1993 18th Conference on Local Computer Networks

19-22 Sept. 1993

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  • 1993 18th Conference on Local Computer Networks

    Publication Year: 1993
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    Freely Available from IEEE
  • Author index

    Publication Year: 1993, Page(s):523 - 524
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    Freely Available from IEEE
  • A self-organizing wireless LAN system

    Publication Year: 1993, Page(s):467 - 473
    Cited by:  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    A self-organizing method of a decentralized LAN is proposed, its characteristics are evaluated by computer simulation based on a simple network model. It is found that this decentralized network self-organizing method can be adopted to established wireless LAN systems by adding a few functions. This method is extremely simple and the functions which each station must have are very few View full abstract»

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  • Dynamic congestion control schemes in high-speed multimedia networks

    Publication Year: 1993, Page(s):81 - 90
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (780 KB)

    Dynamic congestion control strategies for supporting real-time multimedia applications in high-speed integrated asynchronous transfer mode (ATM) networks are considered. Several traffic types including voice, video and multimedia data are expected to co-exist in future broadband integrated services digital network (B-ISDN). They are classified according to their distinct needs based on bandwidth, ... View full abstract»

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  • Equalizer for an IR-wireless LAN using RBF neural networks

    Publication Year: 1993, Page(s):461 - 466
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    The application of a RBF (radial basis function) neural network to an adaptive equalizer at the receiver of a wireless IR-LAN is considered. Fixing the decision threshold and classifying the received binary signals are the main functions of the RBF. The general problem of equalization binary signals, passed through a dispersive channel and corrupted with noise, is briefly described. The characteri... View full abstract»

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  • Group communication protocol for large group

    Publication Year: 1993, Page(s):310 - 319
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (740 KB)

    The authors discuss how to provide reliable group communication for a large number of entities interconnected by a high-speed one-channel network. A group of entities is partitioned into disjoint subgroups, named component clusters, interconnected by gateways, in order to reduce the processing time and data unit length. The communication protocol is executed in each component cluster, and the gate... View full abstract»

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  • Analysis of a link layer protocol for high speed data bus

    Publication Year: 1993, Page(s):432 - 439
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    A parallel data bus based on the slotted ring idea with destination release policy is proposed and analyzed. Analytical results are compared to simulations and actual measurements carried out in a test network with a 200-Mb/s data rate. Transfer delays are calculated by mathematical analysis and computer simulation for networks with five and eight nodes with Poisson distributed load. Two different... View full abstract»

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  • How the Bernoulli slot occupancy approximation in the node DQDB analytical model influences the throughput-delay performance

    Publication Year: 1993, Page(s):120 - 129
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    The effect of the Bernoulli slot occupancy approximation, which is assumed in most distributed queue dual bus (DQDB) analytical models, on the throughput-delay characteristics of DQDB networks is studied. Studies cover a variety of traffic statistics and network configurations. The results reveal that the influences of the Bernoulli slot occupancy approximation are message length, internode distan... View full abstract»

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  • Integrated bandwidth and congestion management in ATM networks using a simple learning algorithm and a bucket bank

    Publication Year: 1993, Page(s):388 - 396
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    A simple learning-algorithm-based method for dynamically sharing a pool of bandwidth (BW) by multiple categories of traffic in asynchronous transfer mode (ATM) networks is proposed. For constant bit rate (CBR)-type traffic, only the maximum of the consumable BW is defined, whereas for the other categories, a minimum portion of the BW is guaranteed when they are sufficiently active. The remaining p... View full abstract»

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  • Distance learning and ATM: A trial at the University of Minnesota

    Publication Year: 1993, Page(s):77 - 80
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    A distance learning environment is created which links three remote locations via asynchronous transfer mode (ATM). Continuous bit rate audio and video, variable bit rate image data, and low bit rate background control information are handled simultaneously by high speed ATM links and a set of interconnected ATM central office switches. Digital image servers and display devices are interconnected ... View full abstract»

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  • Performance evaluation of wireless LANs in the indoor environment

    Publication Year: 1993, Page(s):452 - 460
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    The results of a performance evaluation of a wireless LAN (WLLAN) in an indoor environment are presented. The LAN operates in the ISM bands using spread spectrum technology. Hardware specific parameters such as bit error rate vs. signal to noise ratio (BER vs. SNR), maximum transmission rate, and platform software overhead are measured experimentally for a single node. These empirical data, in com... View full abstract»

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  • Improved non-real-time communication in FDDI networks with real-time traffic

    Publication Year: 1993, Page(s):157 - 166
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (832 KB)

    The fiber distributed data interface (FDDI) is suitable for real-time communication. A scheme for reducing the response time of non-real-time messages while still providing the same quality of service to real-time messages is proposed. In the proposed approach, non-real-time messages are transmitted ahead of real-time messages unless it is absolutely necessary to transmit real-time messages first ... View full abstract»

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  • Analysis of fairness on the Metaring gigabit/s network

    Publication Year: 1993, Page(s):300 - 307
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    The Metaring High speed local area network (HSLAN) is based on a full-duplex slotted ring using spatial reuse, which allows throughputs several times higher than the medium capacity. The Metaring access protocol includes a simple and reliable global fairness mechanism which prevents a station from any starvation. By means of simulations, the fairness of the Metaring gigabit/s network is analyzed. ... View full abstract»

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  • Error control in the Xpress transfer protocol

