Proceedings 7th International Conference on Computer Communications and Networks (Cat. No.98EX226)

15-15 Oct. 1998

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  • Author index

    Publication Year: 1998, Page(s):926 - 929
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    Freely Available from IEEE
  • Proceedings 7th International Conference on Computer Communications and Networks (Cat. No.98EX226)

    Publication Year: 1998
    Request permission for commercial reuse | |PDF file iconPDF (540 KB)
    Freely Available from IEEE
  • Wireless LAN: study of hidden-terminal effect and multimedia support

    Publication Year: 1998, Page(s):422 - 431
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1474 KB)

    Wireless local area networks (WLAN) are expected to be a major growth factor for communication networks in the up-coming years. They are expected to provide a transparent connection for mobile hosts to communicate with other mobile hosts, and wired hosts on the wired LAN and broadband networks. Two WLAN projects have undergone the standardization process: the IEEE 802.11 and the ETSI HIPERLAN. Mos... View full abstract»

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  • HAMAC: an adaptive channel access protocol for multimedia wireless networks

    Publication Year: 1998, Page(s):404 - 411
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (734 KB)

    This paper proposes a new medium access control (MAC) protocol for future wireless multimedia personal communication systems, denoted the hybrid and adaptive multiple access control (HAMAC) protocol. The HAMAC protocol integrates fixed assignment TDMA protocols, reservation-based protocols, and contention-based protocols into a single wireless network so as to simultaneously and efficiently suppor... View full abstract»

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  • Improved VC-merging for multiway communications in ATM networks

    Publication Year: 1998, Page(s):4 - 11
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (791 KB)

    The routing and signaling protocols for supporting multipoint-to-multipoint connections in ATM networks have been presented earlier. VP-merge and VC-merge techniques have been proposed as the likely candidates for resolving the sender identification problem associated with these connections. The additional buffer requirements in the VC-merge mechanism and the excessive rise of VPI/VCI space in the... View full abstract»

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  • An access etiquette for very-wide wireless bands

    Publication Year: 1998, Page(s):396 - 403
    Cited by:  Papers (3)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (968 KB)

    We propose and analyze a specific set of access rules, or “spectrum etiquette”, for the 59-64 GHz unlicensed band to allow systems from different manufacturers with different physical and medium-access control protocols to co-exist, sharing the large available bandwidth without interference. The proposed etiquette is unique in that heterogeneous systems are able to co-exist with one an... View full abstract»

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  • Enhance network security with dynamic packet filter

    Publication Year: 1998, Page(s):268 - 275
    Cited by:  Papers (7)  |  Patents (25)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (748 KB)

    This paper presents the study, design and implementation of a firewall, in particular a major component of a firewall: the dynamic packet filter. A packet filter may be static or dynamic. A dynamic packet filter checks, on the fly, the outgoing IP packets from a computer and then allows incoming packets to get through the packet filter if the packets are from the same computer as the outgoing pack... View full abstract»

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  • Actual holding times for calls in a PCS network

    Publication Year: 1998, Page(s):881 - 885
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (495 KB)

    The explicit distribution function of the actual holding time of a new call in a PCS network, with general cell residence time and general requested call holding time, is obtained. The effective call holding time of an incompleted and of completed calls are shown to be the conditional actual holding time of an incompleted call and of a completed call, respectively. If the holding time is of Erlang... View full abstract»

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  • A dynamic congestion avoidance scheme for ATM networks

    Publication Year: 1998, Page(s):238 - 242
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (467 KB)

    In this paper, D-CAPC (dynamic-congestion avoidance using proportional control) scheme is proposed as an extension of the standardized CAPC. In the proposed mechanism, some parameters, which are fixed in CAPC, are tuned dynamically according to the switch load. This task is filled by intelligent agents which are embedded in the switching nodes. Simulation results show that D-CAPC exhibits better p... View full abstract»

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  • Hop reservation multiple access (HRMA) for multichannel packet radio networks

    Publication Year: 1998, Page(s):388 - 395
    Cited by:  Papers (11)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (825 KB)

    A new multichannel MAC protocol called hop reservation multiple access (HRMA) for packet-radio networks is introduced, specified and analyzed. HRMA is based on very-slow frequency-hopping spread spectrum (FHSS) and takes advantage of the time slotting necessary for frequency hopping. HRMA allows a pair of communicating nodes to reserve a frequency hop (channel) using a hop reservation and handshak... View full abstract»

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  • Improving the PIM routing protocol with adaptive switching mechanism between its two sparse sub-modes

    Publication Year: 1998, Page(s):768 - 773
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (552 KB)

    We present an extension of the classical PIM (protocol independent multicast) routing protocol, named PIM SWITCH, that allows PIM to dynamically switch between its shared tree sub-mode and shortest-path tree sub-mode. This extension enables PIM to better adapt to the changing networking environment. PIM SWITCH has been extensively, evaluated using our software tool MCS (multicast simulation) repor... View full abstract»

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  • Efficient scheduling algorithms for real-time service on WDM optical networks

    Publication Year: 1998, Page(s):486 - 493
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (765 KB)

    We study the problem of providing real-time service to hard and soft real-time messages in wavelength division multiplexing (WDM) optical networks. We propose and evaluate a set of scheduling algorithms which schedule message transmissions in single-hop WDM passive star networks based on specific time constraints. We compare the performances of our algorithms with that of the typical WDM schedulin... View full abstract»

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  • Enhancing accuracy of probe packet-based congestion detection in high speed networks

    Publication Year: 1998, Page(s):257 - 266
    Cited by:  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (914 KB)

    A general technique to detect and control congestion status for high speed packet networks is formulated and analyzed. The technique is based on the notion of detection interval, which represents the time to complete a basic congestion detecting interaction between a packet source and destination. The congestion detection consists of having the source send special probe packets during a specified ... View full abstract»

