检索结果-内蒙古大学图书馆

conference on multimedia computing and networking 1996

作者： Agrawal, P Hyden, E Krzyzanowski, P Srivastava, MB Trotter, J AT&T BELL LABS NETWORKED COMP RES DEPTMURRAY HILLNJ 07974

ISBN: (纸本)0819420417

Anytime anywhere wireless access to databases, such as medical and inventory records, can simplify workflow management in a business, and reduce or even eliminate the cost of moving paper documents. Moreover, continual progress in wireless access technology promises to provide per-user bandwidths of the order of a few Mbps, at least in indoor environments. When combined with the emerging high-speed integrated service wired networks, it enables ubiquitous and tetherless access to and processing of multimedia information by mobile users. To leverage on this synergy an indoor wireless network based on room-sized cells and multimedia mobile end-points is being developed at AT&T Bell Laboratories. This research network, called SWAN (Seamless Wireless ATM networking), allows users carrying multimedia end-points such as PDAs, laptops, and portable multimedia terminals, to seamlessly roam while accessing multimedia data streams from the wired backbone network. A distinguishing feature of the SWAN network is its use of end-to-end ATM connectivity as opposed to the connectionless mobile-IP connectivity used by present day wireless data LANs. This choice allows the wireless resource in a cell to be intelligently allocated amongst various ATM virtual circuits according to their quality of service requirements. But an efficient implementation of ATM in a wireless environment requires a proper mobile network architecture. In particular, the wireless link and medium-access layers need to be cognizant of the ATM traffic, while the ATM layers need to be cognizant of the mobility enabled by the wireless layers. This paper presents an overview of SWAN's network architecture, briefly discusses the issues in making ATM mobile and wireless, and describes initial multimedia applications for SWAN.

关键词： Asynchronous transfer mode multimedia Virtual colonoscopy Video Network architectures computing systems Data processing Local area networks Personal digital assistants Transceivers

来源：评论

学校读者我要写书评

暂无评论

The MIM web gateway to IP multicast E-meetings

The MIM web gateway to IP multicast E-meetings

引用

conference on multimedia computing and networking

作者： Parviainen, R Parnes, P Lulea Univ Technol Div Media Technol Dept Comp Sci & Elect S-97187 Lulea Sweden

ISBN: (纸本)0819452084

As video conferencing and e-meeting systems are used more and more on the Internet and in businesses it becomes increasingly important to be able to participate from any computer at any location. Often this is impossible, since these systems requires often special software that are not available everywhere or impossible to install for administrative reasons. Many locations also lack the necessary network infrastructure such as IP multicast. This paper presents a WWW gateway System that enables users to participate using only a standard web browser The design and architecture of the system are described and performance tests that show the scalability of the system are also presented.

关键词： multimedia gateways video conferencing multicast RTP HTTP WWW

来源：评论

学校读者我要写书评

暂无评论

Correlation-aware multimedia content distribution in overlay networks

Correlation-aware multimedia content distribution in overlay...

引用

conference on multimedia computing and networking 2006

作者： Zhu, Y Li, BC Univ Toronto Dept Elect & Comp Engn Toronto ON M5S 3G4 Canada

ISBN: (纸本)0819461113

We address the question: What is the best way to construct a mesh overlay topology for mulfimedia content distribution, such that the highest streaming rate can be achieved? We model overlay capacity correlations as linear capacity constraints (LCC) and propose a distributed algorithm that constructs an overlay mesh which incorporates heuristically inferred linear capacity constraints. Our simulations results confirm the accuracy of representing overlays using our LCC model and show the LCC-overlay achieving substantial improvement in achievable flow rate.

关键词： overlay networks overlay construction peer-to-peer networks network protocol

来源：评论

学校读者我要写书评

暂无评论

CLOSE & CLOSER: DISCOVER SOCIAL RELATIONSHIP FROM PHOTO COLLECTIONS

CLOSE & CLOSER: DISCOVER SOCIAL RELATIONSHIP FROM PHOTO COLL...

引用

IEEE International conference on multimedia and Expo

作者： Wu, Peng Ding, Weimin Mao, Zhidong Tretter, Dan HP Labs Multimedia Interact & Understanding Lab Palo Alto CA 94304 USA Hewlett Packard Corp Technol Solut Grp Shanghai Peoples R China

ISBN: (纸本)9781424442904

"Close & Closer" is a social imaging application that performs analysis on photo collections to reveal closeness of people's relationship and presents the discovered relationship in an interactive manner to prompt photo sharing and people connection. It addresses two challenges with innovative solutions: first, a closeness measurement is proposed based on face detection and clustering result;Secondly, a computing framework is designed and implemented to execute computation extensive jobs, such as face detection and clustering, in a both distributed and parallel manner to assure the application's usability. The application is deployed on Facebook social networking platform. The effectiveness of the closeness measurement and computing framework are validated through the real user experience.

