A network-based architecture for seamless mobility services

Kalmanek, Charles; Murray, John F.; Rice, C.W.; Gessel, B.; Kabre, R.; Moskal, A.

doi:10.1109/mcom.2006.1668427

Cited by 12 publications

(10 citation statements)

References 5 publications

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“…The scheme complies to the IP Multimedia Subsystem (IMS), a standardized overlay architecture for session control, authentication, authorization and accountability in all-IP networks [8]. Another related proposal is that presented in [16], that only supports vertical handoffs from 3G networks to a Wi-Fi.…”

Section: Ii5 Solutions At the Session Layermentioning

confidence: 99%

The “Always Best Packet Switching” architecture for SIP-based mobile multimedia services

Ghini

Ferretti

Panzieri

2011

Journal of Systems and Software

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-This paper presents a distributed architecture for the provision of seamless and responsive mobile multimedia services. This architecture allows its user applications to use concurrently all the wireless network interface cards (NICs) a mobile terminal is equipped with. In particular, as mobile multimedia services are usually implemented using the UDP protocol, our architecture enables the transmission of each UDP datagram through the "most suitable" (e.g., most responsive, least loaded) NIC among those available at the time a datagram is transmitted. We term this operating mode of our architecture Always Best Packet Switching (ABPS). ABPS enables the use of policies for load balancing and recovery purposes. In essence, the architecture we propose consists of the following two principal components: i) a fixed proxy server, which acts as a relay for the mobile node and enables communications from/to this node regardless of possible firewalls and NAT systems, and ii) a proxy client running in the mobile node responsible for maintaining a multi-path tunnel, constructed out of all the node's NICs, with the above mentioned fixed proxy server. We show how the architecture supports multimedia applications based on the SIP and RTP/RTCP protocols, and avoids the typical delays introduced by the two way message/response handshake of the SIP signaling protocol. Experimental results originated from the implementation of a VoIP application on top of the architecture we propose show the effectiveness of our approach.

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Section: Ii5 Solutions At the Session Layermentioning

confidence: 99%

The “Always Best Packet Switching” architecture for SIP-based mobile multimedia services

Ghini

Ferretti

Panzieri

2011

Journal of Systems and Software

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“…Nonetheless, these solutions usually do not consider service continuity as their primary goal and do not include advanced forms of handoff-triggered streaming adaptation. [5,6,15,16].…”

Section: Related Workmentioning

confidence: 99%

“…However, it only focuses on handoff prediction and does not consider session adaptation. Intelligent Network-Seamless Mobility Access (IN-SMA) proposes a new AS, called Mobility Application Server, for IMS-based 3G-to-WiFi vertical handoff management; differently from IHMAS, it focuses more on flow transfer than on content tailoring; in addition, its proposal for flow continuity is widely preliminary [15]. The solution in the literature that is more focused on dynamic session adaptation is [6].…”

Section: Datamentioning

confidence: 99%

An IMS Vertical Handoff Solution to Dynamically Adapt Mobile Multimedia Services

Bellavista¹,

Corradi

2008

2008 IEEE Symposium on Computers and Communications

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Recent advances in wireless client devices and multimedia communications have motivated relevant standardization efforts, such as the IP Multimedia Subsystem (IMS) to support session control, mobility, and interoperability in all-IP next generation networks. Notwithstanding the central relevance of IMS for novel mobile multimedia services, IMS-based solutions still exhibit limited support for service continuity during handoffs, by omitting advanced techniques to reduce/eliminate handoff delays and quality degradations, especially during vertical handoffs. We propose an original solution for service continuity and dynamic multimedia content tailoring based on the primary design guideline of exploiting terminal-based decentralized handoff predictions to proactively activate application-level management operations (flow quality downscaling). The proposal is fully compliant with standard IMS and exploits infrastructure media gateways to execute content tailoring actions, without requiring heavy client-side adaptation operations. The reported experimental results point out that our solution can avoid streaming playout interruptions and significantly increase user-perceived service quality, without negative effects on handoff delay.

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“…and seamless mobility where consumers are watching IPTV in one viewing station and simultaneously switching to another device. In a previous paper, Kalmanek et al studied an IMS based architecture to support seamless voice mobility [5]. What we describe next is an IMS based architecture that supports IPTV.…”

Section: ) Sip Session Mobility-ietf Rfc [4]mentioning

confidence: 99%

“…The IPTV profile information that needs to be shared between different IMS services is stored in the IPTV XDMS database [5]. This database is accessed using XCAP [6], which works over HTTP.…”

Section: A Iptv User Profilesmentioning

confidence: 99%

IPTV session mobility

Mas

Berggren

Jana

et al. 2008

2008 Third International Conference on Communications and Networking in China

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This article describes a novel architecture for delivering personalized IPTV experiences to the end users. The framework leverages the IP Multimedia Subsystem (IMS) to quickly enable new innovative, multi-media services. We describe the session flows for a single IPTV session switch between multiple set top boxes (STBs) and between a STB and a PC/mobile device SIP user agent. We also demonstrate how supplementary services like caller ID and advanced telephony features can also be migrated across multiple devices.

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A network-based architecture for seamless mobility services

Cited by 12 publications

References 5 publications

The “Always Best Packet Switching” architecture for SIP-based mobile multimedia services

The “Always Best Packet Switching” architecture for SIP-based mobile multimedia services

An IMS Vertical Handoff Solution to Dynamically Adapt Mobile Multimedia Services

IPTV session mobility

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