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Global Telecommunications Conference, 1995. GLOBECOM '95., IEEE

Date 14-16 Nov. 1995

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  • Globecom '95 - The Global Telecommunications Conference

    Publication Year: 1995
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    Freely Available from IEEE
  • A lower performance bound for phase estimation over slowly-fading Ricean channels

    Publication Year: 1995, Page(s):2012 - 2016 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1241 KB)

    In this paper we present a fundamental lower bound to the mean-square error of estimators of the phase of a sine wave passed through a Ricean fading channel. As particular cases, expressions of the bound inherent to Gaussian and Rayleigh channels are also provided. The bound is derived from the performance analysis of the Bayes minimum mean-square error phase estimator. The salient features of thi... View full abstract»

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  • CONFERENCE AUTHOR INDEX

    Publication Year: 1995
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    Freely Available from IEEE
  • A novel coding scheme for the transmission of on-line handwriting

    Publication Year: 1995, Page(s):2284 - 2288 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    The proposed adaptive fixed-length differential chain coding (FL-DCC) scheme can be configured as a lower rate, lower resolution or higher rate, higher resolution source codec. The programable-rate FL-DCC codec is embedded in an adaptive transceiver invoking more bandwidth efficient 16-level quadrature amplitude modulation (16 QAM) over benign microcellular channels, while employing more robust 4 ... View full abstract»

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  • Optimized compensation transaction for mobile telecommunication systems

    Publication Year: 1995, Page(s):1573 - 1579 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    Mobile telecommunications has a real-time database system, named home location register (HLR). The HLR system manages location information of subscribers for mobile telecommunications in a distributed manner. Whenever a mobile subscriber crosses over location areas, update transactions in HLR systems take a unilateral commit action to support fast processing. However, the unilateral commitment can... View full abstract»

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  • Adaptive ARQ/FEC for multitone transmission in wireless networks

    Publication Year: 1995, Page(s):2278 - 2283 vol.3
    Cited by:  Papers (6)  |  Patents (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    This paper describes an automatic repeat request and forward error correction (ARQ/FEC) procedure for multitone data transmission. Multitone data transmission is a candidate for broadband wireless applications. The technique makes use of cyclic redundancy checking (CRC) in both time and frequency. When a block of data is found to be in error, the error is located and corrected by iterative partial... View full abstract»

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  • A framework for distributed Internet service

    Publication Year: 1995, Page(s):1568 - 1572 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (588 KB)

    This paper documents the framework for a hypermedia information service for the Internet called the Petri net object information service (POIS). This Internet service takes into consideration such issues as user interactive concurrent multimedia. It includes a data model, MHPN, for hypermedia applications, a network protocol for client and server communication, and a server and client software arc... View full abstract»

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  • Traffic modeling: matching the power spectrum and distribution

    Publication Year: 1995, Page(s):1701 - 1706 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    This paper examines the validity of the Markovian assumption which is commonly made for modeling of correlated traffic in network analyses. Indeed, real traffic is likely to be nonMarkovian. A fundamental issue in traffic modeling is whether the Markovian assumption has any significance on the queueing solutions. Our study compares the queueing solutions obtained using traffic models with very dif... View full abstract»

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  • Self-similar traffic parameter estimation: a semi-parametric periodogram-based algorithm

    Publication Year: 1995, Page(s):2225 - 2231 vol.3
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    Recent results from packet measurement analysis have shown that packet traffic exhibits fractal properties such as self-similarity (or its concomitant, long-range dependence) which are fundamentally different from features found in circuit switched voice traffic and captured by commonly used packet traffic models such as batch-Poisson and Markov modulated Poisson process (MMPP). These fractal prop... View full abstract»

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  • Design guidelines of parallel concatenated convolutional codes

    Publication Year: 1995, Page(s):2273 - 2277 vol.3
    Cited by:  Papers (4)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    A parallel concatenated convolutional coding scheme consists of two simple constituent systematic convolutional encoders linked by an interleaver. The input bits to the first encoder are scrambled by the interleaver before entering the second encoder. The codeword of the parallel concatenated code consists of the input bits to the first encoder followed by the parity check bits of both encoders. I... View full abstract»

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  • A verification support for communication software design

    Publication Year: 1995, Page(s):1561 - 1567 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    In communication software design, it is important to describe the specification without any errors or ambiguity. For this purpose, several formal description techniques have been proposed to ensure rigorous specifications. In addition, it is necessary to facilitate the generation of highly reliable specification. We propose an integrated support environment, named ITECS (integrated environment for... View full abstract»

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  • Statistical multiplexing and buffer sharing in multimedia high-speed networks: a frequency domain perspective

    Publication Year: 1995, Page(s):1693 - 1700 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (852 KB)

    An essential feature of the ATM-based solution for BISDN is its potential to use the same set of network resources to support a vast variety of user services. We study the effectiveness of statistical multiplexing and buffer sharing under the multimedia high-speed networking environment. We focus on the impact of frequency domain source characteristics on dynamic resource-sharing. By applying a no... View full abstract»

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  • On traffic peakedness and bandwidth relationship with application to wideband traffic engineering

    Publication Year: 1995, Page(s):2220 - 2224 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    We consider a single class wideband traffic (queueing) model: a wideband traffic stream characterized by offered load, peakedness, and a fixed bandwidth requirement is offered to a trunk group. Our objective is to derive a blocking estimate at the trunk group. A fundamental relationship between traffic peakedness and bandwidth requirement is uncovered, i.e., for a wideband traffic stream, there is... View full abstract»

