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Telecommunications Quality of Services: The Business of Success, 2004. QoS 2004. IEE

Date 2-3 March 2004

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Displaying Results 1 - 25 of 38
  • IP network performance and QoS: signaling and interworking issues

    Publication Year: 2004, Page(s):86 - 93
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1152 KB)

    In 2000, the IAB's RFC 2990, "Next Steps for the IP QoS Architecture", compared IntServ and DiffServ style networks and considered broader architectural approaches/requirements, including: critical "gaps" in routing; resource management; monitoring and accounting; application and service development; incremental, heterogeneous deployment. Therefore, what is needed is "a set of QoS mechanisms and a... View full abstract»

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  • The quality of service - from a philosophical perspective

    Publication Year: 2004, Page(s):119 - 126
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (352 KB)

    The importance of the service that you provide to society carries with it an equally vital responsibility. While not all are in a position to directly control the policies and executive level decisions of organisations, you can make a very important contribution through your individual example. This begins with the realisation of the impact that your decisions and actions have on fellow employees,... View full abstract»

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  • Stochastic reward net end-to-end quality of service (QoS) simulation modeling across ATM network: using the goodput model

    Publication Year: 2004, Page(s):165 - 170
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (202 KB)

    Multiservice network architecture designers the world over are adopting asynchronous transmission mode (ATM) as the backbone data transmission protocol, because of ATM's tested-ability to support very high data rates in a multi-protocol and multilayered data network. To analyse and evaluate a multiservice network's overall performance, the effective throughput model has been used extensively. We e... View full abstract»

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  • Quality differentiation and economic efficiency

    Publication Year: 2004
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (527 KB)

    Summary form only given. The capability to differentiate quality of service is important for networks in order to improve their economic efficiency. In such a 'market-managed' network, customers can express their preferences and acquire the resources for which they are willing to pay. Prices, if set correctly, can provide the right incentives so that network resources can be used more efficiently,... View full abstract»

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  • Quality of service in TCP/IP networks: a DiffServ testbed

    Publication Year: 2004, Page(s):141 - 145
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (320 KB)

    An implementation of the weighted fair queue algorithm on a Pentium/Windows 2000 platform is presented with preliminary test results. This is part of a DiffServ testbed being developed at the University of Greenwich for evaluating various design options relating to the provision of quality of service over the Internet. The present implementation includes: (a) a packet classifier which assigns inco... View full abstract»

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  • Improving the quality of service in dead spots areas of UMTS networks

    Publication Year: 2004, Page(s):127 - 131
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (252 KB)

    Providing 100% reliable radio coverage within their service area is a very challenging task for mobile operators. This is especially true in areas that experience abnormal attenuation to radio frequency (RF), due to natural features or man-made structures. The signal quality in these areas needs to be improved by enhancing the weak RF signal. Building a new base station (BS) is the best solution. ... View full abstract»

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  • Analysis of a quality of service algorithm for wide-area private mobile radio systems

    Publication Year: 2004, Page(s):171 - 174
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (256 KB)

    The paper concerns the analysis of an algorithm used for assigning frequencies to non-cellular non-trunked private mobile radio (PMR) systems. The PMR assignment algorithm was first put forward by D.F. Bacon (see Proc. IEE Conf. on Getting the Most Out of the Radio Spectrum, 2002). The authors have applied this algorithm to practical data and analysed the resulting radio spectrum into which the pr... View full abstract»

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  • Control theory approach for implementation of dynamic pricing in mobile cellular networks

    Publication Year: 2004, Page(s):160 - 164
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (283 KB)

    Accurate forecasting of future demand for cellular services is essential, as, due to the high infrastructure implementation costs involved, overestimation of demand could be very costly. In addition, the difference between peak and off-peak demand for wireless services can be very significant, both temporally and spatially, and gearing the network to meet peak demand would result in under-utilised... View full abstract»

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  • IPCablecom as transport platform for interactive multimedia services in cable TV networks

    Publication Year: 2004, Page(s):94 - 98
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (346 KB)

    With the introduction of cable communication systems such as DOCSIS or Euro-DOCSIS and enhancements by end-to-end platforms like IPCablecom, it became possible to transmit time-critical, IP based, multimedia services across cable TV networks. The paper introduces an architecture that exploits the functionality of IPCablecom as a transport platform, integrating it into the service environment defin... View full abstract»

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  • So you think you can measure IP QoS?

