Transparent network-assisted flow mobility for multimedia applications in IMS environments

Vidal, Iván; Soto, Ignacio; Calderón, María; García-Reinoso, Jaime; Sandonis, Victor

doi:10.1109/mcom.2013.6553684

Cited by 4 publications

(5 citation statements)

References 10 publications

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“…The Proactive vertical handover algorithm using IMS compliant Handoff Management application server was discussed in [13]. Transparent network assisted architecture overview is discussed in [14]. The proposed Modified Hybrid coupled UMTS-WiMAX-WLAN architecture includes the advantages of hybrid coupled IMS based architecture together enhances the QoS by authenticating WiMAX, WLAN users in 3GPP IMS and including media resource controller function for real time application like conferencing.…”

Section: Related Workmentioning

confidence: 99%

Modified hybrid coupled architecture for UMTS-WiMAX-WLAN overlay networks using IMS

Bharathi

Nithyanandan

2014

2014 International Conference on Communication and Signal Processing

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4G communications expects to integrate different radio access networks together to meet wide expectation from users and to support mobility. The different radio networks such as Universal Mobile Telecommunication Systems (UMTS), Worldwide interoperability for Microwave Access (WiMAX), Wireless Local Area Network (WLAN), etc. are collocated in same geographical area to provide different services are called overlay networks. Integration of these networks increases efficient utilization of overall network bandwidth, QoS of user and supports mobility. Integration of different networks has the challenges like terminal mobility, session establishment, session management, session negotiation and charging etc. The IP Multimedia Subsystem (IMS) offers solution for above mentioned issues. This paper proposes modified hybrid coupled architecture for UMTS-WIMAX-WLAN overlaid network using IMS to support QoS and mobility. Performance of the proposed modified hybrid coupled architecture for two real time services (voice and video) are compared with loose, tight and hybrid coupled architectures. Packet delay variation, packet end-to end delay for video service, jitter, packet end-to end delay, Mean opinion score (MoS) value for voice service and number of hops and network convergence activity are considered as parameters for performance comparison. The proposed modified hybrid coupled architecture provides better QoS compared with loose, tight and hybrid coupled architecture.

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Section: Related Workmentioning

confidence: 99%

Modified hybrid coupled architecture for UMTS-WiMAX-WLAN overlay networks using IMS

Bharathi

Nithyanandan

2014

2014 International Conference on Communication and Signal Processing

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“…This approach requires MIH support in IMS and the mobility context information is restricted to low layers state. For a related functionality in LTE networks, the 3GPP has proposed a new network entity called the Access Network Discovery and Selection Function (ANDSF) presented in [24] [25] and applied to network assisted flow mobility in IMS environments in [26]. The ANDSF sends to terminals information about available access networks and policies on how to choose the access network.…”

Section: Related Workmentioning

confidence: 99%

“…In order to transfer the session to the smartphone, the MM initiates a new SIP session with it. The SDP payload of the INVITE message (26) includes the bindings generated by the MTM (see step 8 in Fig. 4).…”

Section: Push Session Mobilitymentioning

confidence: 99%

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CATMISS: context-aware transparent mobility for IMS services

Sandonis

Soto

Calderón

et al. 2014

Multimed Tools Appl

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The IP Multimedia Subsystem (IMS) is considered as the common platform for providing a unified session control on top of various access network technologies for multimedia applications. At the same time, we are witnessing how wireless technologies become an integral part of our daily life, due to an increasing number of mobile multi-interface devices and the proliferation of wireless access networks. In this context the availability of transparent mobility management mechanisms is a key element to enhance user's quality of experience.On the other hand, context-awareness is a vital ingredient to allow mobile devices to make appropriate and timely mobility decisions. The benefits of using diverse context information (e.g., about the user, the service and the network) to manage mobility are twofold. First, the richer information is available, the more likely an intelligent decision can be taken. Second, it allows the network to assist the terminal to take mobility decisions, even up to the point of automatically initiating a mobility procedure if according to the context and user preferences this improves the user's quality of experience.In this paper we propose CATMISS, a solution to support context-aware mobility in IMS services. The solution is based on SIP signalling and makes mobility transparent for communication peers of mobile terminals. Two types of mobility are supported: a terminal changing of access network and a multimedia session being transferred from one terminal to another. The paper also describes the implementation of the solution and its deployment in an experimental platform. Experiments in this platform, with IPTV and videoconference services, are used to validate the proposal.

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“…This leads to suboptimal data paths that can result in a significant increase of data path delay and the corresponding loss of performance. In [28], we explore the poten tial of TRIM to support flow mobility, where handover decisions are governed by policy rules defined by operators, but this proposal still uses suboptimal paths for media communications.…”

Section: Mobility Management In the Imsmentioning

confidence: 99%

A solution for transparent mobility with route optimization in the IP multimedia subsystem

Vidal

García-Reinoso

Soto

et al. 2013

Computer Communications

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This paper presents TRIM+, an architecture for transparent mobility management with route optimiza tion in IMS based networks. The design of our architecture is based on a previous work referred to as TRIM. TRIM was originally devised to provide transparent mobility support in the IMS, although transpar ency came at the cost of using a suboptimal data path between communicating end points. TRIM+ main tains transparency as a design criterium, and thus end user applications, running at the mobile node and its correspondent communication peers, are unaware of mobility management procedures. Additionally, the proposed design defines a set of route optimization procedures, allowing compliant devices to use the optimal data path for media communications. Furthermore, TRIM+ addresses packet loss management in scenarios where the media path cannot be maintained during the handover of the MN. To this end, our architecture enables the MN to request buffering capacity in its home network to temporarily store incoming media traffic during the handover, which would otherwise be dropped. This mechanism, as well as route optimization procedures, are executed transparently to the end user applications running at the communicating end points. As a proof of concept, we have implemented a software prototype of the TRIM+ architecture, deploying it over a real IMS testbed. By means of a set of experiments, we have val idated the mechanisms proposed in this paper, considering both UDP and TCP user traffic.

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Transparent network-assisted flow mobility for multimedia applications in IMS environments

Cited by 4 publications

References 10 publications

Modified hybrid coupled architecture for UMTS-WiMAX-WLAN overlay networks using IMS

Modified hybrid coupled architecture for UMTS-WiMAX-WLAN overlay networks using IMS

CATMISS: context-aware transparent mobility for IMS services

A solution for transparent mobility with route optimization in the IP multimedia subsystem

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