Media Resource Adaptation for Multimedia Services and Streaming Media for Mobile Telephones

Media Resource Adaptation for Multimedia Services and Streaming Media for Mobile Telephones

Tibor Szkaliczki (Hungarian Academy of Sciences, Hungary)
DOI: 10.4018/978-1-61350-144-3.ch007
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Nowadays an intensive diversification can be experienced among the devices that can display multimedia content to the user. Typically, clients are unable to receive large audio-visual data volumes in original quality because of resource limitations and deficiency of terminal capabilities. The aim of media resource adaptation is to provide multimedia items for users in a format that is most appropriate with respect to the current terminal capabilities, network characteristics, server capacities and user preferences. The execution time of adaptation is crucial in order to shorten startup delay. The chapter is intended to give a survey on media resource adaptation. Our aim is to introduce the related standards and specifications, show an adaptation framework. We put special emphasis on the algorithmic aspects of adaptation decision taking and present some optimization methods to efficiently select adaptation parameters.
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Recently the mobile telephones have increase their computing power and displays. But they are still limited in the visualization of media information (Chittaro, 2006; Loizides and Buchanan, 2010). On the other hand, mobile networks have increased their bandwidth but still they cannot transport efficiently high definition and 3D multimedia information (Wortham, 2009; Väätäjä and Männistö, 2010). Moreover, mobile devices are not able to receive always and everywhere multimedia content in high quality. This makes that, the access to online multimedia content, especially streaming videos, from the own mobile device provokes disappoint. Still, in many cases the requested video can be displayed only on a high performance Personal Computer (PC) and efficiently communicated through a high bandwidth communication network. Sometimes the multimedia stream is jerky because it overloads the display device and/or the network. Sometimes the service providers are too cautious and the quality of the media stream is poorer compared to the quality accepted by the device and the network.

Nowadays, there is a high diversity (Chukwu, 2009; Higgins et al., 2010) of: a) devices that can display multimedia content (the capabilities of devices are different in terms of graphical resolution, storage capacity, processor speed, audio quality), b) supported media formats, c) networks and d) content providers. Indeed, mobile device can be used as a source of multimedia to other devices. This makes very challenging the delivery of multimedia contents to any current mobile device. To solve this media objects or media resources (content) must be adapted. The goal of content adaptation (Chang and Vetro, 2005; Hu, 2010) is to present it in a format that is appropriate for the current mobile devices capabilities, network characteristics, server capacities, user rights and user preferences. The replacement of the content itself is not considered content adaptation. A simplest way to do resource adaptation is to store media objects of different qualities. An advanced way is to store only one instance of the high-quality content which can be adapted to the different constraints of the mobile devices at delivery time. Media resource adaptation can be applied to standalone information (e.g., multimedia streaming) or to structured content (e.g., HiperText Markup Language (HTML) objects).

Figure 1 gives an overview of resource adaptation components and concepts (that will be explained in detail in next sections). Adaptation needs information both on the original content (resource metadata) and the destination consuming the media (usage environment). The media content consists of the multimedia resources and the related metadata containing their properties. Usage Environment Description (UED) provides information on the entities as follows:

Figure 1.

Overview of adaptation framework

  • The terminal capabilities.

  • The network characteristics.

  • The special requirements and preferences of the person requesting the content.

  • The characteristics of the natural environment.

The Adaptation Decision Taking Engines (ADTE) controls the adaptation process; its task is to determine the parameters of the adapted multimedia resources. Good selection of the adaptation parameters may highly increase the satisfaction of the users. Adaptation Engine (AE) executes the transformation in accordance with the adaptation parameters coming from the output of the adaptation decision. ADTE should be aware of the capabilities of AE (which parameters can be adapted, what is the range of their possible values, what kinds of transformations are possible, what is the performance of the AE). A general adaptation framework is interoperable with different usage environments and in principle, it can process media resources with arbitrary feature values.

