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TENCON '94. IEEE Region 10's Ninth Annual International Conference. Theme: Frontiers of Computer Technology. Proceedings of 1994

22-26 Aug. 1994

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Displaying Results 1 - 25 of 218
  • Theoretical analysis for recursive computation of discrete sinusoidal transforms

    Publication Year: 1994, Page(s):653 - 657 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (305 KB)

    The theoretical basis for the optimal unified architecture that can efficiently compute the discrete cosine, sine, Hartley, Fourier, lapped orthogonal, and complex lapped transforms for a continuous input data stream is proposed. It is shown that any discrete transform whose basis functions satisfy the fundamental recurrence formula has a second order autoregressive structure in its filter realiza... View full abstract»

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  • A simulation study of plant hybridization using L/sup +/-systems

    Publication Year: 1994, Page(s):123 - 127 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (333 KB)

    A novel approach is proposed to extend the L-system formalism to model the hybridization of plant forms. Several algorithms are developed and tested. Pictures illustrating these algorithms are generated by using computer graphics. These preliminary results demonstrate that the proposed new approach deserves further refinements.<> View full abstract»

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  • Proceedings of TENCON'94 - 1994 IEEE Region 10's 9th Annual International Conference on: 'Frontiers of Computer Technology'

    Publication Year: 1994
    Request permission for commercial reuse | PDF file iconPDF (360 KB)
    Freely Available from IEEE
  • Real-Time VirtualClock: a new network traffic control mechanism for real-time communications

    Publication Year: 1994, Page(s):569 - 575 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    A new traffic control discipline is needed for real-time communications: it should generate proper packet orderings and schedule packet transmissions to meet both minimum and maximum delay bounds. Real-time flows must be protected from flows of misbehaved users and from network load fluctuations. Current network traffic mechanisms do not provide both protections. The Real-Time VirtualClock (RTVC) ... View full abstract»

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  • A novel error control scheme for CDMA wireless LANs

    Publication Year: 1994, Page(s):581 - 586 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    A hybrid-ARQ error control protocol for asynchronous code division multiple access (CDMA) local area networks is proposed and its performance is evaluated. Assuming a peer-to-peer type but with a base station for power control, each unit can communicate directly and the near-far effect is eliminated. Packets are convolutionally encoded before modulation. The receiver has a hard-decision decoder us... View full abstract»

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  • A self-steered array system for microwave communications

    Publication Year: 1994, Page(s):587 - 591 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    This paper presents an self-steered algorithm which can be used to correct pointing errors in microwave communications. The algorithm is based on the fact that the output power of an optimized beamformer achieves a local maximum if the steering vector coincides with that of the desired signal, so long as the interferences are outside the mainbeam. By approximating the steering vector by its first ... View full abstract»

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  • Applying the object-oriented approach to the OSI communication protocols

    Publication Year: 1994, Page(s):592 - 596 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    The complexity of the OSI communication protocols and the need for frequent changes cause difficulties when conventional software engineering methods are used to design and implement communication software. This paper describes a general framework for the object-oriented design of communication software based upon the OSI protocols. The general framework captures the common structure and behaviour... View full abstract»

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  • A distributed implementation of parallel backtracking

    Publication Year: 1994, Page(s):733 - 738 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    Presents a set of asynchronous backtrackable communication primitives and their integration into the SLOOP parallel object-oriented logic language. After a brief survey of inter-process communication models in parallel logic languages, we define the set of communication primitives and give a uniform semantics of the extension of Prolog thus obtained. Then we detail an implementation of these primi... View full abstract»

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  • Estimating real-time requirements in multiprocessor systems

    Publication Year: 1994, Page(s):597 - 601 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    The time-cost behaviour of a program depends not only on its resource requirements (e.g. processor time), but also on its execution environment. In this paper, we developed a model of the effect of the execution environment on the time-cost behaviour of a parallel program in a multiprocessor system, incorporating the effects of blocking. We show that one can analytically relate a distributed progr... View full abstract»

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  • Multimedia and multi-party desktop conference system (MERMAID) as groupware platform

    Publication Year: 1994, Page(s):739 - 743 vol.2
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    Describes a multimedia and multi-party desktop conference system called MERMAID (Multimedia Environment for Remote Multiple-Attendee Interactive Decision-making) which was developed as a groupware platform through the effective integration of computer and communication technologies. It allows a group of widely-dispersed users to conduct a meeting from their desktop workstations or personal compute... View full abstract»

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  • Impact of bus arbitration on the schedulability of real-time shared-bus multiprocessors

    Publication Year: 1994, Page(s):602 - 606 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    One of the underestimates in schedulability analysis of bus-based real-time multiprocessors is the impact of the system bus. The system bus is a source of schedulability loss (caused by the bus interference) as well as a shared resource. In this paper, we first identify the factors that impact on the system bus on schedulability as being (a) management of the task priorities at the bus interface a... View full abstract»

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  • Effect of fading in a multihop packet radio network with capture

    Publication Year: 1994, Page(s):702 - 707 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    We study the effect of fading in a contention-limited multihop packet radio network (PRN) with capture. Four transmission strategies based on the Most Forward with Fixed Range (MFR), Nearest with Forward Progress (NFP), Minimal Angular Deviation (MAD), and Angular to Transmission Range Ratio (ARR) routing schemes are studied. Results show that all four transmission strategies perform worse in the ... View full abstract»

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  • Development of a distributed multimedia platform

