Search Results:　 1-20 of 105

  • 1

    Performance Analysis of Multi-Traffic Networks Using Controlled Available Bit Rates

    YUE Dequan , YUE Wuyi , ZHANG Huachen , TU Fengsheng

    … In this paper, we consider a multi-traffic network system with a transmission link shared by Available Bit Rate (ABR) and Variable Bit Rate (VBR) applications. … We propose a new feedback control method to control the flow of the ABR traffic. …

    IEICE technical report 105(357), 1-4, 2005-10-13

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  • 2

    An Adaptive Control Design for ABR Service in ATM Networks(Network Management/Operation)

    NGUYEN Thang Viet , MORI Takehiro , MORI Yoshihiro , KUROE Yasuaki

    … This paper presents an adaptive control design for the ABR traffic congestion control in ATM networks. … Firstly, we consider a control-based mathematical model to the ABR traffic congestion control problem. … Then the feedback pole placement control design is applied to the ATM ABR traffic congestion control problem for the case of known delays. …

    IEICE transactions on communications E88-B(7), 2896-2907, 2005-07-01

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  • 3

    Available Bit Rate Traffic Engineering in MPLS Networks with Flow-Based Multipath Routing(Network)

    AKAR Nail , HOKELEK Ibrahim , KARASAN Ezhan

    … In this paper, we propose a novel traffic engineering architecture for IP networks with MPLS backbones. … Inspired by the ABR flow control mechanism in ATM networks, we propose to split traffic between a source-destination pair between the primary and secondary paths using explicit rate feedback from the network. …

    IEICE transactions on communications E87-B(10), 2913-2921, 2004-10-01

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  • 4

    Variable Inner Speed Type Capacity Control Method for Delay Reduction  [in Japanese]

    Okajima Tsuneo , Kitami Tokuhiro

    … 本研究では、ABRサービスのトラヒックパラメータ(ピークセルレート,ミニマムセルレート)に整合する制御方式になるように転送速度の上下限値を設定している。 …

    IEICE technical report. Communication systems 103(721), 59-64, 2004-03-09

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  • 5

    Variable Inner Speed Type Capacity Control Method for Delay Reduction  [in Japanese]

    Okajima Tsuneo , Kitami Tokuhiro

    … 本研究では、ABRサービスのトラヒックパラメータ(ピークセルレート,ミニマムセルレート)に整合する制御方式になるように転送速度の上下限値を設定している。 …

    Technical report of IEICE. DSP 103(719), 59-64, 2004-03-09

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  • 6

    Variable Inner Speed Type Capacity Control Method for Delay Reduction  [in Japanese]

    Okajima Tsuneo , Kitami Tokuhiro

    … 本研究では、ABRサービスのトラヒックパラメータ(ピークセルレート,ミニマムセルレート)に整合する制御方式になるように転送速度の上下限値を設定している。 …

    IEICE technical report. Circuits and systems 103(717), 59-64, 2004-03-09

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  • 7

    Usefulness of Otoacoustic Emissions in Diagnosis of Pseudohypacusis with Organic Hearing Loss; A Report of Two Cases  [in Japanese]

    SAKASHITA Tetsushi , SHIBATA Toshiyuki , YAMANE Hideo , HASHIMOTO Chitoe

    … Since the wave V thresholds of auditory brainstem response (ABR) were 70 and 20dBnHL in the right and left ear, respectively, it was suspected that she had moderate hearing loss in the right ear and normal hearing sensitivity in the left ear. …

    Practica Oto-Rhino-Laryngologica 97(2), 105-112, 2004-02-01

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  • 8

    Analysis and Design of a Stable Congestion Avoidance Algorithm for ABR Service in ATM Networks

    JARUVITAYAKOVIT Tanun , RANGSLNOPPAMAS Naris , PRAPINMONGKOLKARN Prasit

    … This paper proposes a stable rate allocation algorithm for ABR service in ATM networks. … The additional design criteria include the ability to enhance a large number of ABR connections and staggered TCP connections as well as to perform an accurate traffic averaging. …