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Editorial Advisory Board
Table of Contents
Alvaro Suarez Sarmiento, Elsa Macias Lopez
Alvaro Suarez Sarmiento, Elsa Macias Lopez
Chapter 1
Ngozi V. Uti, Richard Fox
In recent years, mobile phones have become the de facto system of communication across the planet. Mobile phones have helped increase economic... Sample PDF
The Challenges of Compressing and Streaming Real Time Video Originating from Mobile Devices
Chapter 2
Martin Fleury, Salah S. Al-Majeed, Laith Al-Jobouri, Mohammed Ghanbari
Mobile WiMAX is suitable for video-on-demand as well as broadcast TV services. Delivery of video streams over an IP packet-switched network, which... Sample PDF
Multimedia Services for Mobile WiMAX: Data-Partitioned Single Connection and Multi-Connection Streaming
Chapter 3
Chun-Ting Chou
The multimedia content is migrating promptly from standard quality to high-definition and even 3D. As a result, existing wireless technologies can... Sample PDF
High-Speed Cable Replacement for Multimedia Streaming in Wireless Personal and Local Area Networks
Chapter 4
Ping-Cheng Yeh, Hung-Yun Hsieh, Zhung-Han Wu, Yen-Chi Lee, Chun-Cheng Chiang, Antonio Ou
Due to the time-varying nature of wireless channels and the Internet backbone traffic, it is a challenging task to maintain the quality of wireless... Sample PDF
Codec Adaptation for Wireless Multimedia Streaming
Chapter 5
Martin Zimmermann, Gilbert Seilheimer
The media streaming server technology have been developed in the recent past using free software and open source approaches. But commercial... Sample PDF
Reviewing HTTP and RTSP Work in Two Actual Commercial Media Delivery Platforms for Multimedia Services and Mobile Devices
Chapter 6
Luis Angel Galindo, Joaquín Salvachúa
Traditionally, Internet has offered multimedia services independently of the services offered by companies associated to Telco (companies that... Sample PDF
Multimedia Services Offer Mixing Telco and Internet Assets
Chapter 7
Tibor Szkaliczki
Nowadays an intensive diversification can be experienced among the devices that can display multimedia content to the user. Typically, clients are... Sample PDF
Media Resource Adaptation for Multimedia Services and Streaming Media for Mobile Telephones
Chapter 8
Gianluca Paravati, Fabrizio Lamberti, Andrea Sanna, Cesare Celozzi
Recent improvements in technology have opened new, intriguing, and challenging scenarios for the latest generation of mobile devices, and users are... Sample PDF
High-Performance Solutions for Adaptive and Customizable Streaming of Interactive Content to Mobile Devices
Chapter 9
Adam Dou, Vana Kalogeraki, Dimitrios Gunopulos, Taneli Mielikainen, Ville H. Tuulos
Most of today’s smart-phones are geared towards a single user experience, whether it is reading a book, watching a movie, playing a game or... Sample PDF
Using MapReduce Framework for Mobile Applications
Chapter 10
Ulrike Lucke
Applications and infrastructures of the future will have to be intelligent to some extent, which means that they should automatically adapt to the... Sample PDF
Context-Aware Multimedia Services for Mobile Lecture Streaming
Chapter 11
Rosinei Oliveira, Ádamo L. Santana, João C. W. A. Costa, Carlos R. L. Frances, Elisangela Aguiar, Paulo Bezerra, Allan Costa, Eduardo Cerqueira, Antônio J. G. Abelém
It is expected that multimedia applications will be the most abundant application in the Internet and thousands of new wireless and mobile users... Sample PDF
Recent Advances and Challenges in Wireless QoE-Aware Multimedia Streaming Systems
Chapter 12
Juan C. Guerri, Pau Arce, Patricia Acelas, Wilder E. Castellanos, Francisco Fraile
Video services are much demanded nowadays but bandwidth and delay requirements of this kind of services are very restrictive. Offering real-time... Sample PDF
Routing and Coding Enhancements to Improve QoS of Video Transmissions in Future Ad Hoc Networks
Chapter 13
Nadia N. Qadri, Martin Fleury, Mohammed Ghanbari
This Chapter proposes the concept of resilient multi-source streaming using a peer-to-peer overlay network over an urban vehicular ad-hoc network.... Sample PDF
Resilient P2P Video Streaming over an Urban VANET
Chapter 14
Elsa Macías, Alvaro Suarez, Francisco Espino
Video streaming technique is at present the key factor of some multimedia services. The efficient implementation of multimedia services in mobile... Sample PDF
Multi-Platform Video Streaming Implementation on Mobile Terminals
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