关键词： Social relationship photo collections face detection face clustering

来源：评论

学校读者我要写书评

暂无评论

ActiveM(3) - An authoring system for active multimedia mail

ActiveM(3) - An authoring system for active multimedia mail

引用

conference on multimedia computing and networking 1996

作者： Schirmer, J Kirste, T COMP GRAPH CTR ZGDV DARMSTADTGERMANY

ISBN: (纸本)0819420417

Today the idea and the mechanisms of multimedia Mail (MMM), the transmission of multimedia information like images, audio and video objects etc. as an extension to email, and the related problems and solution concepts are very well known. The idea of Computational or Active Mail (AM) has existed since 1976;transfer programs embedded in standard mail which automatically execute at the receivers site, bringing mail to life. The integration of both mechanisms (MMM and AM) leads to the concept of Active multimedia mail. The object of ACTIVEM³ is the development and implementation of a system for the realization of Active multimedia Mail and a Composing Tool as an easy to use interactive authoring environment. This paper introduces the basic ideas. The results of the proposed concept are presented through a realized prototype. ©2004 Copyright SPIE - The International Society for Optical Engineering.

关键词： active mail computational mail multimedia mail MIME remote programming synchronization

来源：评论

学校读者我要写书评

暂无评论

Introduction to the IEEE Transactions on Mobile computing

引用

IEEE Transactions on Mobile computing 2002年第1期1卷 2-3页

作者： La, Porta, Thomas F. IEEE

No abstract available

关键词： Mobile computing Pervasive computing Computer Networks Application Software Computer Architecture Communication Networks IP Networks Web And Internet Services Communications Technology Mobile Communication

来源：评论

学校读者我要写书评

暂无评论

Less Latency and Better Protection with AL-FEC Sliding Window Codes: a Robust multimedia CBR Broadcast Case Study 13

Less Latency and Better Protection with AL-FEC Sliding Windo...

引用

13th IEEE International conference on Wireless and Mobile computing, networking and Communications (WiMob)

作者： Roca, Vincent Teibi, Belkacem Burdinat, Christophe Tuan Tran Thienot, Cedric INRIA Le Chesnay France Expway Paris France

ISBN: (纸本)9781538638392

Application-Level Forward Erasure Correction (AL-FEC) codes have become a key component of communication systems in order to recover from packet losses. This work analyzes the benefits of the AL-FEC codes based on a sliding encoding window (A.K.A. convolutional codes) for the reliable broadcast of real-time flows to a potentially large number of receivers over a constant bit rate channel. It first details the initialization of both sliding window codes and traditional block codes in order to keep the maximum AL-FEC decoding latency below a target latency budget. Then it presents detailed performance analyzes using official 3GPP mobility traces, representative of our use case which involves mobile receivers. This work highlights the major benefits of RLC codes, representative of sliding window codes, that outperform any block code, from Raptor codes (that are part of 3GPP MBMS standard) up to ideal MDS codes, both in terms of reduced added latency and improved robustness. It also demonstrates that our RLC codec features decoding speeds that are an order of magnitude higher than that of Raptor codes.

关键词： Packet loss channel AL-FEC codes sliding window codes RLC codes low latency communications Robust multimedia communications 3GPP MBMS

来源：评论

学校读者我要写书评

暂无评论

Energy-efficient Approach towards Video-based Sensor Networks (Wireless) beneath Barrier Coverage 8

Energy-efficient Approach towards Video-based Sensor Network...

引用

8th International conference on computing, Communication and networking Technologies (ICCCNT)

作者： Singh, Juginder Pal Mishra, Manas Kumar Khan, Mohd Aamir GLA Univ Dept Comp Engn & Applicat Mathura India