    IEICE transactions on communications E85-B(9), 1714-1730, 2002-09-01

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  • 9

    Fuzzy Explicit Rate (FUER) Switch Mechanism for ABR Traffic Congestion Control in ATM Networks

    CHIN YoonTze , DIMYATI Kaharudin , HANDA Shiro , OSHITA Shinjiro

    … This paper presents a refined model for the fuzzy logic implementation of an available bit rate (ABR) flow control switch. … FUER switch mechanism is designed to effectively perform congestion control on ABR traffic in asynchronous transfer mode (ATM) networks. …

    IEICE transactions on communications E85-B(6), 1124-1132, 2002-06-01

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  • 10

    Dynamic Bandwidth Assignment for Wireless ATM  [in Japanese]

    Riwu JIN , YAMAGUTI Takahiro , SUGAWARA Sinji , MIKI Tetsuya

    … 無線ATMネットワークにおいて,有線系と同等なマルチメディアサービスをサポートするためには,限られた無線リソースを効率的に利用する必要がある.ATMの基本サービスカテゴリであるCBR,VBR,ABR,UBRの中で,特にリアルタイム性に厳しい可変速度型VBRへの帯域割り当てが重要な研究課題となる.本研究では,TDMA/TDDアクセス方式をベースとし,VBRのトラヒック特性およびUPCパラメータを用いての動的帯域割り当てフルゴリズムを提 …

    Technical report of IEICE. RCS 102(22), 55-60, 2002-04-12

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  • 11

    Dynamic Bandwidth Assignment for Wireless ATM  [in Japanese]

    Riwu JIN , YAMAGUTI Takahiro , SUGAWARA Sinji , MIKI Tetsuya

    … 無線ATMネットワークにおいて,有線系と同等なマルチメディアサービスをサポートするためには,限られた無線リソースを効率的に利用する必要がある.ATMの基本サービスカテゴリであるCBR,VBR,ABR,UBRの中で,特にリアルタイム性に厳しい可変速度型VBRへの帯域割り当てが重要な研究課題となる.本研究では,TDMA/TDDアクセス方式をベースとし,VBRのトラヒック特性およびUPCパラメータを用いての動的帯域割り当てアルゴリズムを提 …

    Technical report of IEICE. CQ 102(24), 55-60, 2002-04-12

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  • 12

    PID Congestion Control in ATM with Propagation Delay

    KUBO Seiji , USHIO Toshimitsu , MURATA Masayuki , OHSAKI Hiroyuki

    … In this paper, we consider available bit rate (ABR) congestion control in ATM. … In the ABR service in ATM, each source changes a traffic rate according to network conditions. … We assume that ATM switches determine the traffic rate based on the difference between a buffer state and a specified threshold, and convey it to sources through ER fields of RM cells. …

    IEICE transactions on communications E85-B(3), 703, 2002-03-01

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  • 13

    Consolidation Algorithm Based on Adaptive Dynamic Threshold for Point-to-Multipoint Connections in ATM Networks

    CHO Kwang-Hyun , SHIN Soung-Wook

    … The major concern at a branch point in asynchronous transfer mode (ATM) networks for point-to-multipoint available bit rate (ABR) services is how to consolidate backward resource management (BRM) cells from each branch for a multicast connection. … The main idea of the ADT algorithm is that each branch point estimates the ABR traffic condition of the network through virtual queue estimation. …

    IEICE transactions on communications E85-B(3), 686-688, 2002-03-01

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  • 14

    APIs for Flow Control and Their Applications(Special Issue on Network Software)

    KOIKE Arata

    … An ATM layer service category, Available Bit Rate(ABR), was specified at the ATM Forum in 1996. … ABR is intended to meet the requirements of non-real-time applications that assume best effort data transportation. … We proposed Application Program Interfaces(APIs)for ABR that allow applications to use ABR capability directly. … In this paper, we describe the background and necessity of ABR APIs and explain the primitives for them in detail. …

