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Proceedings IEEE International Symposium on Computers and Communications (Cat. No.PR00250)

6-8 July 1999

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  • Proceedings IEEE International Symposium on Computers and Communications (Cat. No.PR00250)

    Publication Year: 1999
    Request permission for commercial reuse | PDF file iconPDF (290 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 1999, Page(s):485 - 486
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    Freely Available from IEEE
  • Image browsing using hierarchical clustering

    Publication Year: 1999, Page(s):301 - 307
    Cited by:  Papers (21)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB)

    Digital images and video clips are becoming popular due to the increase in the availability of consumer devices that capture digital images and video clips. Digital content is also growing over the Internet. The increase of the digital content creates a need for user-friendly tools to browse through large volumes of digital material. We present a clustering-based browsing algorithm. Images are aut... View full abstract»

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  • Efficient integrated collaborative production of high-end audio-visual content

    Publication Year: 1999, Page(s):294 - 300
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    In recent years the world has witnessed an unprecedented expansion in the global audio-visual industry and actions have been initiated to strengthen its actors, especially in film-making and video production. Companies seeking ways to improve their performance and productivity and become more competitive are investing in modern digital technologies. Very powerful high-performance computing systems... View full abstract»

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  • On network survivability algorithms based on trellis graph transformations

    Publication Year: 1999, Page(s):235 - 243
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB)

    Due to the wide range of services being supported, telecommunications networks are loaded with massive quantities of information. This stimulates extra concern for network survivability. In this paper, we use graph theoretic techniques for addressing network survivability issues by transforming the original network topology onto a trellis graph, which allows the application of computationally effi... View full abstract»

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  • A distributed Web document database and its supporting environment

    Publication Year: 1999, Page(s):287 - 293
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    We propose a new Web documentation database as a supporting environment of the Multimedia Micro-University project. The design of this database facilitates a Web documentation development paradigm that we have proposed earlier. From a script description to its implementation as well as testing records, the database and its interface allow the user to design Web documents as virtual courses to be u... View full abstract»

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  • Expandable and fault tolerant computers and communications systems -autonomous decentralized systems

    Publication Year: 1999, Page(s):228 - 234
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    Under the evolutionary situation in market and technology, computers and communications application systems are required to attain not only the online property for non-stop operation during partial expansion, maintenance and at the time of a fault but also the flexibility and timeliness to supply the new products and services. Autonomous decentralized systems (ADS) are proposed for these requireme... View full abstract»

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  • DMT signals with low peak-to-average power ratio

    Publication Year: 1999, Page(s):362 - 368
    Cited by:  Papers (1)  |  Patents (56)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    This contribution proposes a new family of methods to reduce the peak-to-average power ratio (PAR) in discrete multi-tone (DMT) and orthogonal frequency division multiplexing (OFDM) systems. This method avoids the use of extra inverse fast Fourier transformations (IFFT) as were used in some previously published techniques, but instead is based on transformations in the time domain of the original ... View full abstract»

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  • A charging model for sessions on the Internet

    Publication Year: 1999, Page(s):32 - 38
    Cited by:  Papers (1)  |  Patents (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    A chargeable session on the Internet may consist of more than one underlying chargeable service. Typically there will be two, one at the network layer and one at the session layer. Since different applications can have different demands from the network, a generic charging scheme has to separate the service provided by the network from the service provided by an application/service provider. In th... View full abstract»

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  • A multiuser approach to minimum-error-probability detection for narrowband multiple access data-systems affected by ISI and CCI

    Publication Year: 1999, Page(s):471 - 477
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    In this contribution, novel symbol-by-symbol (SbS)-type maximum a posteriori probability (MAP) receivers are presented for non spread-spectrum (SS) multiple-access (MAC) narrowband systems impaired by ISI and co-channel interference (CCI). The proposed decentralized type receivers minimize the error probability in the detection of the desired user message on a per-symbol basis. A practical applica... View full abstract»

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  • Multimedia information distribution through event notification

    Publication Year: 1999, Page(s):280 - 286
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    We describe a Java-based event notification service aimed at managing and distributing events occurring in distributed virtual environments. We first concentrate on design issues related to the modeling of our event service by applying some object-oriented design patterns. We then describe an implementation of TV news broadcast based on both Javasoft's Javabean architecture and distributed middlew... View full abstract»

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  • Joint source/channel soft Viterbi decoding

    Publication Year: 1999, Page(s):467 - 470
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    The design criterion of a joint source/channel soft decision decoder is developed with both binary convolutional codes and nonbinary dual-k codes. The performance of the modified decoder is evaluated and compared to the performance of the decoder proposed by Sayood et al. (1994) by Monte Carlo simulations. As expected, the soft decision system outperforms the hard decision system simulated by Sayo... View full abstract»

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  • Buffer sharing at the base station for seamless handover in mobile ATM networks

    Publication Year: 1999, Page(s):354 - 360
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    Management of terminal handovers is one of the challenges in mobile wireless ATM (W-ATM) systems due to the connection-oriented nature of ATM. When the ATM connection is re-established to follow the terminal roaming from one base station to another, seamless handover is necessary to guarantee the required quality of service (QoS). A promising procedure is based on the use of handover buffers at th... View full abstract»

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  • Structure and performance evaluation of a replicated banyan network based ATM switch

