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Local Computer Networks, 1990. Proceedings., 15th Conference on

Date Sept. 30 1990-Oct. 3 1990

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Displaying Results 1 - 25 of 59
  • Signal Shaping for Bit-Interleaved Coded Modulation on the AWGN Channel

    Publication Year: 1990 , Page(s): 1 - 8
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (342 KB)  

    The following topics were dealt with: LANs; integrated services networks; gigabit networks; network performance; internetworking; asynchronous transfer mode (AMT); high performance protocols; FDDI; military/government networks; distributed/real-time networks; and metropolitan area networks View full abstract»

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  • The real world of high speed networking: user interfaces

    Publication Year: 1990 , Page(s): 274 - 284
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (720 KB)  

    High-speed data transfer networks are becoming the norm in new ship system designs. The network interfacing situation in present-day and foreseeable ship designs are described and a method of dealing with the user network interfaces is discussed. This discussion and the recommended solution are illustrated by examples of shipboard data transfer networks implemented by Rockwell International Corpor... View full abstract»

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  • A method for dynamic bandwidth allocation in the FDDI II MAN

    Publication Year: 1990 , Page(s): 18 - 22
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (332 KB)  

    FDDI II, a proposed standard for metropolitan area networks (MANs) that defines a hybrid protocol providing a mode of operation whereby both FDDI token ring operation and isochronous data transfer are integrated onto the same medium, is considered. A modification is presented of the method of dynamic bandwidth allocation for the FDDI II protocol, and its advantages in terms of bandwidth and simpli... View full abstract»

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  • SAFENET-a Navy approach to computer networking

    Publication Year: 1990 , Page(s): 268 - 273
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (420 KB)  

    The SAFENET (survivable adaptable fiber optic embedded network) standards which are being developed for use in US Navy computer-based systems, are described. There are two SAFENET standards. SAFENET I is based on the IEEE 802.5 LAN standard, while SAFENET II is based on the fiber distributed data interface (FDDI). The SAFENET physical topology is based on a dual counter-rotating ring architecture ... View full abstract»

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  • DCP: a fully distributed MAC protocol exploiting the capabilities of polling systems

    Publication Year: 1990 , Page(s): 320 - 326
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (576 KB)  

    A novel media access control (MAC) protocol named distributed-control polling (DCP) is described and analyzed. It has been designed to bring together the most interesting features of distributed-control MAC protocols and centralized token-passing MAC protocols. From the fully distributed MAC protocols, DCP acquires the capability to guarantee both a complete utilization of the medium capacity and ... View full abstract»

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  • Ada-based real-time network environment

    Publication Year: 1990 , Page(s): 327 - 333
    Cited by:  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (532 KB)  

    The design of communications architecture to support Ada-based, real-time, distributed processing systems is described. An implementation of this architecture compatible with the open systems interconnection (OSI) seven-layer reference model is discussed. The foundation Ada real-time network environment (FARNE) is designed and implemented to provide a standard network communications interface to t... View full abstract»

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  • LAN with collision avoidance: switch implementation and simulation study

    Publication Year: 1990 , Page(s): 84 - 92
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (616 KB)  

    Presents a design of a collision avoidance switch for the collision avoidance multiple broadcast (CAMB) tree using transistor-transistor logic (TTL) devices. A simulation study exploring the performance of the broadcast star network in both synchronous and asynchronous operations is also presented. Simulation results show that the slotted broadcast star achieves better performance than the unslott... View full abstract»

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  • An FDDI bridge for the high-speed multimedia backbone LAN

    Publication Year: 1990 , Page(s): 399 - 404
    Cited by:  Papers (2)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (448 KB)  

    An architecture for a high-performance bridge that interconnects the fiber distributed data interface (FDDI) ring and the asynchronous transfer mode (ATM) technology based high-speed multimedia backbone LAN (MBLAN) is proposed. This bridge architecture enables the FDDI bridge to learn the source terminal address efficiently by selecting the error-free cell in which the source terminal address is c... View full abstract»

