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
  • 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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  • A novel approach to output process characterization for token ring networks supporting priorities

    Publication Year: 1993, Page(s):484 - 492
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (604 KB)

    A LAN environment in which two token rings are interconnected via remote bridges is considered. Traffic streams of two priority classes are supported. An approach is presented to characterize the output process of one token ring with a bridge node, using a three-phase Markov modulated Poisson process. Numerical results indicate that this approximate process can be much more accurate than the Poiss... View full abstract»

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  • Rotation counter protocol - A token-ring protocol for integrated services

    Publication Year: 1993, Page(s):474 - 481
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (500 KB)

    A protocol for use in fiber optic rings is proposed. The rotation counter protocol (RCP) is a token-ring protocol which includes a counter in the token. The counter counts down on the number of packets accessing the network per cycle, and it is shared and modified by each station. Synchronous traffic is allowed to access the network as the token visits each station, while asynchronous traffic is a... View full abstract»

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  • 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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  • Language support for flexible, application-tailored protocol configuration

    Publication Year: 1993, Page(s):369 - 378
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1232 KB)

    A framework containing a number of resources, languages, and tools for generating customized protocols that support diverse multimedia applications running on high-performance networks is described. The framework facilitates the configuration of application-tailored, function-based communication protocols that are automatically synthesized from high-level specifications View full abstract»

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  • Design and analysis of a hierarchical and modular local ATM switch

    Publication Year: 1993, Page(s):44 - 51
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (644 KB)

    A hierarchical and modular local asynchronous transfer mode (ATM) switch is proposed. In order to improve queuing performance, the output queuing technique is adopted and several outputs are allowed to partially share the same output buffer space. The performance of the proposed switch is evaluated under uniform and nonuniform traffic patterns. Comparisons with the knockout switch, the recursive s... 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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  • An application-driven approach to networked multimedia systems

    Publication Year: 1993, Page(s):361 - 368
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (560 KB)

    Several architectural choices possible in logical multiplexing, accommodating QoS dynamics, and functional divisions between senders and receivers are discussed. The authors' application requirements favor integration rather than channelization, supporting quality of service (QoS) dynamics with a renegotiation mechanism, and pushing complexity towards receivers. The choices are tested via implemen... View full abstract»

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  • Bandwidth allocation in FDDI-II for isochronous, synchronous and asynchronous traffic

    Publication Year: 1993, Page(s):196 - 204
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (556 KB)

    Fiber distributed data interface-II (FDDI-II) is a high speed LAN for integrated services applications, supporting isochronous, synchronous, and asynchronous traffic. The performance of FDDI-II in handling multiple classes of traffic is examined. The network can be tuned to meet the requirements of isochronous, synchronous, and asychronous traffic using the wideband channels (WBCs), synchronous al... View full abstract»

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  • Slotted Aloha protocols for high-speed optical fiber local area networks using WDM passive star topology

    Publication Year: 1993, Page(s):284 - 290
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (572 KB)

    Five protocols based on slotted Aloha are proposed for very high-speed optical fiber local area networks using wavelength division multiplexing passive star topology. Each station is equipped with a tunable optical transmitter for data channels, a fixed optical transmitter tuned at a separate control channel, a tunable optical receiver and a fixed optical receiver. To obtain high success probabili... 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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  • Using the common LAN to introduce ATM connectivity

    Publication Year: 1993, Page(s):34 - 43
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (872 KB)

    A method for using LAN technologies to transport asynchronous transfer mode (ATM) cells is outlined. B-ISDN service requirements are broken into three groups, i.e., high speed media, multimedia interfaces, and service control software. Compression techniques for bandwidth intensive services are discussed. It is argued that these services may be provided using sub-Mb/s ATM links. The ATM concept is... 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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  • A dual network architecture for high-performance distributed computing environments

    Publication Year: 1993, Page(s):354 - 360
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (608 KB)

    The traffic characteristics and the communications requirements of two widely used distributed computing environments are explored, i.e., X Window System and Network File System (NFS). The concept of a dual network architecture is introduced to improve the network quality of services provided to distributed applications utilizing the X Window System and NFS 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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  • Efficient embedding of a hypercube in an irregular WDM network

    Publication Year: 1993, Page(s):274 - 283
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (988 KB)

    A heuristic algorithm is presented for efficiently embedding a virtual hypercube into an irregular wavelength division multiplexing (WDM) network so that the message propagation delay is minimized. Embedding a hypercube allows the communications of the many hypercube-base algorithms to map directly to the virtual network. The authors' algorithm optimizes the embedding by effective assignment of vi... 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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  • On the effectiveness of priorities in token ring for multimedia traffic

    Publication Year: 1993, Page(s):25 - 31
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (608 KB)

    The suitability of IEEE 802.5 token ring LANs for the transport of multimedia traffic is examined. The token ring priority mechanisms and end-station queuing policies are studied in order to understand their effect on the delay characteristics of multimedia traffic. The multimedia traffic is modeled as isochronous data streams. Simulation results are presented to illustrate the access and queuing ... View full abstract»

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  • Implementation of a security system in a local area network environment

    Publication Year: 1993, Page(s):230 - 236
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (624 KB)

    The development and the implementation of a security system in a local area network environment are presented. This system is based on an extended Ethernet network, but the methodology used is transferable to different kinds of LCNs and even metropolitan area networks (MANs), with some easy modifications. The adopted solution fulfills all the requirements that must fulfill any security protocol si... 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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  • Guaranteeing synchronous messages with arbitrary deadline constraints in an FDDI network

    Publication Year: 1993, Page(s):186 - 195
    Cited by:  Papers (25)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (932 KB)

    Issues related to guaranteeing synchronous messages with arbitrary deadline constraints in a fiber distributed data interface (FDDI) network are addressed. It is shown that several network parameters must be set carefully if message deadlines are to be satisfied. Message deadlines can only be met if sufficient synchronous bandwidth is allocated to each mode. Thus, proper synchronous bandwidth allo... 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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  • Using camp-on to improve the performance of a Fibre Channel switch

    Publication Year: 1993, Page(s):247 - 255
    Cited by:  Papers (1)  |  Patents (34)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (848 KB)

    A method is presented to improve the performance of the High-Performance Switching System (HPSS), a distributed switching system being designed for use in the campus-wide high-speed network prototype at the Lawrence Livermore National Laboratory. The HPSS uses protocols of the proposed ANSI Fibre Channel Standard (FCS). The system is based on a folded version of the Clos three-stage network, and i... View full abstract»

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