Mobility management for SIP sessions in a heterogeneous network environment

Romijn, Willem A.; Plas, Dirk-Jaap; Bijwaard, Dennis; Meeuwissen, Erik; Ooijen, Gijs van

doi:10.1002/bltj.20053

Cited by 8 publications

(5 citation statements)

References 7 publications

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“…Progress has been made in the Freeband 4Gplus project [40] and IST-Daidalos project [3,4]. A network-initiated method for splitting multimedia sessions is described in [2].…”

Section: Mobility and Sharing Of Multimedia Sessionsmentioning

confidence: 99%

See 1 more Smart Citation

Challenges in Efficient Realtime Mobile Sharing

Bijwaard¹,

Eertink

Havinga

2013

Internet of Things and Inter-Cooperative Computational Technologies for Collective Intelligence

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Future applications are envisioned to be adaptive to various changes in network, environment and situation. These so-called pervasive applications will be composed from both locally and globally available multimedia resources such as audio and video, web services and context sources. The rapidly increasing pervasiveness in todays networks, i.e. the number of mobile devices, the amount of data they generate and share (near) realtime increases rapidly. In fact this forms the basis for research efforts on the Internet of Things. The increased pervasiveness leads to numerous efficiency and scalability challenges. This chapter will detail the state of the art and binding concepts for efficient realtime sharing and mobility of multimedia and context. Additionally, it lists the associated challenges and their progress in a number of research projects.In the past decade we have seen a number of technology boosts. Multimedia like audio and video moved from analogue to digital, enabling free audio/video calls over the Internet. Multiple network types have been integrated into mobile devices and bandwidth is gradually increasing. Sensors became wireless and form wireless sensor networks for environmental monitoring, and multiple sensors are added to mobile devices enabling different interaction modalities and situation awareness, The number of mobile devices and their capabilities are gradually increasing, and server clouds have been created that offer remote processing and storage.

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“…Progress has been made in the Freeband 4Gplus project [40] and IST-Daidalos project [3,4]. A network-initiated method for splitting multimedia sessions is described in [2].…”

Section: Mobility and Sharing Of Multimedia Sessionsmentioning

confidence: 99%

“…Regarding progress, mobility schemes for maintaining sessions were analysed in the Freeband 4Gplus project [40] and IST-Daidalos project [3,4]. The IST-Daidalos project also worked on virtual identities across network and applications, with anonymity support.…”

Section: Service Platformsmentioning

confidence: 99%

Challenges in Efficient Realtime Mobile Sharing

Bijwaard¹,

Eertink

Havinga

2013

Internet of Things and Inter-Cooperative Computational Technologies for Collective Intelligence

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“…• Changing a stream from unicast to Internet Protocol (IP) multicast, • Changing the transmission end point on a multihomed device (e.g., switching a stream from a UMTS interface to a WLAN interface on the device) [15], and • Changing the end point of transmission (e.g., from a mobile device to a wall display) [22].…”

Section: Sip Signaling Backgroundmentioning

confidence: 99%

Efficiency of personalized content distribution

Gaast¹,

Bijwaard²

2008

Bell Labs Tech. J.

Self Cite

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Services like telecommunication, messaging, radio/television broadcast, and Web browsing are increasingly using the same Internet Protocol (IP)-based transport technology. Converged IP next-generation networks (NGNs) will enable easier blending and personalization of those services. For popular content, technologies like caching, broadcasting, and multicasting aim to increase network efficiency but also introduce extra complexity and bandwidth overhead. Additionally, the sheer amount of available content and the increasing flexibility for the end user to request content at any time from any place make it increasingly difficult to determine content popularity in order to predict the efficiency of using content distribution techniques. This paper describes a model for wireless networks to use network characteristics and a prediction of the popularity distribution to calculate the optimal combination of unicast and broadcast techniques when offering a number of media channels to the end user. Furthermore, an approach is described to optimize personalized content distribution efficiency in converged IP NGN networks utilizing efficiency calculations with this model. © 2008 Alcatel-Lucent.commonly distributed content, i.e., television (TV) channels, with additional content aimed specifically at a particular user or user group. Such content may include overlay elements such as text, graphics, pictures, animations, or video clips, and additional or enhanced audio-and/or video-specific segments.Content distribution techniques mainly improve efficiency for "popular" content. However, personalization and an almost infinite choice of content make it difficult to determine content popularity at a specific moment in time. This paper describes a content distribution efficiency model for wireless networks and proposes a dynamic mechanism to provide efficient

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“…In this sense, [18] presents an analytical study of a vertical handover between UMTS and WLAN networks managed by SIP. An experimental evaluation of a SIP-based vertical handover in a scenario composed of LAN, WLAN, and GPRS connectivity is offered in [19], although only the delay component corresponding to the SIP signaling is considered.…”

Section: E Related Workmentioning

confidence: 99%

VoIP Performance in SIP-Based Vertical Handovers Between WLAN and GPRS/UMTS Networks

Cardenete-Suriol¹,

Mangues‐Bafalluy²,

Portolés-Comeras³

et al. 2007

2007 IEEE International Conference on Communications

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This paper experimentally analyzes the handover performance of VoIP sessions in a wireless overlay of 802.11 WLANs and GPRS/UMTS networks when mobility is handled at the application layer by SIP. It also assesses the impact of handovers on the VoIP call quality perceived by the user by means of the extended E-model. The study reveals that good performance values are achieved when handing over from GPRS/UMTS to WLAN. Additionally, acceptable quality is obtained for handovers from WLAN towards UMTS. On the other hand, unacceptable values are achieved when moving towards GPRS. The main reason is the delay experienced by SIP messages when traversing the cellular network.

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Mobility management for SIP sessions in a heterogeneous network environment

Cited by 8 publications

References 7 publications

Challenges in Efficient Realtime Mobile Sharing

Challenges in Efficient Realtime Mobile Sharing

Efficiency of personalized content distribution

VoIP Performance in SIP-Based Vertical Handovers Between WLAN and GPRS/UMTS Networks

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