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基于multicast和智能Agent的实时在线拍卖

维普期刊数据库评论

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重庆大学学报（自然科学版） 2004年第5期27卷 127-130页

作者：李世新邬晓岚重庆大学经济与工商管理学院重庆400030 后勤工程学院后勤自动化工程系重庆400041

当前的各种在线拍卖形式都是非实时性的,存在很多不足。而且它们都以拍卖者为中心,拍卖者与竞买者之间形成星型的信息交流模式,实际上仅仅是传统拍卖方式的电子化,未能充分发挥因特网的作用。为了解决这些问题,提出了一种实时在线拍卖模... 详细信息

当前的各种在线拍卖形式都是非实时性的,存在很多不足。而且它们都以拍卖者为中心,拍卖者与竞买者之间形成星型的信息交流模式,实际上仅仅是传统拍卖方式的电子化,未能充分发挥因特网的作用。为了解决这些问题,提出了一种实时在线拍卖模式,使在线拍卖转变为拍卖者与竞买者对等,两者之间形成网状的信息交流模式。分析了实时在线拍卖的特点。阐述了multicast技术在实时在线拍卖中的应用,以及如何借助智能Agent技术来减轻竞买者和拍卖者的负担。最后通过实验系统,对实时在线拍卖的应用效果进行了验证。

关键词：实时在线拍卖 multicast 智能Agent

WDM全光网络中multicast的寻径与波长分配算法

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计算机工程与应用 2002年第15期38卷 153-156,163页

作者：黄传河陈莘萌贾小华武汉大学计算机学院武汉430072 香港城市大学电脑科学系

在WDM全光网络中实现实时multicast功能是计算机网络的应用要求,也是现代计算机网络的重要特征。该文提出了一种在WDM全光网络中实现实时multicast的算法。该算法以辅助的波长图为基础,将寻径与波长分配统一进行,构造满足延迟约束的、... 详细信息

在WDM全光网络中实现实时multicast功能是计算机网络的应用要求,也是现代计算机网络的重要特征。该文提出了一种在WDM全光网络中实现实时multicast的算法。该算法以辅助的波长图为基础,将寻径与波长分配统一进行,构造满足延迟约束的、具有较低成本的multicast树,实现multicast功能。

关键词： WDM 全光网络 multicast 寻径波长分配算法 Steiner树计算机网络波长寻径网络

A Study of Broadband Intelligent Network Implementing Video Conference and multicast Routing Algorithm

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The Journal of China Universities of Posts and Telecommunications 2001年第1期8卷 77-77页

作者： LONG Yuan xiang directed by CHEN Jun liang.

The dissertation studies the architecture of broadband intelligent network (BIN) and implementation of video conference based on ATM network and of multicast routing problem on video conference using BIN under the aid of the important task Study of IN and B ISDN Integration (69896244) sponsored by National Natural Science Fund. A lot of points of view and solutions are present. The main contributions in the dissertation are as follows:\; (1) Design the new architecture of BIN and improve the architecture of BIN proposed by ITU T. It is easy to set up the connections of video conference using the new architecture of BIN.\; (2) Present the detailed scheme that BIN controls and implements video conference without specialized resource function, study the scheme of all the media on video conference transmitted and switched under the control of BIN, and discuss how to implement point to multipoint communications using BIN.\; (3) First present the scheme of implementing multicast routing algorithms on video conference using BIN.\; (4) Explicitly introduce a series of concepts including neighboring node, neighboring node set, neighboring edge, then propose an Adjustable Dynamic multicast (ADM) routing algorithm which is suitable for video conference, analyze its performances, and prove the algorithm is appropriate and feasible.\; (5) Develop a degree constrained dynamic multicast (DADM) routing algorithm which can find less cost multicast routing tree. The results of simulation and experiments confirm that DADM algorithm can find the less cost multicast tree. Finally, analyze the relation between the size of degree constrained and value of multicast tree cost.\; (6) Present a delay constrained dynamic multicast routing algorithm suitable for video conference characteristic, and advise a series of schemes reducing the delay of transmitting all the media on videoconference.\; (7) First propose implementing the reliable multicast routing tr

关键词： intelligent network asynchronous transfer mode video conference, flow control fuzzy logic object oriented multicast protocol

IP multicast在航天地面监控系统中的应用

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IP Multicast在航天地面监控系统中的应用

中国空间科学学会空间探测专业委员会第十三次学术会议

作者：李绪志中科院空间中心

在航大地面监控系统中的多机或集群的环境下,采用IP multicast机制,建立各个组播群,每个组中发送者唯一,即只有主机发送;接收者多个,主副机同时接收.同时在多任务与多用户的条件下,可以将各个任务分割,将用户分组.这样可以优化使用网络... 详细信息

在航大地面监控系统中的多机或集群的环境下,采用IP multicast机制,建立各个组播群,每个组中发送者唯一,即只有主机发送;接收者多个,主副机同时接收.同时在多任务与多用户的条件下,可以将各个任务分割,将用户分组.这样可以优化使用网络资源,提高系统的可用性,支持多任务.