    IEICE transactions on communications E84-B(12), 3173-3180, 2001-12-01

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  • 15

    Quality-of-Service Based Link Control Scheme for Wireless Integrated Service Communications

    CHEN Hung-Yi , CHANG Jin-Fu

    … The delay and jitter behaviors are examined for both the constant bit rate(CBR)traffic and variable bit rate(VBR)traffic. … The throughput performance is also obtained for the available bit rate(ABR)traffic. …

    IEICE transactions on communications E84-B(11), 2967-2978, 2001-11-01

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  • 16

    Fairness and Delay of Jitter Reduction Scheme for ATM-ABR Service Class

    ADACHI Naotoshi , KASAHARA Shoji , TAKAHASHI Yutaka

    … これまで筆者らは, ATM-ABR上でマルチメディア通信を実現するため, アプリケーションレベルでのジッタ抑制手法であるIDT法を提案し, ジッタ特性について検証を行ってきた.本研究では, IDT法におけるジッタ抑制効果の公平性および遅延特性についてシミュレーションを用いて評価する.その結果, 提案手法は複数コネクション間でジッタ抑制効果の公平性を達成できること, およびデコーダ側でジッタを吸収する方式と比べ …

    IEICE technical report 101(355), 31-36, 2001-10-12

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  • 17

    Achieving Max-Min Fairness by Decentralization for the ABR Traffic Control in ATM Networks

    RHEE Seung Hyong , KONSTANTOPOULOS Takis

    … The available bit rate (ABR) is an ATM service category that provides an economical support of connections having vague requirements. … An ABR session may specify its peak cell rate (PCR) and minimum cell rate (MCR), and available bandwidth is allocated to competing sessions based on the max-min policy. …

    IEICE transactions on communications E84-B(8), 2249-2255, 2001-08-01

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  • 18

    Controlling End-to-End TCP Flow Using ABR Rate Information (Special Issue on Internet Technology)

    KOIKE Arata

    … Using Available Bit Rate (ABR) service of Asynchronous Transfer Mode (ATM) at a backbone link will provide a lossless network. … We consider how to improve the performance of TCP over a backbone ABR network. … By using ABR feedback information (ACR) at edge-routers, we can adjust intervals of TCP Acknowledgement packets. … This adjustment couples the ABR rate-based control loop and the TCP window-based control loop. …

    IEICE transactions on communications E84-B(8), 2105-2114, 2001-08-01

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  • 19

    A Real-Time Integrated Traffic Management Scheme for VBR and ABR Services in ATM Switching Systems

    RYOO Intae

    … This paper presents a real-time integrated traffic management(RITM) scheme that can effectively manage variable bit rate(VBR) and available bit rate(ABR) traffics having unpredictable characteristics in asynchronous transfer mode(ATM) networks. … In addition to its traffic monitor capability, the proposed scheme intends to dynamically reassign the leftover network resources to VBR/ABR connections without any deterioration in quality of service(QoS) of the existing connections. …

    IEICE transactions on communications E83-B(12), 2648-2660, 2000-12-25

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  • 20

    A Cell Scheduler for Non-Real-Time Traffic with Service Fairness in ATM Networks

    CHEN Wen-Tsuen , LEE Rong-Ruey

    … Non-real-time(NRT)services such as nrt-VBR, ABR and UBR traffic are intended for data applications.Although NRT services do not have stringent QoS requirements for cell transfer delay and cell delay variation, ATM networks should provide NRT services while considering other criteria to ensure an excellent performance such as cell loss ratio(CLR), buffer size requirement and service fairness.Service fairness means that networks should treat all connections fairly.That is, connections with low arrival rates should not be …

    IEICE transactions on communications E83-B(7), 1465-1473, 2000-07-25

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