IEEE CCECE2002. Canadian Conference on Electrical and Computer Engineering. Conference Proceedings (Cat. No.02CH37373)

12-15 May 2002

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  • IEEE CCECE2002 Canadian Conference on Electrical and Computer Engineering [front matter]

    Publication Year: 2002, Page(s):0_1 - S_45
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  • Author index

    Publication Year: 2002, Page(s):6_1 - 6_12
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  • Keyword Index

    Publication Year: 2002, Page(s):7_1 - 7_12
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  • An analysis of shear horizontal surface acoustic wave propagation under mechanical losses

    Publication Year: 2002, Page(s):1646 - 1651 vol.3
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    In piezoelectric materials, two kinds of losses can be distinguished: mechanical and dielectric. The loss effects are introduced in the Christofell formalism via complex elastic and dielectric coefficients, to evaluate the piezoelectric properties of shear horizontal surface acoustic waves. The surface permittivity concept is used to express the influences of losses on phase velocity, and the elec... View full abstract»

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  • Capacity analysis of WCDMA-based packet data mobile cellular network with rate adaptation

    Publication Year: 2002, Page(s):1231 - 1235 vol.3
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    Rate control is an important way to allocate radio resources when a packet data service is introduced in the CDMA cellular network. It can compensate some shortcomings when the system just uses power control and can improve the system capacity. In this paper, we focus on analysis of the CDMA system capacity when using the rate control method. We do a theoretical analysis and computer simulations o... View full abstract»

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  • Augmenting the capacity of CDMA systems

    Publication Year: 2002, Page(s):1226 - 1230 vol.3
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    Improvement of the capacity of the CDMA (code division multiple access) system is a major objective. The capacity of the system is mainly limited by the signal to noise ratio, where the noise comes from the channel background and from MAI (multiple access interference). Usually, the way to improve the capacity is to decrease the MAI; this is why orthogonal codes are adopted by the IS-95 standard. ... View full abstract»

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  • Unequal power assignment strategy for 3G system and the application in AMR

    Publication Year: 2002, Page(s):1493 - 1498 vol.3
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    An unequal power assignment strategy 3G system is proposed in this paper, which aims to maximize the admission capacity of one cell. Through the analysis of multiple access interference (MAI) for the uplink of the 3G system, a formula to calculate the optimal power ratio for multimedia traffic is deduced. The performance of the novel strategy in a 3GPP-FDD system with integrated speech and data tr... View full abstract»

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  • Iterative packet combining scheme for broadband packet transmission

    Publication Year: 2002, Page(s):1221 - 1225 vol.3
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    An iterative packet combining technique based on the recursive systematic convolutional (RSC) codes, for automatic repeat request (ARQ) scheme is investigated for synchronous multicarrier code division multiple access (MC-CDMA) under a frequency selective fading channel. The multiple turbo decoding principle of Divslaver and Pollara (1995) is used to combine the retransmission packets. The through... View full abstract»

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  • Network architectures for content-based routing

    Publication Year: 2002, Page(s):1487 - 1492 vol.3
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    In this paper we present various network architectures for an intelligent content-based router that examines the data in a packet, and then routes the packet to a destination where it can be most quickly, cheaply, and efficiently processed. Before forwarding packets to their respective destinations, the router uses the data in each packet and the network state to determine a suitable destination a... View full abstract»

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  • On carrier spacing in multicarrier CDMA systems

    Publication Year: 2002, Page(s):1216 - 1220 vol.3
    Cited by:  Papers (4)
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    This paper considers multicarrier CDMA systems where each user's data stream is serial to parallel converted to a number of lower rate streams. Each lower rate stream is then spread by a random spreading code with a suitable chip rate before modulating orthogonal carriers. It is shown that, for a fixed system bandwidth and a given number of carriers, them exists an optimal carrier spacing that min... View full abstract»

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  • Performance evaluation of VBR traffic in InfiniBand

    Publication Year: 2002, Page(s):1532 - 1537 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (461 KB) | HTML iconHTML

    The InfiniBand architecture (IBA) is becoming an industry standard both for communication between processing nodes and I/O devices and for interprocessor communication. It replaces the traditional I/O bus with a switch-based interconnect for connecting processing nodes and I/O devices. It is being developed by the InfiniBandSM Trade Association (IBTA) to provide the levels of reliabilit... View full abstract»

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  • The role of reconciliation in retrieving historical objects in a multi-version object-based system

    Publication Year: 2002, Page(s):1482 - 1486 vol.3
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    Traditional multiversion database environments use data versioning for historical purposes as well as for issues related to transaction management. Multiversioning can increase concurrency and can be used to execute queries against historical records. This paper shows how this technique can be applied in a multiversion object-based environment. View full abstract»

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  • Inter-domain adaptive traffic engineering for IP differentiated services MPLS-based networks

    Publication Year: 2002, Page(s):1527 - 1531 vol.3
    Cited by:  Papers (1)
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    With the dramatic increase of the capacity of the Internet core, it has become an inherently challenging task to provide strict delay bound guarantees to applications such as multimedia, voice over IP, interactive distance learning, and interactive distribution simulations such as those based on distributed interactive virtual environments. The provision of a seamless integration of these applicat... View full abstract»

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  • Hadamard-Craigen error correcting codes

    Publication Year: 2002, Page(s):1288 - 1294 vol.3
    Cited by:  Papers (1)
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    This paper presents a block coding scheme based on a new construction of block-circulant Hadamard matrices. We describe this unified construction of Hadamard matrices of order 2tp where p is any odd number and t≥4 (depends on p), explaining how the block-circulant structure of the matrices contributes to more efficient coding. We introduce HC codes that can be implemented in software... View full abstract»

