Critical issues for roaming in 3G

Roos, Andreas; Hartman, M.; Dutnall, S.

doi:10.1109/mwc.2003.1182108

Cited by 16 publications

(9 citation statements)

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“…This may apply to international roaming scenarios. It is noted that roaming amongst different operator networks faces several challenges when different RATs or generations of the same RAT are involved [2]. We also expand on the work in [4] by incorporating an inter-domain broker that is synonymous to the NIA in [6] to facilitate service outsourcing amongst multiple operators.…”

Section: The Virtual Home Environmentmentioning

confidence: 99%

“…Moreover, the serving network may totally lack infrastructure for providing some services using particular service delivery models. E.g., a network without IP Multimedia Subsystem (IMS) entities, i.e., the call session control functions (CSCF), is not capable of optimized routing of IMS media traffic [2]. However, the visited network may be the only network having roaming agreements with the home operator of the roaming user; thus it would be impossible to achieve a VHE for the visiting user.…”

Section: Service Outsourcing In Virtual Home Environmentsmentioning

confidence: 99%

“…This value is higher than AP; hence the penalty for accepting outsourced sessions for durations that overlap with blocked home sessions is a lower net income (NI = 57.6) as compared to the expected home income (eHI = 60). This was indicated in [4], where it was stated that for meaningful service outsourcing, N P P > ∑ at all times -see equations (1) and (2). Equation (1) represents the income without service outsourcing.…”

Section: B Financial Impact Of Service Outsourcing For Vhementioning

confidence: 99%

“…Equation (1) represents the income without service outsourcing. The second component in (2) represents income resulting from service outsourcing. A new component that caters for the lost income opportunity due to outsourcing, e.g., blocked home sessions for the candidate operator is introduced in (3).…”

Section: B Financial Impact Of Service Outsourcing For Vhementioning

confidence: 99%

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Service outsourcing to support virtual home environments (VHE)

Ozianyi

Ventura

2008

2008 33rd IEEE Conference on Local Computer Networks (LCN)

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In a virtual home environment (VHE), mobile users may access all services available on their home network, in the same manner and with the same level of service performance. Interaction between users, their home networks and candidate visited networks should be planned for service discovery, and QoS and price negotiation. A further aspect for consideration is the use of networks owned by unaffiliated operators that are candidates for facilitating the VHE, when the affiliated visited does not support the requested service. In this paper we explore VHE aspects and scenarios with the aim of introducing service outsourcing. We extend our earlier work on service outsourcing to VHE where services are outsourced to a candidate network if the custodian visited network cannot meet critical VHE requirements for a user. Through numerical analysis we show that if agreed roaming prices are charged for services delivered on an unaffiliated candidate network wider service usage will occur in VHEs.

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Section: The Virtual Home Environmentmentioning

confidence: 99%

Section: Service Outsourcing In Virtual Home Environmentsmentioning

confidence: 99%

Section: B Financial Impact Of Service Outsourcing For Vhementioning

confidence: 99%

Section: B Financial Impact Of Service Outsourcing For Vhementioning

confidence: 99%

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Service outsourcing to support virtual home environments (VHE)

Ozianyi

Ventura

2008

2008 33rd IEEE Conference on Local Computer Networks (LCN)

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“…On the other hand real-time services require QoS guarantees on the Internet. All-IP architectures have been standardized to support the transmission of both real-time and non-real-time traffic in a homogeneous packet-switched IP network [1]. The rapid growth of the Internet since its inception in 1963 is credited to the non-proprietary nature of development that lacks a centralized management structure.…”

Section: Introductionmentioning

confidence: 99%

XML-Driven Framework for Policy-Based QoS Management of IMS Networks

Ozianyi

Good

Carrilho

et al. 2008

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference

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Policy Based Network Management (PBNM) simplifies the administration and management of communication networks. However due to the wide variety of policy representation forms, interoperability between different entities of PBNM systems becomes a concern. The Common Open Policy Service (COPS), which was standardized for policy control between a Policy Decision Function (PDF) and Policy Enforcement Point (PEP) had considerable shortfalls in efficiency and flexibility -its successor the Diameter protocol exhibits interoperability shortfalls. An XML-based policy provisioning solution presents great modeling capabilities that may overcome these shortfalls. The IP Multimedia Subsystem has adopted PBMN as the mechanism for resource and admission control. This paper reviews an XMLdriven architecture for policy control of DiffServ networks, and explores the incorporation of the proposed architecture into the IMS framework to perform policy control and enforcement. Proof of concept results of the XML-based policy control architecture are presented alongside design requirements for using it as an alternative to Diameter for IMS policy control.

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Impact of mobility on mobile telecommunications networks

Lin

Pang

Rao

2005

Wirel. Commun. Mob. Comput.

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This paper describes the mobility management mechanisms for mobile telecommunications networks. There are two major types of mobility: radio network mobility and core network mobility. Radio network mobility supports radio link switching of a mobile user during conversation, and core network mobility provides roaming and tunnelrelated management for packet re-routing due to user movement. Impact of mobility on both the radio and the core networks is addressed in this paper. Also, potential research issues on these topics are discussed.

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Critical issues for roaming in 3G

Cited by 16 publications

References 0 publications

Service outsourcing to support virtual home environments (VHE)

Service outsourcing to support virtual home environments (VHE)

XML-Driven Framework for Policy-Based QoS Management of IMS Networks

Impact of mobility on mobile telecommunications networks

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