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  • An evaluation of IEEE 802 protocols and FDDI in real-time distributed systems

    Publication Year: 1990 , Page(s): 334 - 342
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (660 KB)  

    An overview is provided of each of the alternate computer networking standards, specifically the IEEE 802 protocols and fiber distributed data interface (FDDI), which can be used effectively in real-time distributed systems. An analysis is given to provide a comparison of their relative strengths and weaknesses in supporting real-time distributed systems. A model is developed to provide the means ... View full abstract»

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  • Transient performance of a CSMA system under temporary overload conditions

    Publication Year: 1990 , Page(s): 93 - 101
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (336 KB)  

    Effects of impulsive arrivals of packets on the performance of carrier-sense multiple-access (CSMA) protocols are studied. A deterministic dynamic system is proposed to approximate the imbedded Markovian chain model of the CSMA system. Based on this approximation, the probability of overloading of the CSMA system due to impulsive input can be estimated, and the trajectory of the system states can ... View full abstract»

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  • Performance of the Xpress transfer protocol in an Ethernet environment

    Publication Year: 1990 , Page(s): 292 - 300
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (556 KB)  

    A simulation analysis is presented of the performance of the Xpress transfer protocol (XTP), a high-speed protocol intended for fiber distributed data interface (FDDI) or Ethernet environments. The local area network simulation facility (LANSF) is modified to support virtual circuit simulation, and then used to obtain the XTP performance statistics. The chosen simulation LAN environment is Etherne... View full abstract»

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  • Performance evaluation of FDDI

    Publication Year: 1990 , Page(s): 380 - 387
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (336 KB)  

    Using simulation, it is shown that two changes to the fiber distributed data interface (FDDI) protocol suggested by K.C. Sevcik and M.J. Johnson (1987) will simplify the protocol and improve the performance of synchronous traffic by reducing its mean latency. The first change requires that an asynchronous frame must be able to be sent in its entirety in the time remaining before the token rotation... View full abstract»

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  • What the future holds for the local computing network: the next 15 years from a management perspective

    Publication Year: 1990 , Page(s): 2 - 4
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (260 KB)  

    It is argued that over the next 15 years, there should be a quantum increase in the amount of computing power delivered to the user. This paper will be derived from the network to which these devices are connected. While all of this will be of interest to the technologist, there is no focus being given to the application of the power of the local computer network (LCN) to the needs of the users. T... View full abstract»

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  • Practical XNS internetworking at BLS

    Publication Year: 1990 , Page(s): 132 - 136
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (412 KB)  

    Both the positive and negative sides of a 3Com-based Xerox network system (XNS) are illustrated using US Bureau of Labor Statistics (BLS) experience with this type of implementation. A historical perspective of the BLS LAN, the rationale behind using XNS and 3Plus, the topology of the BLS internetwork, and its main design philosophy are discussed. A review of the LAN services that the BLS internet... View full abstract»

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  • ATM adaptation layer protocols and IEEE LAN interconnection

    Publication Year: 1990 , Page(s): 200 - 206
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (556 KB)  

    The asynchronous transfer mode (ATM) adaptation layer provides functions for mapping source traffic into ATM cells as required in recent standardization work for packet switched integrated broadband networks. Functions, services, and protocols suitable for signaling and other packet mode traffic are studied. The resulting protocol stacks are critically examined for two important and differing appl... View full abstract»

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  • Unisys SAFENET data transfer system (layers 1-4)

    Publication Year: 1990 , Page(s): 343 - 350
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (544 KB)  

    The Unisys fiber optic data transfer system (DTS), which is a compatible implementation of the lower four layers of the US Navy SAFENET standard, is described. SAFENET (survivable, adaptable, fiber optic, embedded network) is a real-time information transfer system. It combines standard LAN protocols with widely accepted ISO OSI (open systems interconnection) protocols and a fiber-optic transmissi... View full abstract»

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  • High performance internetworking protocol

    Publication Year: 1990 , Page(s): 172 - 179
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (740 KB)  

