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Communication Technology Proceedings, 1996. ICCT'96., 1996 International Conference on

Date 5-7 May 1996

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Displaying Results 1 - 25 of 128
  • Author index

    Publication Year: 1996
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    Freely Available from IEEE
  • A design of the OAM flow in the ring topology ATM networks

    Publication Year: 1996, Page(s):747 - 750 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    In ATM networks, there are many functions used for network management. One of these functions is the layer management protocol. The fault maintenance function of the layer management protocol transfers defects information between layer management entities to localize the path defect. An ATM device that has defects in the transmission path may initiate the ATM layer OAM flows. If we have an unsymme... View full abstract»

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  • DBAS-A Digital Broadband Access System for flexible introduction of broadband services

    Publication Year: 1996, Page(s):743 - 746 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    The changing telecommunication environment in terms of service evolution, deregulation, and distribution technologies has a great impact on the network structures and requirements for the equipment. These changes heavily impact the access area, i.e. the area between the service nodes and the subscribers. Within this paper a concept of a wire-based Digital Broadband Access System called DBAS will b... View full abstract»

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  • Wireless networking architecture and signaling for rapid deployment of rural communications

    Publication Year: 1996, Page(s):702 - 705 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    We put forward a self-contained wireless (cellular) networking architecture for rapid deployment of rural communications. With a distributed database for network management, a decentralized architecture for bearer traffic, and a simpler wired interface to the PSTN, the networking architecture shows potential advantages in mobility for moving customers, flexibility in network planning and upgrading... View full abstract»

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  • The research on wireless ATM architecture

    Publication Year: 1996, Page(s):739 - 742 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    Each wireless technology now used is optimized just for some particular applications and environments. However, the next generation wireless networks coexisting with fiber-optic based broadband communication networks will be required to operate over a wide range of cell size (from picocell to massive satellite cell) and offer multimedia services where each service may have a unique rate. A new arc... View full abstract»

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  • A new linear multiuser detector in asynchronous CDMA systems

    Publication Year: 1996, Page(s):1114 - 1117 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB)

    This paper puts forward a new multiuser detector in asynchronous CDMA systems. Unlike the existing asynchronous detectors, the new detector is characterized by its low cost of computation and easy realization. Furthermore, the performance of the proposed algorithm is superior to the conventional method. To achieve these performance advantages, some changes have been made in the asynchronous CDMA s... View full abstract»

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  • Design of an ASIC for the ATM layer functions

    Publication Year: 1996, Page(s):723 - 726 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    This paper describes the implementation of an ASIC, called ASAH-L (ATM subscriber access handler-logical), for the ATM-layer functions to develop network equipment in B-ISDN. ASAH-L is applicable to network-network interfaces or user-network interfaces and has F4 or F5 level OAM functions with real time processing defined by ITU-TS. Also it provides QOS and network parameter processing, a feature ... View full abstract»

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  • CDMA communication system with trellis coding and orthogonal signaling

    Publication Year: 1996, Page(s):1098 - 1101 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    We discuss the application of trellis coding in a (direct sequence spread spectrum) CDMA system where orthogonal signaling is used. Our approach is to construct the trellis codes over the set of biorthogonal sequences. A general analysis is presented. We compared the analysis with computer simulation. The results show that the trellis coded CDMA system outperforms the corresponding uncoded DS/SSMA... View full abstract»

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  • Multimedia and multiparty control: the intelligent network solution

    Publication Year: 1996, Page(s):875 - 878 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    New telecommunication architectures must support advanced multimedia and multiparty services. Our work is based on the extension of the intelligent network control to support an advanced videoconference service. In order to cope with the increasing complexity of telecommunication services it becomes necessary to define basic components within these services. These components can be regarded as the... View full abstract»

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  • Performance analysis of finite output buffer ATM switch with Bernoulli arrival of two priorities

    Publication Year: 1996, Page(s):965 - 969 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    A theoretical queue model of an ATM switch with Bernoulli arrivals of two priorities and finite output buffer capacity is developed. The average queue size, the loss probability of packets and the average waiting times are considered. Finally, a computer simulation proved the results of the analysis View full abstract»

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  • A network model for B-ISDN services

    Publication Year: 1996, Page(s):697 - 701 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    There are various types of services on a telecommunication network. This paper examines several types of multimedia services and subscriber network architectures from the service nodes to the terminals on the B-ISDN network. We propose a conceptual services model that can be applied to several ITU-T classified multimedia services. Each service model presents its own service characteristics and net... View full abstract»

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  • ATM switched virtual circuits: enabler for broadband market growth

    Publication Year: 1996, Page(s):735 - 738 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    ATM switched virtual circuits (SVC) introduces an important dimension to the broadband service offering by allowing users to set up connections without the manual interaction needed to set up PVCs. This paper presents a case study of the health care market performed to demonstrate the ability of SVCs to be deployed and priced to cost-effectively interconnect multiple tiers of a multi-hospital syst... View full abstract»

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  • Despreading techniques on IS-95 forward channels with synchronous system timing

    Publication Year: 1996, Page(s):1110 - 1113 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    This paper presents a full-digital design of demodulating the forward CDMA channel which are spread according to IS-95. The system timing and combination of multi-PN-codes are considered. The discussion on tailoring the design for digital devices is also given View full abstract»

