Evaluating Video Streaming Over GPRS/UMTS Networks: A Practical Case

Dı́az, A. Navas; Merino, Pedro; Panizo, Laura; Recio, A.M.

doi:10.1109/vetecs.2007.139

Cited by 8 publications

(6 citation statements)

References 2 publications

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“…With the emergence of 3G networks, congestion control needs to be reworked because the varying network capacity affects the video quality [10]. This problem has been the focus for 3GPP in the recent years (e.g.…”

Section: Related Workmentioning

confidence: 99%

Predictive buffering for streaming video in 3G networks

Singh

Ott

Curcio

2012

2012 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM)

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Abstract-This paper presents a multimedia streaming service in a mobile (3G) environment that, in addition to in-band congestion signals such as packet losses and delay variations, receives congestion cues from a Network Coverage Map Service (NCMS) to make rate-control decisions. The streaming client routinely queries the NCMS to assess the network conditions at future locations along its expected path. The streaming client may ask the streaming server for short-term transmission bursts to increase pre-buffering when it is approaching areas with bad network performance to maintain media quality. If needed, the client may also switch to a different encoding rate (rate-switching) depending on the severity of expected congestion. These notifications are scheduled as late as possible, so that any changes in network conditions and/or changes in user's movements can be taken into account (late scheduling). Using this type of geo-predictive media streaming service we show that the streaming client can provide pause-less playback and better quality of experience to the user.

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Section: Related Workmentioning

confidence: 99%

Predictive buffering for streaming video in 3G networks

Singh

Ott

Curcio

2012

2012 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM)

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“…This tool has been extensively tested [1] [2] in the performance analysis of video streaming service over cellular networks. Experimental results can be found in the references.…”

Section: Coverage Mapsmentioning

confidence: 99%

SymPa

Zayas

Gómez

2009

Proceedings of the 5th ACM Symposium on QoS and Security for Wireless and Mobile Networks

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SymPA mobile application enables traffic analysis and monitoring of mobile devices in real operating conditions. With this tool it is possible to sniff all of the IP traffic that other applications running on a mobile phone receive from data connections. This makes SymPA particularly suitable for studying the end-to-end performance of IP based protocols and for mobile peer-to-peer scenarios. In addition, the application provides useful information related to radio parameters and the state of the mobile device, which can be used to detect the cause of transmission problems. Due to the complexity of mobile networks it is crucial to provide developers with these kind of tools, specific for mobile devices.

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“…The performance evaluation of multimedia applications is vital for detecting the erratic behaviour of mobile networks and applications. In previous works [6] [7] we have analyzed the performance of video streaming traffic using cellular networks in real scenarios. The acquired understanding of mobility issues from the application level point of view allows us to design a middleware with appropriate functionalities from the application developers point of view.…”

Section: Lessons Learned From Previous Workmentioning

confidence: 99%

“…In previous works [6] [7] we have used this tool for analyzing the performance of multimedia services over cellular networks. The knowledge acquired at this stage has allowed us to propose a new middleware centred on solving problems related with real mobility issues on cellular networks.…”

Section: Introductionmentioning

confidence: 99%

Towards a lightweight middleware for mobile multimedia communication awareness

Dı́az¹,

Merino²

2008

Proceedings of the 4th International Mobile Multimedia Communications Conference

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The quality of service requirements for multimedia applications are well-known and have been widely discussed in the literature over the years. Though, the deployment of new radio access technologies and multimedia services over the new heterogeneous networks have given rise to new and challenging issues and, in this new context, improved performance of such applications is essential for the success of the next generation of mobile networks. These new issues are being tackled from several points of view. In this paper we present a new approach for mobile device centres, based on providing the application level with a seamless communication adaptation to network issues. Due to the changeable nature of wireless network we have focussed on using information from lower levels to make the application level more adaptable. In other words, we propose to deploy a lightweight middleware based on cross-layer protocols for accessing lower layers parameters in order to provide adaptive techniques to the application level.

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Evaluating Video Streaming Over GPRS/UMTS Networks: A Practical Case

Cited by 8 publications

References 2 publications

Predictive buffering for streaming video in 3G networks

Predictive buffering for streaming video in 3G networks

SymPa

Towards a lightweight middleware for mobile multimedia communication awareness

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