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Networks (ICN), 2010 Ninth International Conference on

Date 11-16 April 2010

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Displaying Results 1 - 25 of 74
  • [Front cover]

    Publication Year: 2010, Page(s): C1
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  • [Title page i]

    Publication Year: 2010, Page(s): i
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  • [Title page iii]

    Publication Year: 2010, Page(s): iii
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  • [Copyright notice]

    Publication Year: 2010, Page(s): iv
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  • Table of contents

    Publication Year: 2010, Page(s):v - x
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  • Preface

    Publication Year: 2010, Page(s): xi
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  • Committees

    Publication Year: 2010, Page(s):xii - xiv
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  • list-reviewer

    Publication Year: 2010, Page(s):xv - xvii
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  • Designing Multi-layer WDM Networks with Reliability Constraints

    Publication Year: 2010, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (183 KB) | HTML iconHTML

    In this paper, we address the global problem of designing reliable wavelength division multiplexing (WDM) networks including the traffic grooming. This global problem consists in finding the number of optical fibers between each pair of optical nodes, finding the configuration of each node with respect to transponders, finding the virtual topology (i.e., the set of lightpaths), routing the lightpa... View full abstract»

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  • Design and Analysis of a Novel Energy Efficient Ethernet Passive Optical Network

    Publication Year: 2010, Page(s):6 - 9
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (329 KB) | HTML iconHTML

    Ethernet Passive Optical Network (EPON) has become an important access network for realizing FTTX. Due to its broadcast nature in EPON, each Optical Network Unit (ONU) needs to examine every downstream frame delivered from Optical Line Terminal (OLT) to determine whether the frame is destined to it or not. This results in a waste of energy for all ONUs in a PON system. To reduce power consumption,... View full abstract»

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  • Contention Resolution for Optical Switching: Tuning the Channel and Delay Selection Algorithm

    Publication Year: 2010, Page(s):10 - 15
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB) | HTML iconHTML

    Optical packet switching and burst switching provide future-proof alternatives to the current electronic switching in the backbone. To resolve burst (or packet) contention, fiber delay lines are put to use as buffers, as vital part of a channel and delay selection (CDS) algorithm. In case no void-filling is applied, earlier studies pointed out that minimal loss is obtained by selecting delay lines... View full abstract»

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  • Aloha-Type Random Access in Multi-channel Multi-radio Wireless Networks

    Publication Year: 2010, Page(s):16 - 21
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (214 KB) | HTML iconHTML

    Channel assignment has become a very important research area nowadays. In this paper, we study the existence of Nash Equilibria of selfish channel assignment in Aloha-type multi-channel multi-radio (MCMR) wireless networks. Our analysis shows that selfishness leads to balanced channel assignment in a single collision domain, while usually unbalanced solutions in multiple collision domains. We also... View full abstract»

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  • Optimizing Collective Communications on 2D-Mesh and Fat Tree NoC

    Publication Year: 2010, Page(s):22 - 27
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB) | HTML iconHTML

    The paper investigates an impact of direct and combining collective communications models that may be critical for performance of parallel applications. Analysis provided for any given start-up time and message transfer time reveals the fastest collective communication mode in relation to the number of processing elements in 2D meshes and fat tree networks on a chip. View full abstract»

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  • A Case for FPGA Based Accelerated Communication

    Publication Year: 2010, Page(s):28 - 33
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (425 KB) | HTML iconHTML

    The use of Field Programmable Gate Arrays (FPGAs) in the area of High Performance Computing (HPC) to accelerate computations is well known. We present here a case where FPGAs can be used to speed up communication instead of computation. Current interconnects for HPC are in particular missing support for fine grain communication, which is increasingly found in various applications. In order to over... View full abstract»

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  • F-TCP: A Delay-Based Protocol with Fair Co-existence

    Publication Year: 2010, Page(s):34 - 41
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (395 KB) | HTML iconHTML

    Various studies have shown that regular TCP is inefficient in high-speed networks. This paper proposes F-TCP, a delay-based TCP variant, which is able to operate efficiently in high-speed networks. The slowstart phase of F-TCP continues until a threshold determined from probing the available bandwidth. When competing with loss-based flows F-TCP reduces it's window to a value derived from the avail... View full abstract»

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  • Automatic Realignment of Data Structures to Improve MPI Performance

    Publication Year: 2010, Page(s):42 - 47
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (611 KB) | HTML iconHTML

    Programs that use the Message Passing Interface (MPI) standard to communicate with other processes often use MPI data structures that are modeled after native data structures. In some cases, a subset of the fields in the native data structure do not need to be transmitted. Users will sometimes explicitly omit those fields in the MPI data structure but align the MPI data structure to match the logi... View full abstract»