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  • A new digital correlator for bandlimited direct sequence spread spectrum signals

    Publication Year: 1995, Page(s):1894 - 1898 vol.3
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    A new digital correlator for the reception of bandlimited direct sequence (DS) spread spectrum (SS) signals is described. This correlator could be used in CDMA applications. The correlator is simple in its implementation, using a sign-controlled switch instead of the multiplier and a delta-sigma converter with up/down counter as an integrator. This A/D is simple in its realization, and does not re... View full abstract»

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  • The TINA network resource model

    Publication Year: 1995, Page(s):1850 - 1856 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB)

    This paper presents a generic network resource information model defined within the Telecommunication Information Networking Architecture Consortium (TINA-C). It outlines the open distributed processing (ODP) definition of the information viewpoint for network resources and how that model can be applied in the computational viewpoint. The TINA network resource information model represents a techno... View full abstract»

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  • Application of sorted codebook vector quantization to spectral coding of speech

    Publication Year: 1995, Page(s):1595 - 1598 vol.3
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    A new vector quantization method, namely sorted codebook vector quantization (SCVQ) is presented in this article. The paper explains the principles of this method, including training and optimization of the associated codebook. It is shown that this quantizer can be implemented efficiently with almost similar computational complexity to tree-searched vector quantization (TSVQ) and the storage cost... View full abstract»

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  • Recursive systematic convolutional codes and application to parallel concatenation

    Publication Year: 1995, Page(s):2267 - 2272 vol.3
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    This paper deals with a new class of convolutional codes called recursive systematic convolutional (RSC) codes. These codes are very attractive when compared with the best known convolutional codes at low signal to noise ratio (SNR) and high code rate. A comparison with the best known convolutional codes is performed in terms of weight spectrum and bit error rate (BER) on a memoryless Gaussian cha... View full abstract»

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  • B-CDMA overlay forward link and reverse link capacity based on random traffic and a new CDMA call blocking model

    Publication Year: 1995, Page(s):2171 - 2176 vol.3
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    This paper addresses the capacity of the B-CDMA macrocellular overlay system. The B-CDMA overlay method enables cellular systems to provide wireless high speed communications. The novelty in this paper is the introduction of a new CDMA blocking model to calculate the capacity of the B-CDMA overlay system under various AMPS and B-CDMA traffic intensities. Forward and reverse link capacities are bot... View full abstract»

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  • Maintaining switching software viability

    Publication Year: 1995, Page(s):1555 - 1560 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    The need for a continuous flow of new functionality in a switch necessitates an approach of focused restructure-periodic maintenance of limited sections of software. Executing a program of focused restructure has historically been a non-precise undertaking for switching systems. This paper describes an approach for establishing more formal guidelines for identifying switching system software that ... View full abstract»

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  • A multi-level approach to the transport of MPEG-coded video over ATM and some experiments

    Publication Year: 1995, Page(s):1920 - 1924 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    The CCITT (ITU-IT) has decided that the B-ISDN services of the future will be supported by asynchronous transfer mode (ATM), since it can offer the benefits of statistical multiplexing to bursty traffic, thus bringing down costs. There has been a considerable body of research done on the problem of congestion control in ATM networks, and several different approaches have been investigated. A four-... View full abstract»

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  • MASE-an integrated environment for modeling, analysis and engineering of computer/communications systems

    Publication Year: 1995, Page(s):1688 - 1692 vol.3
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    Both simulation and analytic modeling are often employed during the various phases of a system's lifetime e.g. definition, design, development, engineering and operations. A primary objective of such modeling is usually to insure that performance objectives are met in a cost effective manner. Often a variety of simulation and analytic tools are used, but invariably there is no relationship between... View full abstract»

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  • A non-blocking architecture of wavelength division multiplexing photonic switching network

    Publication Year: 1995, Page(s):2215 - 2219 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    This paper studies the non-blocking condition of a proposed photonic switching network which adopts wavelength division multiplexing (WDM). It is a continuation of our previous study in which we developed the non-blocking condition of the generalized parallel delta network (GPDN) proposed for ATM switching. We consider a case where the transmission/switching speed is a discrete integer and reform ... View full abstract»

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  • Parallel acquisition scheme with reference filtering for a DS/SSMA packet radio system

    Publication Year: 1995, Page(s):1889 - 1893 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    This paper evaluated the performance of a non-coherent parallel matched-filter acquisition scheme with a reference filter for a direct-sequence/spread-spectrum multiple access (DS/SSMA) packet radio system. This acquisition scheme employs a reference filter to estimate the variance of the interference at the output of the detecting matched filter. Packet throughput for the parallel MF-RF scheme is... View full abstract»

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  • Design and implementation of TDX-10 management system incorporating TMN concept

    Publication Year: 1995, Page(s):1845 - 1849 vol.3
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    We present an architecture and techniques to manage the TDX-10 switching system based on the ITU-T TMN management model. We extend OSIMIS network management platform to implement generic TMN applications. The hierarchical fault management services/functions are implemented, incorporating the logical layered architecture concept of the TMN management model. The various components of the TDX-10 syst... View full abstract»

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  • A software platform for service operation systems

    Publication Year: 1995, Page(s):1972 - 1976 vol.3
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    A services operations system has been implemented on an OLTP (online transaction processing) platform. This system is based on evolving TMN (telecommunications management network) standards and is designed to manage the various services provided for advanced intelligent networks View full abstract»

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