RTP analysis for the video transmission process on WhatsApp and Skype against signal strength variations in 802.11 network environments

Karya, Oki Teguh; Saesaria, S. S.; Budiyanto, Setiyo

doi:10.1088/1757-899x/453/1/012062

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…Research [1] shows that today, many users communicate using audio or video services over the Internet, communication can be one-way, two-way or even multidimensional or meeting and conference. Applications such as Microsoft Skype and WhatsApp are such popular apps, with Research [7] shows that Software-Defined Networking (SDN) based on OpenFlow is a new technology for the Internet with logical centralized control, which brings for network operation convenient and flexible control over pre-existing basic networks.…”

Section: Related Workmentioning

confidence: 99%

QoS Assessment for Video and Audio Data based on a Testbed for Multimedia Wireless ad Hoc Networks

Anh

Giang

2022

J. Phys.: Conf. Ser.

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Currently, with the fast modernization of wireless networking technologies as well as the very complex needs of the network users, multimedia data takes for a large proportion in the types of network services, this type of data requires Quality of Service (QoS) differs from traditional data, by ensuring the listening and viewing elements of the user. In this paper, we analyse the effect of video and voice data on QoS of wireless network services based on the establishment of an experimental evaluation (emulation) system or testbed, thereby providing empirical analysis on the effect of multimedia data on mobile wireless QoS.

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Section: Related Workmentioning

confidence: 99%

QoS Assessment for Video and Audio Data based on a Testbed for Multimedia Wireless ad Hoc Networks

Anh

Giang

2022

J. Phys.: Conf. Ser.

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“…Azfar et al [27] study ten Android VoIP applications, mainly from the security point of view. Karya et al [28] compare RTP traffic in Whatsapp and Skype, under mobile networks. Wuttidittachotti et al [29] provide a study on the perceived QoE of three well-known VoIP applications, using Perceptual Evaluation of Speech Quality (PESQ).…”

Section: Related Workmentioning

confidence: 99%

A comparative study of RTC applications

Nistico

Markudova

Trevisan

et al. 2020

2020 IEEE International Symposium on Multimedia (ISM)

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Real-Time Communication (RTC) applications have become ubiquitous and are nowadays fundamental for people to communicate with friends and relatives, as well as for enterprises to allow remote working and save travel costs. Countless competing platforms differ in the ease of use, features they implement, supported user equipment and targeted audience (consumer of business). However, there is no standard protocol or interoperability mechanism. This picture complicates the traffic management, making it hard to isolate RTC traffic for prioritization or obstruction. Moreover, undocumented operation could result in the traffic being blocked at firewalls or middleboxes.In this paper, we analyze 13 popular RTC applications, from widespread consumer apps, like Skype and Whatsapp, to business platforms dedicated to enterprises -Microsoft Teams and Webex Teams. We collect packet traces under different conditions and illustrate similarities and differences in their use of the network. We find that most applications employ the wellknown RTP protocol, but we observe a few cases of different (and even undocumented) approaches. The majority of applications allow peer-to-peer communication during calls with only two participants. Six of them send redundant data for Forward Error Correction or encode the user video at different bitrates. In addition, we notice that many of them are easy to identify by looking at the destination servers or the domain names resolved via DNS. The packet traces we collected, along with the metadata we extract, are made available to the community.

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“…For example, Skype and WhatsApp are mobile application platforms providing video calls or video conferences for their users. These services use RTP for video streaming (KARYA et al, 2018). Hulu (HULU, 2019) is an online video service providing on-demand shows, movies, documentaries, and more.…”

Section: Historical Overview Of Video Streamingmentioning

confidence: 99%

Capa

Afzal

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Bandwidth constraint is a real challenge for achieving and sustaining high quality mobile video streaming services. Diverse multipath transmission techniques are being investigated as possible solutions, since recent developments have enabled mobile devices users to receive video data simultaneously over multiple interfaces (e.g., LTE and WiFi). While some multipath protocols have been recently standardized for this purpose (e.g., MPTCP, SCTP), being network layer protocols they cannot properly handle challenging transmission scenarios subject to packet losses and congestion, such as lossy wireless channels. It is important to note that, usually, users just want to have easy access to high quality video content without being necessarily aware of the multipath delivery channels.In this thesis, we adopt the MPEG Media Transport (MMT) protocol to propose an improvement for multipath wireless video streaming solutions. MMT is an application layer protocol with inherent hybrid media delivery properties. We propose a novel Content-Aware and Path-Aware (CAPA) scheduling strategy for MMT, using full cooperation between network metrics and video content features. Our strategy aims to select the best channel for transmitting each video packet and provides better models to adaptively cope with unstable communication channel conditions and to improve the final user quality of experience (QoE).For the experimental evaluation, we used ns-3 DCE to simulate different realistic multipath network scenarios, which include channel error models and background traffic. We evaluate CAPA performance over heterogeneous wireless networks under congested network and wireless lossy network conditions, which are common network situations with big adverse effect on video quality. Our approach yields significant video quality improvement in both scenarios compared to Path-Aware strategy (PA) and a simple scheduling strategy for the traditional multipath MMT (ES). For congested network scenario, CAPA could increase PSNR, respectively, by up to 4.25 dB (12.97%), and 7.22 dB (20.58%) compared to PA and ES. It could also improve SSIM, respectively, by up to 0.033 (3.78%), and 0.102 (12.54%) compared to PA and ES. For wireless lossy network scenario, CAPA could increase PSNR, respectively, by up to 6.84 dB (20.30%), and 9.43 dB (30.32%) compared to PA and ES. Our proposed strategy could also reach improvement of SSIM, respectively, by up to 0.100 (12.72%), and 0.113 (14.23%) compared to PA and ES.We also evaluate videos with different bit rates in our environment under congested network condition to check the behaviour of our proposed strategy, and how it handles streaming of videos with different bit rates to provide sufficient perceived video quality. Furthermore, we have a basic validation of fairness for CAPA to confirm fair access to the available resources in all paths.

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RTP analysis for the video transmission process on WhatsApp and Skype against signal strength variations in 802.11 network environments

Cited by 3 publications

References 6 publications

QoS Assessment for Video and Audio Data based on a Testbed for Multimedia Wireless ad Hoc Networks

QoS Assessment for Video and Audio Data based on a Testbed for Multimedia Wireless ad Hoc Networks

A comparative study of RTC applications

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