    The use of parallelism for protocol processing in a parallel architecture of an internetworking unit is presented. This architecture consists of pipelines and arrays of processors and supports multiple memory concepts (local and global memory). A high-performance parallel implementation of the internetworking protocol in a gateway is discussed, and selected performance results are presented. The r... View full abstract»

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  • Reliable transfer of data in a local area network with multicast distribution

    Publication Year: 1990 , Page(s): 310 - 319
    Cited by:  Papers (3)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (760 KB)  

    Certain distributed computing systems require a single device to transmit identical data sets to two or more devices in a local area network (LAN). This kind of data transmission can be achieved by using either a connection oriented protocol such as transmission control protocol/internet protocol (TCP/IP) or a connectionless protocol. Some of the performance aspects of these two kinds of protocols... View full abstract»

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  • High-speed multimedia backbone LAN architecture based on ATM technology

    Publication Year: 1990 , Page(s): 207 - 212
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (444 KB)  

    A new high-speed multimedia backbone LAN (MBLAN) architecture that efficiently accommodates existing terminals and offers connectivity with public networks in the introduction stage of broadband ISDN (B-ISDN) is presented. A logical 156-Mb/s ring with the standard synchronous optical network (SONET) format is a basic element to realize the proposed high-speed backbone LAN. Several rings are multip... View full abstract»

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  • IR wireless system for ARCNet local area network

    Publication Year: 1990 , Page(s): 183 - 187
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (460 KB)  

    Results obtained with a commercial ARCNet LAN that uses an unguided infrared link as a medium of transmission are presented. The effects of shot noise produced by ambient light on the system receiver are characterized. A lab prototype of this LAN gave satisfactory results. In the sphere of optics, filtering of the ambient light from the working environment is studied. The spectrum characteristics ... View full abstract»

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  • FDDI concentrator design issues

    Publication Year: 1990 , Page(s): 388 - 394
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (440 KB)  

    The fiber distributed data interface (FDDI) standard specifies a robust architecture consisting of four basic types of devices: dual attachment stations (DAS), single attachment stations (SAS), dual attachment concentrators (DAC), and single attachment concentrators (SAC). Many of the prominent issues that face both concentrator designers and their customer, the network designer, are discussed. Th... View full abstract»

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  • LCNs and standards: an uneasy future

    Publication Year: 1990 , Page(s): 14 - 16
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (220 KB)  

    It is argued that the development, use, and success of local computing networks (LCNs) has relied in large part on the legitimacy bestowed on them by standards and the standardization process. However, as LCNs become more and more complex, and begin to be seen as part of a larger computing scheme, there are certain requirements that will be levied upon them by the standards creation world. These r... View full abstract»

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  • Experiences in local networking at USF

    Publication Year: 1990 , Page(s): 137 - 142
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (452 KB)  

    Some of the experiences in networking at the University of South Florida (USF) College of Engineering are described. The LAN selection process and the wiring requirements are outlined. Two networks, the transcendental operating system (TOPS) and the 3Com Ethernet, are reviewed for implementation in this college environment View full abstract»

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  • Service integration in FDDI

    Publication Year: 1990 , Page(s): 23 - 32
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (724 KB)  

    Performance issues of the FDDI-II protocol, an upward-compatible enhancement of the basic fiber distributed data interface (FDDI), are discussed. The main characteristics of the FDDI protocol are examined. The performance of FDDI-II is studied for scenarios including asynchronous traffic, synchronous traffic and isochronous traffic. The results make clear that basic FDDI meets the requirements imp... View full abstract»

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  • A high performance implementation of OSI transport protocol class 4; evaluation and perspectives

    Publication Year: 1990 , Page(s): 223 - 230
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (652 KB)  

    General-purpose protocols such as open systems interconnection (OSI) transport protocol class 4 (TP4) are confronted with new requirements in computer communication. The services proposed become unadapted and performance insufficient. Then appears a new generation of high-speed protocols designed for real-time applications or VLSI implementation. TP4 performance and its modeling for multiprocessor... View full abstract»

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