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  • Design of improved GMSK quadrature modulator

    Publication Year: 1996, Page(s):781 - 786 vol.2
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    We propose an improved Gaussian baseband filtered minimum shift keying (GMSK) quadrature modulator using a finite impulse response (FIR) filter whose coefficients are given by the difference of the phase response to remove the coefficient noise resulting from the conventional method. The modulator is designed by considering the effects resulting from the difference between the ideal analog signal ... View full abstract»

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  • The information carrying in vector quantized images

    Publication Year: 1996, Page(s):662 - 665 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (604 KB)

    In storage and transmission, independent messages are often uniformly coded to meet various purposes. Considering this kind of process, we propose the concept of information carrying for data security. The procedure to append another kind of information to the media carrying a certain kind of information is called information carrying. Information is always stored and transmitted in a certain form... View full abstract»

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  • Analysis of a slotted access channel with average cycle method

    Publication Year: 1996, Page(s):1080 - 1083 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    Random access techniques in the packet broadcasting environment are a very important research topic. A broadcast channel is a radio packet communication channel, and the relative distances between the users and the receiver can vary greatly. Thus, packets from different transmitters arrive at the receiver with substantially different power levels. These phenomena give rise to a capture effect at t... View full abstract»

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  • An improved algorithm for generating sum of disjoint products

    Publication Year: 1996, Page(s):719 - 722 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    Both the ALR (Abraham-Locks revised) and ALW minimizing algorithms are efficient systematic procedures for obtaining nearly minimal SDP system reliability formulas for coherent source-to-terminal networks. These two procedures differ only in the manner in which the minimal paths of the system are ordered, but are the same in all other respects. This paper presents an improved algorithm, based on A... View full abstract»

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  • A time code division multiple access (TCDMA) system proposal for indoor wireless communications

    Publication Year: 1996, Page(s):1094 - 1097 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Indoor environments for mobile radio communications provide special challenges due to the physical characteristics of the radio wave propagation. A hybrid access scheme (combining the advantages of both TDMA and wideband CDMA) called time code division multiple access (TCDMA) is proposed and investigated for indoor wireless communications. The indoor radio channel is modeled in terms of channel im... View full abstract»

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  • Applying object-oriented analysis and design in SDH network management system

    Publication Year: 1996, Page(s):870 - 874 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    Optical fiber SDH transmission network is under fast developing in China, network management is its key technology, unlike the traditional approach, ITU-T had published a series of recommendations, using the object oriented techniques, this paper analysis its main issue and introduce a real application View full abstract»

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  • Software creation: an intelligent CASE tool experiment for switching software

    Publication Year: 1996, Page(s):961 - 964 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    This paper reports on an automatic software design system used for a switching control system. The design knowledge is gained from diagrams produced by a CASE tool during the initial human design, is stored in each corresponding expert system unit, and is reused for reproducing the design. The design procedure consists of splitting a call process, inserting tasks and detailing. Various considerati... View full abstract»

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  • On the performance analysis of multidimensional TCM DS/SSMA in Rayleigh fading channel

    Publication Year: 1996, Page(s):767 - 770 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    Multidimensional trellis-coded modulation (multi-D TCM) is applied to direct sequence spread spectrum multiple access DS/SSMA system in a Rayleigh fading channel. New models for multi-spread and multi-correlation reception at the transmitter and receiver are proposed. Based these models we study the performance of multi-D TCM DS/SSMA systems in a Rayleigh fading channel. The simulation results sho... View full abstract»

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  • Extending SDH benefits to radio networks

    Publication Year: 1996, Page(s):1004 - 1008 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    The worldwide introduction of synchronous digital hierarchy in telecommunications networks, combined with a fast evolution of radio applications in the access areas, has originated a new generation radio family, offering a complete range of transported capacities and frequency bands. Some major innovative aspects of this new SDH radio are highlighted focusing on adopted baseband and microwave tech... View full abstract»

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  • Update on VOD trials

    Publication Year: 1996, Page(s):1033 - 1036 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    In Alcatel Telecom Antwerp, together with Alcatel Telecom Stuttgart (Germany) and Alcatel Telecom Velizy (France), the development of broadband exchanges started in 1986 as research project. It resulted in a first demonstration at Telecom Geneva 1991. In the last year the broadband product became mature, and the first commercial projects became reality. Beside some pure broadband projects, a numbe... View full abstract»

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  • A blind equalizer based on nonlinear dynamics neural networks

    Publication Year: 1996, Page(s):920 - 925 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    Based on nonlinear dynamics theory, this article presents an artificial neural network (ANN) blind equalizer associated with its nonlinear dynamic equation and its stability conditions. Simulation results indicate that this ANN blind equalizer has a very strong tolerance of and adaptation to the time-varying high speed channel. The bit rate of its equalized channel can be as high as 10 Gbps View full abstract»

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  • Image quality estimation in subband coding techniques based on human visual system

    Publication Year: 1996, Page(s):651 - 653 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    This paper seeks to provide image quality estimation in subband coding techniques based on the human visual system. Subband coding techniques using differential pulse code modulation and the discrete cosine transform with some practical results are demonstrated. A simple objective measure for image quality is recommended View full abstract»

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