CAREER: A Flexible Flow- and Error-Control Protocol-Integration Architecture for Multicast Services Over Mobile Networks

职业：移动网络上多播服务的灵活的流量和错误控制协议集成架构

• 批准号: 0348694
• 负责人: Xi Zhang
• 金额: $ 40万
• 依托单位: Texas A&M Engineering Experiment Station
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-03-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0348694&HistoricalAwards=false
• 关键词: CAREER; Flexible; Flow; Error; Control

Mobile multicast provides a highly efficient and flexible way of simultaneously disseminating data or information from one source to multiple location-independent receivers. However, providing the efficient flow and error-control for multicast services over the mobile networks presents many chal- lenges that are not encountered in the wired or unicast networks. First, multicast itself imposes the scalability problems in both flow and error control protocols. Second, random-loss probability over the wireless links are much higher than the wired networks due to the wireless noise, channel fad- ing, and frequent handoffs. Third, wireless link introduces non-congestion losses and heterogeneous loss properties, which requires the new flow and error-control schemes. Finally, the coexistence of unicast with multicast, wired with wireless, and real-time with non-real-time applications within a common network causes the significant diversity of Quality of Services (QoS) requirements and fair- ness issues. Unfortunately, the current advances in the development of new flow and error-control protocols supporting mobile multicast are not keeping pace with these challenges. Without investing immediate research effort in this area, these challenges will likely slow the rate at which we develop the next-generation Internet.There is no "one-size fits all" protocol that can solve all the above challenges by best meeting the significantly diverse flow and error-control requirements imposed by multicast services over mobile networks. To overcome this problem, we propose to develop a novel architecture which, using the decoupled flow and error structure, enables flexible integrations of different flow and error control protocols to efficiently fit the QoS requirements for any given specific mobile multicast transport. On the other hand, the proposed architecture also allows different flow and error-control protocols to coexist in a common network. While the proposed architecture focuses only on the flow and error control applied to multicast services over mobile networks in this proposal, it is a generic protocol developing methodology and thus can be beneficial in many other applications of protocol development. The specific research topics/areaB to be explored in detail in this proposal include:.Develop the flexible architecture on which different flow and error protocols can be integrated efficiently to meet the different QoS requirements for multicast services over mobile networks..Design the uniform/general interfacing techniques/structures for flexible integrations of different types of decoupled flow and error protocols..Investigate the fairness and coexistence issues of multiple protocols and their TCP-friendliness with currently existing TCP-traffics in the Internet..Validate and evaluate the proposed architecture, flow and error protocols, and protocol interfacing techniques through various analytical approaches, simulation tools, and testbed systems.Intellectual merit: The proposed research project is expected to have an important impact on the development of the general-purpose architecture for designing flexible integrations of multiple flow and error-control protocols for mobile multicast and other services in the next-generation Inter- net. The industrial collaboration is being pursued with a number of companies to obtain feedback and test the developed results in a real-life setting, and enable the technology transfer. The PI has ongoing research collaboration with IBM T. J. Watson Research Center and TI Digital Video Communication Department that will be leveraged upon in this project.Broader impact: The education component of the proposal focuses on building a strong un- dergraduate and graduate program in Computer Networking at Texas A&M University. To achieve this goal, the PI plans to undertake a number of educational projects during the next few years:.Develop a new graduate level course on mobile wireless networks..Design a lab set for the undergraduate course on Computer Networking..Integrate the planned research prototype as a test bed for graduate course on wireless networks.

移动多播提供了一种高效且灵活的方式，可以从一个源到多个独立于位置的接收器同时传播数据或信息。但是，在移动网络上为多播服务提供有效的流量和错误控制，这表明了在有线或单播网络中未遇到的许多CHALLENGES。首先，多播本身在流量和错误控制协议中施加可伸缩性问题。其次，由于无线噪声，通道淡出和频繁的交接，因此无线链接上的随机损失概率远高于有线网络。第三，无线链接引入了非和损失的损失和异质损失属性，这需要新的流量和误差控制方案。最后，Unicast与多播的共存，与无线连接，并与公共网络中的非实时应用程序进行了实时，这会导致服务质量（QOS）要求和公平问题的显着多样性。不幸的是，支持移动多播的新流量和错误控制协议的开发中的最新进展并不能跟上这些挑战。如果没有在这一领域进行立即进行研究工作，这些挑战可能会减慢我们开发下一代互联网的速度。没有“单一尺寸适合所有”协议可以通过最佳满足多样性多样化的流量和错误控制要求来解决上述所有挑战。为了克服这个问题，我们建议开发一种新颖的体系结构，该架构使用解耦的流量和误差结构，可以灵活地集成不同的流量和误差控制协议，以有效地适合任何给定特定的特定移动多播传输的QoS要求。另一方面，所提出的体系结构还允许不同的流量和错误控制协议可以在公共网络中共存。虽然所提出的体系结构仅着眼于本提案中通过移动网络应用于多播服务的流量和错误控制，但这是一种通用协议开发方法，因此在协议开发的许多其他应用程序中可能是有益的。该建议中要详细探讨的具体研究主题/区域包括：开发可有效地集成不同的流量和错误协议，以满足移动网络上多播服务的不同QoS要求。设计均匀/范围的一般交流技术/结构，以促进多个类型的流量和错误协议及其范围的范围且范围的流量范围及其范围的范围。 TCP友好性具有当前现有的TCP交通技术。进行估算和评估所提出的架构，流量和错误协议，以及通过各种分析方法，模拟工具和测试台系统的协议交织技术的协议交织技术。智能优点：预计，预期该项目将对一般性的易变架构具有重要的范围，以便对通往的易变型和范围的范围进行范围的范围，以实现一般性的范围，并符合范围的范围，以范围内的范围内部的范围内的范围内部的范围内的范围内的范围内的范围内的范围内的设施范围内的设施范围内的设施。下一代中的多播和其他服务。正在与许多公司进行工业合作，以获取反馈并在现实生活中测试开发的结果，并实现技术转让。 PI与IBM T. J. Watson Research Center和Ti数字视频通信部门进行了持续的研究合作，该研究将在此项目中利用。BroaderImpact：该提案的教育部分旨在在德克萨斯州A＆M大学建立强大的非社交和研究生课程。为了实现这一目标，PI计划在接下来的几年内开展许多教育项目：。开发有关移动无线网络的新研究生级课程。设计用于计算机网络的本科生课程的实验室。将计划研究的研究原型集成为无线网络研究生课程的测试床。