ISBN: (纸本)9781509030385

The Modern pace in hardware technology such as the accessibility of small-scale array sensors, low cost CMOS cameras and microphones has prompted the evolution in the arena of communication (wireless) amidst the network of sensor is equipped with multimedia devices such as Micro Electro-Mechanical Systems (HEMS), To capture the limitations pertaining to sensor nodes (video-based) as well as sensor networks (wireless), a video stream (which supports it) is difficult to be effected keeping the contemporary sensor network protocols into consideration. The present paper exhibits a comprehensive architecture pertaining to video transmission in connection with Wireless multimedia Sensor Network (WMSN) called Energy-efficient and Video transmission Architecture. The inclination towards usage of video-based Wireless Sensor Networks (WSN) applications has showed significant gains. Video WSN behaves quite differently from the traditional sensor networks in the sense that it involves a sensing model (directional in nature), an in-node processing which is complex and transfer of large amount of data, thus resulting in frequencies which are high clock and transmission time (radio) which is significant in nature. To ensure reliability of applications, energy consumption reduction is a prime requirement. In this paper, we have come up with a novel energy conservation technique which hinges on Barrier Coverage Preservation rather than Blanket Coverage.

关键词： Wireless Sensor Network multimedia Delivery Wireless multimedia Sensor Network video Surveillance

来源：评论

学校读者我要写书评

暂无评论

ADS: Adaptive and Dynamic Scaling Mechanism for multimedia Conferencing Services in the Cloud 15

ADS: Adaptive and Dynamic Scaling Mechanism for Multimedia C...

引用

15th IEEE Annual Consumer Communications and networking conference (CCNC)

作者： Soltanian, Abbas Naboulsi, Diala Salahuddin, Mohammad A. Glitho, Roch Elbiaze, Halima Wette, Constant Concordia Univ Montreal PQ Canada Univ Waterloo Waterloo ON Canada Univ Quebec Montreal PQ Canada Ericsson Mississauga ON Canada

ISBN: (纸本)9781538647905

multimedia conferencing is used extensively in a wide range of applications, such as online games and distance learning. These applications need to efficiently scale the conference size as the number of participants fluctuates. Cloud is a technology that addresses the scalability issue. However, the proposed cloud-based solutions have several shortcomings in considering the future demand of applications while meeting both Quality of Service (QoS) requirements and efficiency in resource usage. In this paper, we propose an Adaptive and Dynamic Scaling mechanism (ADS) for multimedia conferencing services in the cloud. This mechanism enables scalable and elastic resource allocation with respect to the number of participants. ADS produces a cost efficient scaling schedule while considering the QoS requirements and the future demand of the conferencing service. We formulate the problem using Integer Linear Programming (ILP) and design a heuristic for it. Simulation results show that ADS mechanism elastically scales conferencing services. Moreover, the ADS heuristic is shown to outperform a greedy algorithm from a resource-efficiency perspective.

关键词： Cloud computing multimedia Conferencing Platform-as-a-Service Resource Allocation Scaling Algorithm

来源：评论

学校读者我要写书评

暂无评论

Extensible Orchestration of Elastic IP multimedia Subsystem as a Service using Open Baton 5

Extensible Orchestration of Elastic IP Multimedia Subsystem ...

引用

5th IEEE International conference on Mobile Cloud computing, Services, and Engineering (MobileCloud)

作者： Bellavista, Paolo Foschini, Luca Venanzi, Riccardo Carella, Giuseppe Univ Bologna Dept Comp Sci & Engn DISI Bologna Italy Univ Ferrara Dept Engn Ferrara Italy Tech Univ Berlin Dept Next Generat Networks Berlin Germany

ISBN: (纸本)9781509063253

Many recent projects and research activities in the telco sector are adopting the Cloud Computer paradigm consolidating their infrastructures towards converged and all-IP next generation networks providing typical telco services within LTE (and soon 5G) and also fixed network environments, e.g., often still adopting IP multimedia Subsystem (IMS) architecture solutions. In this perspective, cloud computing can significantly lower investment risks by implementing telco services with Virtual Network Functions (VNFs) on top of a Network Functions Virtualization (NFV) Infrastructure. Within this general context, this paper presents the implementation and integration work accomplished within the large EU FP7 Mobile Cloud networking project (MCN, 2013-2016) to achieve costeffective elasticity of IMS-based multimedia applications. The paper shows how it has been designed and implemented an elastic IMS-compliant solution by exploiting the widespread Asterisk server as media gateway. Quality monitoring and scale in/out triggering are obtained through the interaction between the MCN Monitoring as a Service (MaaS) and OpenBaton, i.e., a novel open-source NFV Orchestrator (NFVO) integrated in MCN and fully compliant with the ETSI NFV Management and Orchestration (MANO) specifications. The collected performance results of the proposed solution, demonstrates the fully feasibility of the approach adopted and explained in this paper.

关键词： Elasticity IP multimedia Subsystem (IMS) Network Function Virtualization Mobile Cloud networking Asterisk Media Gateway Open Baton

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：