A Strategy for Harmonised QoS Manipulation in Heterogeneous IMS Networks

Tompros, Spyridon L.; Kavadias, Christoforos; Vergados, Dimitrios D.; Mouratidis, Nikolaos

doi:10.1007/s11277-008-9566-2

Cited by 11 publications

(4 citation statements)

References 13 publications

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“…With this methodology, they are allowed to combine service functions together in order to provide a specific functionality, in contrast to the traditional vertical service integration, which basically provides all the functionality with one service module. There are more studies concerning different problems in QoS on IMS, like [10], [11], and [12]; however, the problem introduced by dynamic QoS requirements, service level relocation, and their effect in the transport network, has not been considered.…”

Section: Related Workmentioning

confidence: 99%

An IMS Architecture and Algorithm Proposal with QoS Parameters for Flexible Convergent Services with Dynamic Requirements

Navarro

Donoso

2012

INT J COMPUT COMMUN

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Abstract:Quality of Service (QoS) provisioning is one of the main requirements in the 3GPP IP Multimedia Subsystem (IMS) and it has been addressed in different works since the beginning of the IMS standardization process. As a result of the fixed and mobile networks evolution, the parameters standardized in IMS have changed constantly until the specification of the Policy and Charging Control (PCC) architecture that integrates IMS QoS and charging functionalities. However, current IMS QoS specifications still have some limitations to handle service flexibility that is required to provide Internet services over IMS. In this work, we propose an enhanced IMS QoS architecture to support efficient QoS providing for flexible services with dynamic requirements. This proposal is compared against different approaches to evaluate their behavior under network saturation conditions. Simulations results show that the architecture we propose achieves efficiency and flexibility, maintaining the number of blocked and active sessions, and increasing the number of high priority sessions activated in a saturated network.

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Section: Related Workmentioning

confidence: 99%

An IMS Architecture and Algorithm Proposal with QoS Parameters for Flexible Convergent Services with Dynamic Requirements

Navarro

Donoso

2012

INT J COMPUT COMMUN

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“…SME is responsible for the management of the multimedia sessions within the system. SME uses Session Initiation Protocol (SIP) [23] signaling to monitor and manage the call and media sessions between the service providers and users. For the management of services, ISMS uses service-level managed objects (SMOs) (which provide the performance, configuration, and fault parameters of services) provided by the servers in the application layer or third party servers [22].…”

Section: Management In Ip Multimedia Subsystem and Service Delivery P...mentioning

confidence: 99%

“…Both SIP-SSP and SIP-ISP are request-response protocols. An INFO message [24] is used for Request and a Response is sent back using another INFO message, as there is no response message to INFO message in SIP protocol, except "200 OK" [23]. All the SIP based protocols are supported by the SIP module present in the set-top box.…”

Section: Protocolsmentioning

confidence: 99%

A Set-top Box with Virtual Platform Support for QoS Management in IMS Based Multiple Provider Networks

2012

KSII TIIS

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Set-top Box (STB) has evolved from being a device just sitting on top of a TV shelf to a device providing a gateway to the Internet for a home network, receiving services from multiple content providers, and enabling and ensuring Quality of Service (QoS) for the streaming media. IP Multimedia Subsystem (IMS), with its promise to provide a converged access network for multimedia service delivery (such as Triple play & Quadruple play services), has to guarantee QoS support. To enable QoS in IMS-based networks, we have designed a set-top box which provides feedback to the service provider to ensure end-to-end QoS. Our set-top box is designed to provide virtual platforms such that it can support multiple service providers. Each service provider is able to manage its own multimedia streams and ensures the desired network performance for each flow. The set-top box also works as a Home Gateway and provides end-to-end QoS support to the client nodes.

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“…However, the interaction with DVB is not straightforward. Concerning QoS, although there is much work on QoS architectures [7][8][9] [10], and its integration with mobility [11], none of them addresses the support of DVB unidirectional networks. Concerning unidirectional links, the Link Layer Tunneling Mechanism (LLTM) defined by the UDLR WG [21] is the most common approach of integration while not considering mobility itself.…”

mentioning

confidence: 99%

Mobility with QoS in Broadcast Unidirectional Technologies: Experimental Validation

Sargento

Gozdecki

Wagner

et al. 2010

2010 IEEE International Conference on Communications

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Although mass entertainment markets, such as entertainment TV, were previously on the control of broadcast operators, the increased interest in supporting these multimedia services "anywhere and anyhow" is driving the interest of wireless operators. Therefore, the integration of broadcast technologies in the next generation networks is now a reality. However, since broadcast technologies are unidirectional, their use in mobile interactive communications requires the support of other technologies to enable the upstream communication through a return channel.This paper presents an experimental setup of the architecture developed in the framework of the IST-Daidalos project that is able to provide multimedia and interactive services through a heterogeneous network integrating DVB technology, and enabling seamless and media independent handovers with QoS support. The experimental testbed contains DVB, UMTS, Wi-Fi and Wi-Fi with WiMAX as backhaul technology, and supports seamless handovers with QoS between these technologies, integrating also handover of different return channels. The results show that the handover impact is more noticeable in handovers to DVB and UMTS technologies, when compared to Wi-Fi and WiMAX ones. Nevertheless, when the network is not overloaded, the handover timings do not exceed 200 msec.

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A Strategy for Harmonised QoS Manipulation in Heterogeneous IMS Networks

Cited by 11 publications

References 13 publications

An IMS Architecture and Algorithm Proposal with QoS Parameters for Flexible Convergent Services with Dynamic Requirements

An IMS Architecture and Algorithm Proposal with QoS Parameters for Flexible Convergent Services with Dynamic Requirements

A Set-top Box with Virtual Platform Support for QoS Management in IMS Based Multiple Provider Networks

Mobility with QoS in Broadcast Unidirectional Technologies: Experimental Validation

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