Scalable qos-aware mobility for future mobile operators

Aguiar, Rui L.; Sargento, Susana; Banchs, Albert; Bernardo, C.J.; Calderón, María; Soto, Ignacio; Liebsch, Marco; Melia, Telemaco; Pacyna, Piotr

doi:10.1109/mcom.2006.1668426

Cited by 19 publications

(13 citation statements)

References 8 publications

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“…Standardization bodies such as the Internet Engineering Task Force (IETF) have developed solutions for mobility support in IPv4 [10] and IPv6 [11], for improved IP handover performance [12,13], and for supporting the movement of networks as a whole [14]. Researchers have also addressed these topics with different points of view [15][16][17][18][19][20]. However, macro-mobility (changing network and IP address) in IMS-based networks is very difficult to achieve with existing standards [21], although this type of mobility is expected to become very common.…”

Section: Alternatives For Ue Mobility In An Ims-based Iptv Servicementioning

confidence: 99%

Supporting mobility in an IMS-based P2P IPTV service: A proactive context transfer mechanism

Vidal

García-Reinoso

Oliva

et al. 2010

Computer Communications

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Abstract:In recent years, IPTV has received an increasing amount of interest from the industry, commercial provid-ers and the research community, alike. In this context, standardization bodies, such as ETSI and ITU-T, are specifying the architecture of IPTV systems based on IP multicast. An interesting alternative to support the IPTV service delivery relies on the Peer-to-Peer (P2P) paradigm to distribute and push the streaming effort towards the network edge. However, while P2P IPTV was studied in fixed access technologies, there has been little attention paid to the implications arising in mobile environments. One of these involves the service handover when the user moves to a different network. By analyzing previous work from the perspective of an IPTV service, we concluded that a proactive approach is necessary for the handling of inter-network handovers. In this paper, we propose a new general handover mechanism for the IP Multimedia Subsystem (IMS), while studying its applicability to a P2P IPTV service. Our solution, called pro-active context transfer service, incorporates the existing IEEE 802.21 technology in order to minimize the handover delay. The proposal is validated by comparing it against solutions derived from previous work.

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Section: Alternatives For Ue Mobility In An Ims-based Iptv Servicementioning

confidence: 99%

Supporting mobility in an IMS-based P2P IPTV service: A proactive context transfer mechanism

Vidal

García-Reinoso

Oliva

et al. 2010

Computer Communications

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“…The Daidalos QoS architecture [13] is mainly composed of 3 entities: the QoS Broker, the Access Router and the A4C server [14] .The QoS Broker acts as the network PDP. To setup a distributed network that can scale to millions of customers and a maintain a centralized mechanism to coordinate the network, several QoS Brokers can co-exist with a Core QoS Broker that centrally manage all the others in the same operational domain.…”

Section: B the Projects Daidalos And Daidalos IImentioning

confidence: 99%

Evaluation of policy-based admission control mechanisms in NGN

Gonçalves

Azevedo

Gomes

et al. 2009

2009 International Conference on Telecommunications

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Abstract-The 3GPP consortium proposed in the release 7 of the IP Multimedia Subsystem (IMS) a Diameter interface for the resource admission communication process replacing the previous COPS solution. Although both academic and industry communities have deeply debate the advantages and disadvantages of each protocol, its impact in NGN may have not been thoroughly quantified.This paper compares both protocols in terms of messages exchanged between network entities, and of bandwidth requirements during the admission control process. Based on general network operator environment characteristics, we present several exploitation scenarios where it is analyzed the scalability and adequacy of each protocol.

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“…These include mobile IPv6 extension for local mobility management [11], [12] and fast handover support [13], additional consideration of a proactive handover procedure [14], cross-layer interaction between Layer 2 and IP to make movement detection efficient [15], and IP address translation instead of IP-in-IP encapsulation, which is almost always assumed for IP mobility [16], [17]. During handover, QoS should be maintained [18]. To what degree are we going to rely on the end-to-end principle associated with mobile IP [17]?…”

Section: Support For Full Mobilitymentioning

confidence: 99%

Introduction to the Functional Architecture of NGN

Morita¹,

Imanaka²

2007

IEICE Transactions on Communications

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SUMMARYIn July 2006, International Telecommunication UnionTelecommunication Standardization Sector (ITU-T) Study Group 13 initiated the approval process for a batch of framework Recommendations on the Next Generation Network (NGN) Release 1. One of the new Recommendations, Y.2012, illustrates the NGN from the viewpoint of a functional architecture consisting of various functional blocks, namely functional entities. In conjunction with this Recommendation, this paper explains how the NGN can be built and how the NGN utilizes functional entities to provide expected services and required capabilities. This paper also identifies open issues for extending the functional architecture towards Release 2.

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Scalable qos-aware mobility for future mobile operators

Cited by 19 publications

References 8 publications

Supporting mobility in an IMS-based P2P IPTV service: A proactive context transfer mechanism

Supporting mobility in an IMS-based P2P IPTV service: A proactive context transfer mechanism

Evaluation of policy-based admission control mechanisms in NGN

Introduction to the Functional Architecture of NGN

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