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  • Portable information filtering system: network information servers

    Publication Year: 1998, Page(s):874 - 880
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (746 KB)

    A communications link can only be considered successful when the desired information is delivered to a user of the communications service. In these days of overwhelming digital information broadcast via numerous wide-area networks including the Internet and corporate intranets, the ability of an individual user to obtain relevant, needed information is becoming increasingly difficult. Information ... View full abstract»

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  • Performance analysis and simulation of the SOME-Bus architecture using message passing

    Publication Year: 1998, Page(s):68 - 72
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (610 KB)

    The simultaneous optical multiprocessor exchange bus (SOME-Bus) is a low-latency, high-bandwidth, fiber-optic interconnection network which directly links arbitrary pairs of processor nodes without contention. It contains a dedicated channel (of b bits) for the data output of each node, eliminating the need for global arbitration and providing bandwidth that scales directly with the number of node... View full abstract»

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  • A study on a management interface for VP protection switching

    Publication Year: 1998, Page(s):539 - 546
    Cited by:  Papers (1)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (772 KB)

    With advances in various ATM network services, the ATM network is expected to grow larger and larger. An ATM VP (virtual path) protection switching system and management system will be required to ensure high reliability of this large ATM network. Models of management interfaces are being studied based on a TMN (telecommunications management network). These interfaces are called managed objects. F... View full abstract»

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  • HYDRANET: network support for scaling of large-scale services

    Publication Year: 1998, Page(s):574 - 581
    Cited by:  Papers (1)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (853 KB)

    With the explosive growth of demand for services on the Internet, the networking infrastructure (routers, protocols, servers) is under considerable stress. Mechanisms are needed for current and future IP services to scale in a client-transparent way. We present HYDRANET, an infrastructure that allows to dynamically distribute IP services by placing service agents (caching agents, mirrors, replicas... View full abstract»

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  • An adaptive hybrid technique for video multicast

    Publication Year: 1998, Page(s):227 - 234
    Cited by:  Papers (9)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (776 KB)

    Periodic broadcast and scheduled multicast have been shown to be very effective in reducing the demand on server bandwidth. While periodic broadcast is ideally suited for very popular videos, scheduled multicast is better for less demanded objects. Work has also been done to show that a hybrid of these techniques offers the best performance. Existing hybrid techniques, however, assume that the wor... View full abstract»

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  • On the fly test generation for real time protocols

    Publication Year: 1998, Page(s):378 - 385
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (661 KB)

    Many critical, real-time systems or multimedia systems have time constraints in their specifications. But testing such systems isn't obvious, because the notion of time is not directly under control. A well known problem concerns explosion and complexity related to the computation of behavior graph for real time specifications. This paper introduces a novel approach aimed at avoiding explosion pro... View full abstract»

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  • Window-time-space flow control (WTFC)

    Publication Year: 1998, Page(s):800 - 807
    Cited by:  Papers (2)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (618 KB)

    End to end flow control will be essential for data communications in the near future B-ISDN network, because of its heterogeneous structure. The network is considered a black box from the transmitters point of view, and modeled with G/G/I queuing system. The window bounded D/D/1/W model and window-time (WT) plane are defined using the previous result, that with lowering variance and keeping QoS co... View full abstract»

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  • Performance modeling of high probability call-completion features

    Publication Year: 1998, Page(s):81 - 90
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (687 KB)

    The Government Emergency Telecommunications Service (GETS) provides authorized National Security/Emergency Preparedness (NS/EP) users enhanced public switched network (PSN) service in which GETS calls receive higher likelihood of completion then plain old telephone service (POTS) calls during events of severe network stress. The PSN enhancements have been engineered through a comprehensive process... View full abstract»

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  • New statistical model for VBR video traffic in ATM networks

    Publication Year: 1998, Page(s):448 - 453
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (570 KB)

    We present a new approach to modelling variable bit rate (VBR) coded video sources in asynchronous transfer mode (ATM) networks. Unlike the existing methods which model the number of cells generated by the coder for a sequence of video frames, the new approach improves modelling accuracy by considering the characteristics of different cells generated by the coder, and modelling the number of cells... View full abstract»

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  • A concurrent TTCN based approach to conformance testing of distributed routing protocol OSPF v2

    Publication Year: 1998, Page(s):760 - 767
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (735 KB)

    This paper proposes an formal approach to conformance testing for OSPF v2, a widely used distributed routing protocol in the Internet. The routing function is performed in a distributed system, thus the testing is more complex than the traditional peer-to-peer protocol. The concurrent TTCN is a test notation that can handle concurrent test behavior and it is suitable for the routing function testi... View full abstract»

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  • AFEC: an adaptive forward error correction protocol for end-to-end transport of real-time traffic

    Publication Year: 1998, Page(s):196 - 205
    Cited by:  Papers (20)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (936 KB)

    This paper presents an adaptive protocol for packet-level forward error correction in dynamic networks. The objective is to facilitate end-to-end transport of real-time traffic whose timing constraints rule out the use of retransmission-based congestion control and quality of service (QoS) provision schemes. The degree of redundancy injected into the network is adjusted as a function of the networ... View full abstract»

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  • A flexible architecture for multihop optical networks

    Publication Year: 1998, Page(s):472 - 478
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (580 KB)

    It is desirable to have low diameter logical topologies for multihop lightwave networks. Researchers have investigated regular topologies for such networks. Only a few of these (e.g., GEMNET) are scalable to allow the addition of new nodes to an existing network. Adding new nodes to such networks requires a major change in routing scheme. For example, in a multistar implementation a large number o... View full abstract»

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