    Publication Year: 1999, Page(s):258 - 265
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    Banyan networks are commonly used as interconnection structures in ATM switches. This paper is concerned with the replication technique which was applied to the standard banyan networks. We apply this technique to the plane interconnected parallel network (PIPN) which is a switch introduced previously as a better banyan-based interconnection structure. The normalized throughput of unbuffered and b... View full abstract»

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  • A CORBA-based application service middleware architecture and implementation

    Publication Year: 1999, Page(s):130 - 136
    Cited by:  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    With the advent of distributed computing, application management is driven into a new era. In this world, application quality of service, resource availability at different domains, and user requirements, are combined in a dynamic, synergistic, and geographically broad cooperation. We present an architecture and initial implementation of a middleware that satisfies user requests according to expec... View full abstract»

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  • Customer service management: towards a management information base for an IP connectivity service

    Publication Year: 1999, Page(s):149 - 155
    Cited by:  Papers (2)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    Customer service management (CSM) offers a management interface between customer and service provider which enables customers to individually monitor and control their subscribed service. This paper presents an approach towards the definition, implementation and instantiation of a CSM management information base for an IP connectivity service (CSM-IP-MIB). The approach uses object-oriented techniq... View full abstract»

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  • A dynamic channel pre-reservation scheme for handoffs with GoS guarantee in mobile networks

    Publication Year: 1999, Page(s):404 - 408
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    It is foreseeable that a micro/pico-cellular architecture will be the most attractive wireless communication solution in the future because of the high frequency reuse the structure can support. Due to smaller cell size, the rate of call handoffs should increase. From a user's perspective, having a call abruptly terminated in the middle of a conversation is far more annoying than having a new call... View full abstract»

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  • Framework for translation of QoS and performance parameters between ATM and IP

    Publication Year: 1999, Page(s):390 - 396
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    Quality of service (QoS) is a major issue in the recent and current developments of telecommunication networks, notably in the ATM-based B-ISDN or the emerging QoS-capable IP networks. As in most cases where IP runs over ATM, translation of QoS between them, through the translation of their respective performance parameters (PPs), is central to the overall end-to-end performance and is the focus o... View full abstract»

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  • A new I/O interface architecture for high-speed data communication

    Publication Year: 1999, Page(s):216 - 225
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    We study the architectural impact of the I/O subsystem design on the performance of high-speed networks. We developed a new architecture for this I/O subsystem. The new architecture resolves the “windowing out” and the “delayed acknowledgment” problems that are raised in the current architectures. It also speeds up the receiver's absorbing process and improves the network u... View full abstract»

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  • Performance analysis for a new automatic error control system for overcoming turbulent fading errors for wireless ATM networks

    Publication Year: 1999, Page(s):310 - 316
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    This paper suggests and analyzes the performance of a new wireless ATM adaptive error control system, which can be used in wireless ATM networks to improve quality of service in keeping the cell loss under a certain predefined limit and reducing the average delay of cell encoding. The new system is based on multi-level forward error correction (FEC), and specifically the Bose-Chaudhuri-Hocqenghem ... View full abstract»

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  • Neural network-based voice quality measurement technique

    Publication Year: 1999, Page(s):375 - 381
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    In this paper, we present a novel neural network-based predictor for subjective quality of speech signals. The output from the predictor is the estimated subjective quality or mean opinion score (MOS). The internal representation of signals is calculated using a model for the human auditory system. The perceptual distance between the reference speech and the speech sample under test is used as inp... View full abstract»

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  • Methods for IPv4-IPv6 transition

    Publication Year: 1999, Page(s):478 - 484
    Cited by:  Papers (4)  |  Patents (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    The future Internet networks are expected to use IPv6 version rather than the IPv4 one. This is mainly due to the limitations of IPv4 in terms of addresses, routing and security QoS issues developed by the Internet community are also tailored for both versions and will be easily deployed in both sides. Since a huge amount of sub-networks are already installed for the v4 version, it is difficult to... View full abstract»

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  • Towards TCP-friendly adaptive multimedia applications based on RTP

    Publication Year: 1999, Page(s):166 - 172
    Cited by:  Papers (5)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    For multimedia senders to benefit the most of dynamically changing availability of network resources they need to adjust their transmission behavior in accordance with the network congestion state. In this paper we investigate various mechanisms for realizing an additive increase and multiplicative decrease adaptation scheme based on the real-time transport protocol (RTP). Through analysis and sim... View full abstract»

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  • A secure group membership verification protocol for IP multicast

    Publication Year: 1999, Page(s):9 - 15
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    The current work proposes a secure group membership verification (SGMV) protocol for IP multicast. The aim of the SGMV protocol is to allow any valid members of a multicast group to verify the membership of the group without a (trusted) third party vouching for a complete membership list. SGMV allows a valid member of the multicast group to verify the membership of the group on its own and in real... View full abstract»

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  • Effect of user mobility on the QoS parameters for the guard channel policy

    Publication Year: 1999, Page(s):409 - 415
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    In this paper, we studied the effect of the user mobility parameters on the quality of service parameters of the guard channel policy; namely: new call blocking probability and handoff call blocking probability. The high-way mobility model was utilized to define the traffic parameters of the user in terms of its mobility parameters, namely; average velocity of the user and the radius of the cell. ... View full abstract»

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