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  • Rendering Intelligence at Physical Layer for Smart Addressing and Multiple Access

    Publication Year: 2010, Page(s):48 - 54
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB) | HTML iconHTML

    The primary objective of this work is to propose a technique of wireless communication, where we render intelligence to the physical layer. We aim to realize a physical layer that can take part in some processes which is otherwise confined to higher layer signalling activities, like for example addressing of a node. For a typical closed user group type of network, we propose a multiple access mech... View full abstract»

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  • Channel Estimation and Detection for Single-Carrier and Multi-carrier Systems

    Publication Year: 2010, Page(s):55 - 60
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (235 KB) | HTML iconHTML

    In this paper, we develop robust estimation and detection schemes that explicitly account for channel and covariance matrix estimation errors by optimizing the worst-case performance over properly selected bounded uncertainty sets. We show that it is beneficial to refine the channel and covariance matrix estimates over properly chosen bounded uncertainty sets centered on the prior channel and cova... View full abstract»

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  • Performance Analysis of Parallel Signal Processing Algorithms in Audio Mixing Systems

    Publication Year: 2010, Page(s):61 - 64
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB) | HTML iconHTML

    Algorithms for real-time parallel processing of an audio signal in large-scale digital audio distribution networks, implemented on personal computer platform, are compared in this paper from the performance point of view. In such systems, the summing and multiplication of audio signal take up a significant portion of the processing power of the system. Therefore, there is a tendency to decrease it... View full abstract»

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  • CTC Turbo Decoding Architecture for H-ARQ Capable WiMAX Systems Implemented on FPGA

    Publication Year: 2010, Page(s):65 - 70
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB) | HTML iconHTML

    This paper presents the results of a hybrid automatic request (H-ARQ) capable, convolutional turbo decoder implementation on field programmable gate array (FPGA). It emphasizes area, speed, and the decoding performances when using fixed point implementation. The convolutional turbo coding scheme is the one specified in the 802.16e-2005 standard. The code data rates are 1/2, 2/3, and 3/4, the maxim... View full abstract»

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  • Synchronized Blitz: A Lower Bound on the Forwarding Rate of Fully Meshed Traffic in Packet Switches

    Publication Year: 2010, Page(s):71 - 76
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (317 KB) | HTML iconHTML

    The precision of clock oscillators used in packet-based network devices is typically low. Thus, multiple nodes in a packet network, driven by different oscillators may transmit at slightly different port speeds, which may result in significant performance issues. In this paper, we show some of the performance issues that may be caused by clock wander. We use the well known benchmark of fully meshe... View full abstract»

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  • Impact of Control Channel Limitations on the LTE VoIP Capacity

    Publication Year: 2010, Page(s):77 - 82
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (150 KB) | HTML iconHTML

    In this paper, we present a fully dynamic simulative analysis of the Downlink (DL) Voice-over-IP (VoIP) performance in 3G Long Term Evolution (LTE) with both Uplink (UL) and DL control channel constraints. In UL the Physical Uplink Control Channel (PUCCH) capacity affects the Channel Quality Indicator (CQI) resolution and in DL the Physical Downlink Control Channel (PDCCH) capacity has an impact t... View full abstract»

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  • EMule Simulator: A Practical Way to Study the eMule System

    Publication Year: 2010, Page(s):83 - 88
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (281 KB) | HTML iconHTML

    Simulation is an effective way to study P2P systems. But for the popular file sharing software eMule, there is no eMule simulator to date. In this paper, we release the first eMule simulator, which simulates the internal mechanisms of the eMule software, such as requesting source list from server, publishing shared file list to server, connecting to other clients and requesting for uploading, cred... View full abstract»

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  • Voice Quality in VoIP Networks Based on Random Neural Networks

    Publication Year: 2010, Page(s):89 - 92
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB) | HTML iconHTML

    The growth of Internet has led to the development of many new applications and technologies. Voice over Internet Protocol (VoIP) is one of the fastest growing applications. Calculating the quality of calls has been a complex task. The ITU E-Model gives a framework to measure quality of VoIP calls but the MOS element is a subjective measure. In this paper, we discuss a novel method using Random Neu... View full abstract»

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  • Towards a Stable AQM via Dropping Function Shaping

    Publication Year: 2010, Page(s):93 - 97
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (170 KB) | HTML iconHTML

    In this paper, we study the stability of the queue size in an AQM router that drops incoming packets with probability that is a function of the queue size. Using the newest analytical results we find the shape of the dropping function that is optimal in terms of minimization of the variance of the queue length. View full abstract»

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