tidak semua mahasiswa dapat mengakses koneksi internet yang lancar. Hal ini menyebabkan penurunan kualitas video conference sehingga mengganggu proses pembelajaran. Penelitian ini berupaya menemukan cara untuk memperbaiki kualitas video conference pada koneksi internet yang terbatas. Teknik yang digunakan untuk memperbaiki kualitas video conference adalah dengan memprioritaskan paket data video conference dibandingkan paket data yang lain pada antrian router. Dengan demikian akan dapat meminimalisir delay & jitter pada video conference. Hasil dari penelitian menunjukkan bahwa dengan memanipulasi antrian paket data pada jaringan komputer, dapat meningkatkan kualitas video conference pada bandwidth yang terbatas dari parameter delay dan jitter antara 20% - 30%. Sedangkan untuk packet loss menunjukkan 0% namun retransmission packet cukup banyak pada skenario tanpa prioritas paket terutama pada bandwidth < 3Mbps. Hasil dari penelitian ini menunjukkan bahwa manipulasi prioritas paket data berdampak pada berkurangnya lag / informasi yang hilang ketika proses video conference berlangsung terutama pada bandwidth < 3Mbps.

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“…QoS needs to be analyzed not only from a metric perspective but also from a customer satisfaction perspective. Quantitative metrics must be correlated with qualitative metrics from the customers [5]. QoE in video streaming is a task that can be improved in both wired and wireless networks.…”

Section: Introductionmentioning

confidence: 99%

Architecture and Protocol to Optimize Videoconference in Wireless Networks

Jiménez

García-Navas

Lloret

et al. 2020

Wireless Communications and Mobile Computing

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In the past years, videoconferencing (VC) has become an essential means of communications. VC allows people to communicate face to face regardless of their location, and it can be used for different purposes such as business meetings, medical assistance, commercial meetings, and military operations. There are a lot of factors in real-time video transmission that can affect to the quality of service (QoS) and the quality of experience (QoE). The application that is used (Adobe Connect, Cisco Webex, and Skype), the internet connection, or the network used for the communication can affect to the QoE. Users want communication to be as good as possible in terms of QoE. In this paper, we propose an architecture for videoconferencing that provides better quality of experience than other existing applications such as Adobe Connect, Cisco Webex, and Skype. We will test how these three applications work in terms of bandwidth, packets per second, and delay using WiFi and 3G/4G connections. Finally, these applications are compared to our prototype in the same scenarios as they were tested, and also in an SDN, in order to improve the advantages of the prototype.

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Analysis of the Effect of QoS on Video Conferencing QoE

Cited by 20 publications

References 10 publications

Modeling the Level of User Frustration for the Impaired Telemeeting Service Using User Frustration Susceptibility Index (UFSI)

Modeling the Level of User Frustration for the Impaired Telemeeting Service Using User Frustration Susceptibility Index (UFSI)

Peningkatan Kualitas Video Conference Menggunakan Packet Priority

Architecture and Protocol to Optimize Videoconference in Wireless Networks

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