    Publication Year: 1994, Page(s):744 - 748 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    As part of a research project which is underway, this paper describes the setting for a distributed multimedia platform. We envision that the information systems of the future will be based upon distributed systems and improved ways to store, process, retrieve and transfer information by utilizing text, images, graphics, animation, speech, video and sound. In this paper, we describe the environmen... View full abstract»

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  • Method for acceleration of logic simulations

    Publication Year: 1994, Page(s):828 - 831 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    We present a method for acceleration of logic simulations. The logic simulation is mainly used to detect malfunctions in the logical design phase. As the size of logical circuits grows, acceleration of the logic simulation becomes increasingly required. Several acceleration methods have been presented for this purpose. The outstanding feature of our method is that it accelerates the simulation spe... View full abstract»

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  • Analysis of the effect of size of omega network on its fault tolerance behaviour in presence of multiple faults

    Publication Year: 1994, Page(s):628 - 631 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    The paper deals with comprehensive treatment of the fault tolerant characteristics of a class of nonredundant multistage interconnection network. The observations and results presented are around omega networks, as a representative member of the class of topologically equivalent nonredundant multistage interconnection network. As fault model, the paper considers that the multiple switching element... View full abstract»

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  • A nonuniform sampling delta modulation technique

    Publication Year: 1994, Page(s):708 - 712 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    In this paper, a novel nonuniformly sampling delta modulation (NSDM) technique is investigated; its characteristics and implementation scheme are also described. The results have shown that the technique has the advantages of a higher coding efficiency, and a larger signal-to-noise ratio as compared to that of the conventional DM View full abstract»

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  • An internetworking architecture for integrated voice and data communications

    Publication Year: 1994, Page(s):749 - 753 vol.2
    Cited by:  Papers (2)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (372 KB)

    Recent improvements in the performance of computers together with efficient data compression techniques are envisaged to provide a major impetus for the proliferation of voice and data integration on IEEE 802 LANs. In this paper, we propose a distributed communications network architecture, based on an ATM switch fabric for internetworking IEEE 802.3 and 802.5 LANs. The proposed ATM network would ... View full abstract»

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  • Generation of deadband effect in digital circuits

    Publication Year: 1994, Page(s):1054 - 1056 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB)

    Readily predictable deadband effect or constant-input limit cycles can be generated using a first-order digital circuit subject to magnitude rounding. The bound for the magnitude of deadband and necessary and sufficient conditions for the occurrence or nonoccurrence of specific patterns of deadbands in relation to input values and the multiplier coefficients are given. The results will be useful f... View full abstract»

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  • Automatic recognition of symbols in utility maps

    Publication Year: 1994, Page(s):857 - 861 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    A new algorithm for matching and recognizing test symbols is developed via matching segments which identify the test symbol as one of the nearest prototypes. The measures of similarity between the segment lists involve (i) the total minimum cost and (ii) the Euclidean distance. The proportion of times a test image is correctly matched to the prototype is a measure of the probability of misclassifi... View full abstract»

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  • A high speed distributed file system for multimedia communications

    Publication Year: 1994, Page(s):254 - 258 vol.1
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    Presents the features of HDFS, a High-speed Distributed File System. HDFS aims to provide storage to large files so that the read and write performance for such files does not degrade significantly compared to accesses for small files. One application of HDFS is to provide storage of multimedia files, where such files are expected to be large. The design of HDFS is based on three modules: the Larg... View full abstract»

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  • Representation and description of software documents

    Publication Year: 1994, Page(s):877 - 881 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    A software development environment maintains all the documents produced in the software development process. The representation of the software documents should capture not only the individual documents but also their relationships and structural properties. In this paper, we present an approach to the representation and description of software documents. Syntax trees, structural relations and str... View full abstract»

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  • A compiler for BSP-L, a programming language for the Bulk Synchronous Parallel model

    Publication Year: 1994, Page(s):192 - 196 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    This paper describes a compiler environment for BSP-L, an experimental programming language based on the Bulk Synchronous Parallel model of computation whose goal is to enable the generation of highly efficient, architecture independent software for a wide range of high performance parallel computers View full abstract»

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  • A new matrix solution technique for large-scale circuit simulation on multi-processor system

    Publication Year: 1994, Page(s):832 - 836 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    In this paper a new matrix solution technique is proposed for large-scale circuit simulation. This technique combines direct and iterative relaxation-based methods and is very suitable for parallel processing. In order to make the technique robust or generally applicable, a heuristic method to identify the right couplings and strong feedbacks among the sub-circuits is proposed. The identification ... View full abstract»

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  • A fault tolerant model for a functional language parallel machine

    Publication Year: 1994, Page(s):632 - 636 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    The paper describes a fault tolerant model for a functional language parallel machine. The model is transparent to the user and ensures successful execution of programs in the presence of hardware failure. The model is based on data replication. It takes advantage of the properties of the functional languages. The recovery scheme can be carried out simultaneously on all processors and occurs while... View full abstract»

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  • Pseudo vector processor for high-speed list vector computation with hiding memory access latency

    Publication Year: 1994, Page(s):338 - 342 vol.1
    Cited by:  Papers (2)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    We present two scalar processors called PVP-SWPC and PVP-SWSW for high-speed list vector processing. Memory access latency should be tolerated for this objective. PVP-SWPC tolerates the latency by introducing slide-windowed floating-point registers and prefetch-to-cache instruction. PVP-SWSW tolerates the latency by introducing slide-windowed general and floating-point registers. Owing to the slid... View full abstract»

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