关键词： multicast 监控 Push/Pull 实时

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基于multicast的网上教学研究

湖北师范学院学报（自然科学版） 2002年第4期22卷 112-114页

作者：黄? 湖北师范学院计算机科学系湖北黄石435002

multicast是计算机网络中的一种特殊的、高效的通信方式 ,在这种方式中 ,发送者有选择地向一组接收者发送信息。文章介绍了multicast的通信机制 ,并以multicast技术为基础构造了网上教学的框架和流程。

关键词：网上教学 multicast 通信机制通信方式网络结构教学流程 CAI

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PCIe multicast(组播)实现

信息通信 2014年第7期27卷 76-77页

作者：吴艳平胜克半导体科技(上海)有限公司上海01906

PCI-Express是最新的总线和接口标准。传统的PCIe通讯通常是主机与单个目标设备通讯,随着应用技术的提高,系统通讯效能的要求也越来越高,PCIE通讯Mulitcast(组播)的应用也越来越广泛。文章给出PCIE multicast的一些基本概念,并对如何实... 详细信息

PCI-Express是最新的总线和接口标准。传统的PCIe通讯通常是主机与单个目标设备通讯,随着应用技术的提高,系统通讯效能的要求也越来越高,PCIE通讯Mulitcast(组播)的应用也越来越广泛。文章给出PCIE multicast的一些基本概念,并对如何实现PCIe组播做了简要阐述。

关键词： PCIe PCIe multicast PCIe组播

Fault-Tolerant Tree-Based multicasting in Mesh Multicomputers

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Journal of Computer Science & Technology 2001年第5期16卷 393-409页

作者：吴杰陈皛 DepartmentofComputerScienceandEngineering FloridaAtlanticUniversityBocaRatonFL33431USA ComputerScienceDepartment SouthwestTexasStateUniversitySanMarcosTX78666USA

We propose a fault-tolerant tree-based multicast algorithm for 2-dimensional (2-D) meshes based on the concept of the extended safety level which is a vector associated with each node to capture fault information in the neighborhood. In this approach each destination is reached through a minimum number of hops. In order to minimize the total number of traffic steps, three heuristic strategies are proposed. This approach can be easily implemented by pipelined circuit switching (PCS). A simulation study is conducted to measure the total number of traffic steps under different strategies. Our approach is the first attempt to address the fault- tolerant tree-based multicast problem in 2-D meshes based on limited global information with a simple model and succinct information.

关键词： fault tolerance faulty block mesh minimal routing multicast pipelined circuit switching (PCS) safety level

Service-Oriented Wireless Multimedia multicasting with Partial Frequency Reuse

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Tsinghua Science and Technology 2016年第6期21卷 598-609页

作者： Quanxin Zhao Liang Xu Yuming Mao Supeng Leng Geyong Min Jia Hu Noushin Najjari the School of Communication and Information Engineering University of Electronic Science and Technology of China the College of Engineering Mathematics and Physical Sciences University of Exeter

Service-Oriented Architecture（SOA） is employed in a wide range of applications because it promises to expose computation-intensive tasks as services and combine them with new applications to accelerate their applications development process. For service-oriented multimedia applications, the performance of multicasting transmission services under multimedia traffic must be evaluated. Multiview Video（MVV） is a promising and emerging type of multimedia traffic that consists of multiple video streams, allows stream switching, and requires strict Quality-of-Service（Qo S）. In this study, we investigated multicast transmission of MVV in wireless cellular networks with Partial Frequency Reuse（PFR） and focused on two challenging problems：（1） multicast group formation and（2） subchannel and power allocation. Initially, we propose a novel Content-based Partial frequency reuse Diversity Grouping（CPDG） scheme to allocate users to multicast groups on the basis of Partial frequency reuse Diversity（PD） in wireless networks with PFR. After group formation, an optimization problem for subchannel and power allocation is formulated to minimize network power consumption under Qo S constraint. Thereafter,the optimization problem is divided into two subproblems and solved using simplex method and Karush-KuhnTucker（KKT） condition. Finally, to solve the optimization problem, a suboptimal scheme referred to as Partial frequency reuse Diversity Based Energy-efficient multicasting（PDEM） is proposed by dynamically allocating wireless resources under Qo S constraint. The simulation results show that the proposed PDEM scheme can achieve close-to-optimal performance. Moreover, mathematical analysis of the effect of PD on network performance can provide guidelines for optimization of multimedia traffic in multicasting-enabled wireless cellular networks with PFR.

关键词： service-oriented multimedia multicast quality-of-service frequency reuse diversity

Optimal power allocation for a video layered multicasting relay strategy in cellular system

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Journal of Harbin Institute of Technology(New Series) 2011年第6期18卷 63-67页

作者：王成金李屹张琳纪红 Key Lab of Universal Wireless Communication Ministry of EducationBeijing University of Posts and Telecommunications IEEE

Within a cell of cellular system,cooperative relay technique can improve the performance of multicast efficiently,but it can cause the stream frequent interruptions because of the mobility of relay terminals.A video layered cooperative relay strategy is proposed to guarantee the continuity of multicast stream and retain high-bandwidth of the cooperative relay *** on the capacity analysis for layered relay channel in the strategy,the optimal power allocation is studied to maximize *** analyzing and optimizing the capacity in abstract models,the study is extended to a non-fading and a Gaussian wireless channel model to satisfy the scenario of cellular *** the relay nodes position or distribution of noise power,the obtained results can determine the optimal power allocation among the transmitter and relay *** last,the simulation results show that the strategy and its optimal power allocation have a significant improvement on the performance.

关键词： capacity cellular system layered relay multicast