    Publication Year: 2004, Page(s):151 - 155
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (290 KB)

    For broadband networking to be a commercial success, operators need to provide differentiated levels of quality of service (QoS). Networks are shared infrastructures of buffering and bandwidth resources, and are designed to bound the delays and losses inherent in packet queueing technology. But can customers be sure they are getting the QoS they are paying for? It is thought that active probing gi... View full abstract»

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  • Blank Page

    Publication Year: 2004, Page(s): 0_2
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (10 KB)

    First Page of the Article
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  • Defining and monitoring QOS metrics in the next generation wireless networks

    Publication Year: 2004, Page(s):37 - 42
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (325 KB)

    Defining and monitoring QoS metrics for service level agreements (SLA) in next generation wireless networks is a challenging task for a service provider. Some complex issues that need to be addressed are: different QoS requirements for different classes of applications; support of real-time applications (such as voice, video) over packet based networks; heterogeneous characteristics of wireless an... View full abstract»

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  • Back Cover

    Publication Year: 2004, Page(s): 186
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (12 KB)

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  • New QoS metrics and application layer proxy for GPRS/UMTS Internet access

    Publication Year: 2004, Page(s):180 - 184
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (322 KB)

    Despite the fact that the third generation (3G) mobile system is expected to provide a wide range of services, including data access, it has been designed primarily for voice services and it provides QoS guarantee in terms of bit rate and delay. These QoS metrics are more suitable for a real time streaming service rather than the dominant data service in the Internet. The paper proposes new QoS me... View full abstract»

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  • A new VoIP adaptive playout algorithm

    Publication Year: 2004, Page(s):99 - 103
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (224 KB)

    A novel playout algorithm for VoIP applications is presented. The playout times of voice packets are calculated using adaptive estimation of network delays. In contrast to previous solutions, the weighting factor that controls the estimation process is dynamically adjusted according to the observed delay variations. This results in higher-quality estimates of network delays. With this algorithm, t... View full abstract»

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  • Quality of service to subscriber

    Publication Year: 2004, Page(s):48 - 51
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (219 KB)

    The mobile telecom industry has been able to specify what is required for monitoring and measuring quality of service (QoS) which means specifying the level of quality which should be provided for a service. By service, the paper refers to the mobile network's service level not service connotations like customer care, sales support, repair time, provisioning, etc. Here, QoS specifically refers to ... View full abstract»

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  • A MIP-SIP macro-mobility management scheme for VoIP across wired and wireless domains

    Publication Year: 2004, Page(s):114 - 118
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (311 KB)

    With the convergence of the Internet and cellular networks, voice-over-IP (VoIP) applications across wired and wireless domains are of increasing importance. Two major mobility management protocols, Mobile IP (MIP) and session initiation protocol (SIP), have been proposed to handle macro-mobility in the network layer and the application layer respectively, either independently or jointly for diffe... View full abstract»

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  • Integrated algorithm of HMIPv6 & MPLS for ns to support next generation wireless networks

    Publication Year: 2004, Page(s):156 - 159
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (237 KB)

    The paper highlights the advantages of HMIPv6 (hierarchical Mobile IPv6) and MPLS integration in the aspect of guaranteed and efficient end-to-end QoS provision in multi-domain wireless networks. The multiple domain scenario of radio access networks is considered and we focus on traffic transmission from/to a mobile host (MH) and a correspondent node (CN). Agent advertisement, MH registration, lab... View full abstract»

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  • Traffic dimensioning for GSM-over-IP services

    Publication Year: 2004, Page(s):136 - 140
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (324 KB)

    The cost of the link connecting the backbone network and customer premises has a major effect on the uptake of IP-based wireless office technology. The paper describes the factors influencing the dimensioning of this link, by taking into consideration a system which uses the IP network in order to deliver voice and signalling to a GSM radio access system. Through simulation, it is shown that disco... View full abstract»

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  • A legacy of echo and silence

    Publication Year: 2004, Page(s):109 - 113
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (285 KB)

    The paper discusses voice transmission quality issues relating to interworking between VoIP and PSTN "legacy" networks. The evolution of voice quality with technological progress in the PSTN from its inception to the present day VoIP systems is described and this sets the scene for discussion of echo control and silence removal in case study examples. View full abstract»

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  • Telecommunications Quality of Service: The Business of Success (QoS 2004)

    Publication Year: 2004
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (35 KB)

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  • The IEE Telecommunications Quality of Service: the busniess of success (QoS 2004)

    Publication Year: 2004, Page(s): 0_3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (15 KB)

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  • Intelligent packet scheduler for general packet radio service

    Publication Year: 2004, Page(s):43 - 47
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (259 KB)

    The general packet radio service (GPRS) augments GSM to provide packet switched data services to mobile users. Packet scheduling in GPRS is dynamic and several scheduling techniques have been implemented, for example round robin; however, these generally assure only best effort quality of service. We compare prominent scheduling algorithms by simulation of Web and E-mail traffic finding that earli... View full abstract»

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  • Authors List

    Publication Year: 2004, Page(s): 0_8
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (24 KB)

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  • Delivering satellite telecommunications to the Ministry of Defence, where quality of service can mean the difference between life and death

    Publication Year: 2004, Page(s):175 - 179
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (311 KB)

    Satellite telecommunications services for military and government customers are required to provide reliable, flexible and secure communications, at short notice, anywhere in the world. The UK Armed Forces have come to rely increasingly on this capability. Under contract, Paradigm Services have taken over, from the UK Ministry of Defence, the provision and operation of MOD's satellite telecommunic... View full abstract»

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