Download e-book for kindle: Principles, Systems and Applications of IP by Wilfried Jouve, Nicolas Palix (auth.), Henning Schulzrinne,

By Wilfried Jouve, Nicolas Palix (auth.), Henning Schulzrinne, Radu State, Saverio Niccolini (eds.)

ISBN-10: 354089053X

ISBN-13: 9783540890539

ISBN-10: 3540890548

ISBN-13: 9783540890546

This booklet constitutes the completely refereed court cases of the tenth foreign Workshop on ideas, platforms and functions of IP Telecommunications, held in Heidelberg, Germany, in July 2008.

The sixteen complete papers provided have been conscientiously reviewed and chosen from a complete of fifty six submissions. themes coated contain fresh advances within the domain names of convergent networks, VoIP defense, and multimedia provider environments for subsequent iteration networks.

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Read Online or Download Principles, Systems and Applications of IP Telecommunications. Services and Security for Next Generation Networks: Second International Conference, IPTComm 2008, Heidelberg, Germany, July 1-2, 2008. Revised Selected Papers PDF

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Extra info for Principles, Systems and Applications of IP Telecommunications. Services and Security for Next Generation Networks: Second International Conference, IPTComm 2008, Heidelberg, Germany, July 1-2, 2008. Revised Selected Papers

Example text

This paper also presents verifications of the safety and correctness properties of the proposed solution. Recommendations on the SIP standard and implementations to facilitate 3PCC are also discussed. 1 The Challenges Presented by SIP Summary of SIP Operation For this paper, we only consider the baseline SIP standard as defined by [13] and any necessary supporting standards, most notably the offer-answer exchange [11]. All other extensions to SIP are excluded and left for future work. As implied by its name, SIP is primarily designed as a signaling protocol for establishing media sessions.

When the content proves to be popular, an MBMS session is established to transmit it. In contrast, the update of content with low subscriptions is notified to the clients using unicast bearers. This notification may be delayed to times of low network congestion, as podcast content has soft time constraints. Figure 11 shows the internal process arrangement of this component. The Scheduler is composed of Operator Policies and Subscribtion List data entities, plus a Distribution Decision process. The Operator Policies entity stores all the network provider preferences related to efficient content distribution.

The Download service pushes discrete binary data files over an MBMS bearer. Due to the nature of the MBMS radio channel, the goal of this method is file transmission reliability. To do so, data transmission is protected using FEC coding and an off-band file repair service. The download delivery method uses the FLUTE protocol [17] to transfer content. In 3GPP Release 6, UTRAN MBMS channels can operate with different data rates ranging from 64kbps up to 256kps. The MBMS service could comprise several channels, for instance using WCDMA MBMS technology.

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Principles, Systems and Applications of IP Telecommunications. Services and Security for Next Generation Networks: Second International Conference, IPTComm 2008, Heidelberg, Germany, July 1-2, 2008. Revised Selected Papers by Wilfried Jouve, Nicolas Palix (auth.), Henning Schulzrinne, Radu State, Saverio Niccolini (eds.)


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