    Publication Year: 1993, Page(s):423 - 431
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    The error-control mechanisms used in the Xpress transfer protocol (XTP) are presented. Policies for the use of these mechanisms are proposed and simulated. A potential failure mode on contention-oriented media under high utilization is identified, and two proposals are made to prevent its occurrence. It is found that even for bit error rates as high as 10-5, the loss in performance is o... View full abstract»

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  • Algorithms on dynamic priority scheduling for heterogeneous traffic in ATM

    Publication Year: 1993, Page(s):380 - 387
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    Double minimum laxity threshold (MLT), double queue length threshold (QLT), and hysteresis QLT algorithms are proposed as dynamic priority scheduling techniques for advanced processing of multiple class traffic. The performance of the proposed algorithm is analyzed by computer simulation. According to the simulation results, it can be shown that the proposed algorithms enhance the processing perfo... View full abstract»

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  • Experience with the VuNet: A network architecture for a distributed multimedia system

    Publication Year: 1993, Page(s):70 - 76
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    The VuNet is a gigabit-per-second desk/local-area asynchronous transfer mode (ATM) network built in the context of the ViewStation distributed multimedia project. The ViewStation system takes a software-intensive approach to multimedia where real-time data are processed at the application level and not in specialized hardware. The VuNet hardware is specifically designed to support this software mo... View full abstract»

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  • A new error control scheme for packetized voice over high-speed local area networks

    Publication Year: 1993, Page(s):91 - 100
    Cited by:  Papers (10)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (860 KB)

    A new, unified approach towards the delay and error constraints that influence the quality of a digitized voice over asynchronous local computer networks is proposed. This approach, called Slack automatic repeat request (ARQ) (S-ARQ), proposes an extension of the control time mechanism for jitter control in order to provide error recovery through retransmissions in the case of packet losses in the... View full abstract»

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  • A load balancing multicast tree approach for group-based multimedia applications

    Publication Year: 1993, Page(s):327 - 336
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (808 KB)

    The authors formulate and propose an algorithm for the LBMT (load-balancing multicast tree) problem whose main objective is to accomplish traffic load balance while minimizing the number of multicast trees for a group. In order to fulfill these objectives, the multiple multicast tree concept, whose only disadvantage is the high tree maintenance cost, is introduced. Since the tree maintenance cost ... View full abstract»

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  • MAN/WAN integration-The ATM-to-DQDB case

    Publication Year: 1993, Page(s):102 - 109
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (676 KB)

    The interworking modes for the interconnection of metropolitan area networks (MANs) and asynchronous transfer mode (ATM)-based broadband-integrated services digital network (ISDN) are studied. The modes considered are “cell-to-slot interworking” and “frame interworking.” The cell-to-slot mode modifies ATM cells to distributed queue dual bus (DQDB) slots and vice versa. The ... View full abstract»

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  • Interfacing a high performance disk array file server to a gigabit LAN

    Publication Year: 1993, Page(s):344 - 353
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (860 KB)

    The design and implementation of the network architecture (hardware, software, and protocols) of the RAID-II system are described. RAID-II is a high-speed file server connected to an UltraNetwork. To support high bandwidth network transfers with the RAID-II server, the networking software is divided among the various processors in the system. With the distributed software, the CPU still limits the... View full abstract»

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  • FDDI-2 packet services and latency adjustment buffers

    Publication Year: 1993, Page(s):176 - 185
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    FDDI-2 is an extension of the fiber distributed data interface (FDDI) standards that integrates isochronous circuit switched services with the timed token protocol packet services of FDDI. An expression is derived to describe the effects of hybrid mode operation on the packet channel token rotation time, which is dependent on the maximum isochronous transmission rate. The management of packet data... View full abstract»

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  • Configuration and performance issues in the MetaNet design

    Publication Year: 1993, Page(s):291 - 299
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (820 KB)

    Various virtual embedding configurations for the MetaNet architecture are examined. The suggested embedding structures are compared and contrasted, and design parameters and their trade-off are identified. Fairness is used as a mechanism to ensure that the network internally will not be overloaded. Therefore, packets can be sent from source to destination on a route which is close to the shortest ... View full abstract»

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  • Performance study of a high performance information/control frame multiplexer

    Publication Year: 1993, Page(s):493 - 502
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    The performance of a control (CNTR) and information (INF) frame multiplexer which intermixes control and information traffic by accommodating the relatively short CNTR frames between two consecutive INF frames is investigated. It is shown that the delay performance of one class can be improved at the price of degrading the performance of the other. The delay performance of a transaction between tw... View full abstract»

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  • Performance evaluation of an off-host communications architecture

    Publication Year: 1993, Page(s):414 - 422
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (740 KB)

    The Computer Networks Laboratory at the University of Virginia has implemented the SAFENET lightweight protocol suite on the Navy's Desktop Tactical Computer (DTC-2). One of the research questions was whether to embed XTP in the DTC-2's UNIX kernel or run XTP on an attached processor on the DTC-2's VMEbus. Both strategies were implemented and the attached processor approach proved to have somewhat... View full abstract»

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  • Performance analysis of voice and video services in isochronous LANs and systems

    Publication Year: 1993, Page(s):17 - 24
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    The performance of voice and video services is evaluated for isochronous LANs or systems that have time division multiplexing (TDM) channels with fixed bandwidth for real-time traffic. The isochronous bandwidth resources are shared by voice and video traffic which have different bandwidth requirements. The blocking probabilities for voice and video arrivals are obtained analytically for the case w... View full abstract»

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