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  • Supernode-based reverse labeling algorithm: QoS support on mobile ad hoc networks

    Publication Year: 2002, Page(s):1368 - 1373 vol.3
    Cited by:  Papers (4)
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    We present a supernode-based reverse labeling (SRL) algorithm for quality-of-service (QoS) provisioning, specifically bandwidth and delay, in mobile ad hoc networks (MANETs). SRL utilizes a hierarchical structure, which is formed by dynamically electing supernodes through simple algorithms, to perform effective route discovery and local route information management. The SRL QoS routing computation... View full abstract»

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  • Performance improvement of prioritized handoff schemes in multi-service mobile cellular systems

    Publication Year: 2002, Page(s):1347 - 1351 vol.3
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    With the rapid growth in the demand for mobile communications, many works on intense handoff have been done to achieve more efficient use of the scarce spectrum allocated to mobile communication system. In this paper, a new tradeoff scheme based on dual-queue FIFO scheme to improve the system performance is given, which is combined with HCA (hybrid channel assignment) algorithm. In comparison with... View full abstract»

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  • Performance analysis of the PetaWeb optical network architecture

    Publication Year: 2002, Page(s):1477 - 1481 vol.3
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (476 KB) | HTML iconHTML

    The dramatic increase of Internet users and the development of new high volume Internet applications has a profound impact on the design of next generation optical network (NGON) architectures. In order to cope with the immense diversity of applications and traffic volume, highly dynamic optical networks will be needed. Nortel Networks, proposed one kind of NGON architecture, known as PetaWeb. Pet... View full abstract»

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  • Performance evaluation for real-time traffic in differentiated services capable IP network

    Publication Year: 2002, Page(s):1522 - 1526 vol.3
    Cited by:  Papers (1)
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    With the rapid development of network technology, deployment of real-time applications such as video, voice and virtual reality over network become more popular than ever. However, the best effort model, existing over the Internet cannot satisfy the QoS requirements of real-time applications. In order to make Internet quality of service (QoS) capable, the IETF proposed a series of protocols and al... View full abstract»

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  • A nonlinear quantization decision approach for digital communication in channels with impulse noise

    Publication Year: 2002, Page(s):1282 - 1287 vol.3
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    Turbo codes are effective for detection in channels with white Gaussian noise but not with some types of impulse noise because the probability of error becomes time dependent. Then the standard linear Hamming distance between code words is not representative of the error probability. This paper presents an alternative approach that uses the norm distance of the Voronoi partition as a decision func... View full abstract»

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  • A novel method with adaptive multi-service transmission algorithms based on OFDM

    Publication Year: 2002, Page(s):1305 - 1310 vol.3
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (381 KB) | HTML iconHTML

    The resource of frequency becomes more and more limited in wireless communications because the expansion of users and services. In this paper, a novel method is put forward to improve the usage of frequency resource of wireless communications systems under multi-service conditions. Assuming the instantaneous channel gains for one user is known, the method mentioned in the article is based on the O... View full abstract»

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  • Turbo coded OFDM for wireless local area networks

    Publication Year: 2002, Page(s):1363 - 1367 vol.3
    Cited by:  Papers (1)
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    A new block turbo coded-OFDM (BTC-OFDM) system is proposed for wireless local area network (WLAN) applications to provide better performance and more efficiency compared to the IEEE802.11a standard. The proposed scheme uses the same parameters for OFDM as given in IEEE802.11a. This BTC-OFDM utilizes the diversity in both the time and frequency domains to achieve higher performance and more robustn... View full abstract»

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  • Dynamic support of service differentiation in wireless networks

    Publication Year: 2002, Page(s):1325 - 1330 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (506 KB) | HTML iconHTML

    Wireless networks are becoming progressively the access technology of preference to the global Internet, while fast backbone wired networks (mostly optical IP based) will be transporting large volumes of aggregate traffic. This scenario is one of the main visions set for 4th generation wireless networks. However, in order for this vision to become reality, new features need to be introduced in the... View full abstract»

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  • ACAN - Ad hoc Context Aware Network

    Publication Year: 2002, Page(s):1342 - 1346 vol.3
    Cited by:  Papers (6)  |  Patents (8)
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    This paper presents the design and system architecture of the Ad hoc Context Aware Network (ACAN), a wireless environment with no pre-configuration and with spontaneous applications running according to the contextual situation. The ACAN is a new vision to the future of the wireless networks where it will consist of sensors that will capture the entities in the environment and the surrounding user... View full abstract»

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  • Application Layer Routing Options for efficient data transport over the Internet

    Publication Year: 2002, Page(s):1472 - 1476 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (368 KB) | HTML iconHTML

    Most file transfer architectures are based on the conventional client server paradigm with the Internet providing the interconnect infrastructure. In order to avoid/control traffic congestion, the most common scenario is that the server effectively throttles back its transmission when congestion is inferred. In this paper, we propose an alternative mechanism, Application Layer Routing Options (ALR... View full abstract»

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  • Designing and implementing a mobile ad hoc network testbed

    Publication Year: 2002, Page(s):1559 - 1564 vol.3
    Cited by:  Papers (2)
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    This paper describes our experience in designing and implementing a mobile ad hoc network testbed. The design goal is high efficiency with low cost. Each node runs both the unicast routing protocol and the multicast routing protocols on a dynamic-on-demand basis, and interfaces seamlessly with the existing Internet infrastructure. The most important feature of this testbed is that it can generate ... View full abstract»

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