New video streaming technology for mobile phones

Jul 10, 2013

VTT Technical Research Centre of Finland has developed a new architecture for better-quality video streaming on mobile phones and across wireless networks. The new architecture is based on utilising information gathered and combined from the video application, the network and the mobile phone. For example, information concerning quality, price and availability can be combined and utilised directly to better the service. This means better-quality videos and easier access for consumers, and users may even benefit from the new technology financially. From the perspective of operators and service providers, the new technology allows them to improve the quality of video streams without having to invest in new network capacity, giving them a cost-effective way to boost customer satisfaction.

The volume of data transmitted across wireless and continues to grow at a rapid rate. Videos already account for most of this , and their share is expected to grow even bigger in the near future. The described in the dissertation of VTT's Senior Scientist Tiia Ojanperä is designed to optimise video streaming according to capacity in order to achieve constant quality and efficient network resource usage.

The methods developed make use of versatile information obtained from the video application, the network and the mobile phone. The gathered information concerns, for example, the quality of service requirements of the and the availability of the networks. Collecting, transmitting and utilising the information particularly enhance video streaming services in wireless networks. This process is called cross-layer optimisation, and it is especially useful for improving the quality of video streaming across wireless networks. Video streaming refers to making videos available for users to begin viewing even before the entire video file has been downloaded from the internet. Video streaming is used in applications such as online and the provision of television programmes and films online.

Better quality even in congested networks

Thanks to the new architecture, video stream transfer speeds can be adjusted more efficiently to network resources available. This means that the quality of the video stream will not become unacceptable even when the transfer speed of a wireless connection suddenly changes due to congestion.

The new architecture is also ideal for multi-access environments. In multi-access environments, video stream transfer speeds and therefore quality can be maximised by means of optimised handovers and concurrent utilisation of multiple access networks. If the current network connection is insufficient for video streaming, the task of receiving the stream can be handed over to another network or multiple networks used to receive the stream concurrently.

Financial benefits for both consumers and service providers

The new architecture gives users and operators more control over the network connectivity used for accessing the video services. For example, if a user is forced to stream a video using a network connection that is expensive to use or has limited capacity, the user can choose to only receive an adapted, poorer-quality version of the stream via that connection. If a more affordable network becomes available during streaming, the architecture automatically switches to that network to give the user access to a high-quality version of the stream.

From the perspective of operators and service providers, ensuring the satisfaction of video streaming customers is now more important than ever, as struggle under ever-increasing data traffic volumes. The new architecture allows operators and service providers to boost without having to invest in new network capacity. The new architecture also gives opportunities to develop new video streaming applications.

Explore further: New approach to mobile video fuses streaming and downloading to dodge delays, improve quality

add to favorites email to friend print save as pdf

Related Stories

Judder-free videos on the smartphone

Feb 03, 2012

Overloaded cellular networks can get annoying – especially when you want to watch a video on your smartphone. An optimised Radio Resource Manager will soon be able to help network operators accommodate heavy network ...

SK Telecom introduces world's fist LTE-A network

Jun 26, 2013

South Korea's SK Telecom announced Wednesday the launch of a new generation mobile network that offers speeds twice that of its existing long term evolution (LTE) network and 10 times that of 3G services.

Streaming video over temporary networks

Jan 29, 2013

Self-configuring data networks may provide crucial help to emergency and rescue operations in hard-to-access areas. Norwegian researchers are developing software that makes it easier to transmit vital video ...

N. American Internet traffic doubles, report says

Nov 08, 2012

The amount of data sent online in North America has more than doubled over the past year, with Netflix shows accounting for a big chunk of Internet traffic, a report found Wednesday.

Recommended for you

Internet TV case: US justices skeptical, concerned

6 hours ago

Grappling with fast-changing technology, U.S. Supreme Court justices debated Tuesday whether they can protect the copyrights of TV broadcasters to the shows they send out without strangling innovations in ...

Hundreds in Mexico protest telecommunications law

7 hours ago

Hundreds of students and activists marched in Mexico's capital Tuesday to protest a telecommunications law being debated by the Senate that they say will allow the government to arbitrarily censor Internet content.

User comments : 0

More news stories

Jacket works like a mobile phone

A fire is raging in a large building and the fire leader is sending a message to all firefighters at the scene. But they don't need a mobile phone – they simply check their jacket sleeves and read the message ...

Is nuclear power the only way to avoid geoengineering?

"I think one can argue that if we were to follow a strong nuclear energy pathway—as well as doing everything else that we can—then we can solve the climate problem without doing geoengineering." So says Tom Wigley, one ...

Male-biased tweeting

Today women take an active part in public life. Without a doubt, they also converse with other women. In fact, they even talk to each other about other things besides men. As banal as it sounds, this is far ...

High-calorie and low-nutrient foods in kids' TV

Fruits and vegetables are often displayed in the popular Swedish children's TV show Bolibompa, but there are also plenty of high-sugar foods. A new study from the University of Gothenburg explores how food is portrayed in ...