CAREER: Advances in Peer-to-Peer Networking

职业：点对点网络的进步

• 批准号: 0133055
• 负责人: Brian Levine
• 金额: --
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-03-01 至 2009-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0133055&HistoricalAwards=false
• 关键词: CAREER; Advances; Peer; Networking

Metcalfe's law states that the "value" of a network increases with the square of the number of users.However, for most applications, as the number of participants increases, performance degrades, andso too does the value of application to the user. Centralized service and application architecturesare most at risk for not maintaining performance with an increasing user base. Centralized sites canrepresent a processing bottleneck, a single point of failure, or single point ofattack. Furthermore,a single server cannot mitigate for client's poor network conditions in third-party domains. Repli-cating and distributing servers is one solution for solving the problems of centralized architectures. Peer-to-peer services take distribution even further by using collaborative clients who are pre-pared and expected to perform some or all the functions of servers. As new clients bring new loadto the systems, they also bring new resources. Thus, peer-to-peer, collaborative services can be apowerful paradigm: if on average clients bring enough or more than enough resources to balancethe load and cost they incur, then peer-to-peer services can increase in value and performance withthe number of participants. The primary purpose of this proposal is to make fundamental advances in the understanding anddesign of applications and services that make use of replication and collaboration in a peer-to-peerenvironment. Opportunities for the application of peer-to-peer techniques in new disciplines seemlimitless. I propose to examine several applications that are only possible, or achieve their bestperformance, using peer-to-peer architectures and not centralized architectures. These include thenovel peer-to-peer applications of anonymity, secure ad-hoc routing, mobility-based transport forwearable computers, cheat-proof serverless gaming, and distributed information retrieval. There are commonalities to all the numerous peer-to-peer applications we will study: the ex-istence of heterogeneous peer resources, redundancy of offered services at peers, and replication ofapplication data and content. By addressing these issues, the researcher will make important advances in discovery and understanding of peer-to-peer networking and by applying those results to a diverse setof problem areas, the researcher's work will make a broader impact in in fields as diverse as security (privacy, availability, and secure routing), mobile computing, wearable computing, multimedia and gaming,and distributed information retrieval. The major theme of the researcher's proposed educational activities is the involvement of undergraduatesin original research. The goal of the educational proposal is to prepare undergraduate studentsfor graduate school by providing them with an early opportunity toperform research. It consistsof an integrated plan of publishable undergraduate research projects, new course curriculum, thedevelopment of practical lab exercises in networking and network security, distance learning, andminority outreach. By focusing the research of undergraduates on the themes of this proposal, the researcher is ensuring anumber of benefits. First, that the impact of this educational component is tightly integrated withmy research objectives. Second, by coordinating efforts with the director of the Northeast Alliancefor Graduate Education and the Professoriate (NEAGEP), the researcher will improve minority outreach inthe department by preparing and encouraging under-represented minority students to continue onfor doctoral programs at UMass and other universities. Third, the researcher will advance the department'steaching mission by providing a new three-course curriculum of networking and security. Fourth,the researcher will produce a standard set of practical laboratory exercises in networking and network security to be used at any university. Finally, the availability ofmy curriculum and practical exercises, aswell as UMass's existing Video Instruction Program and MANIC distance learning programs, willincrease the external impact of the curriculum.

Metcalfe定律指出，网络的“价值”随用户数量的平方而增加。对于大多数应用程序，随着参与者的数量增加，性能降低，并且应用程序对用户的价值也是如此。集中式服务和应用程序体系结构最有可能不维持使用用户群来维持性能的风险。集中式站点conecrestent conecting overing瓶颈，单点故障或攻击点。此外，单个服务器无法缓解客户端在第三方域中的网络条件差。换换和分发服务器是解决集中式体系结构问题的一种解决方案。 点对点服务通过使用预先准备并有望执行服务器的某些或所有功能的协作客户端，进一步分发。随着新客户为系统带来新的负载，他们还带来了新的资源。因此，点对点，协作服务可以是恰当的范式：如果客户平均带来足够或足够多的资源来平衡负载和成本，那么点对点服务可以随着参与者的数量而增加价值和绩效。 该提案的主要目的是在了解和服务的应用程序和服务方面取得基本进步，这些应用程序和服务在点对点环境中利用复制和协作。在新学科中应用点对点技术的机会似乎无限。我建议使用点对点体系结构而不是集中式体系结构来检查几种只能或实现其最佳性能的应用程序。其中包括匿名，安全的临时路由，基于移动性的运输能力计算机，无备件无服务器游戏和分布式信息检索的对等应用程序。 我们将研究的所有众多点对点应用程序都有共同点：异构对等资源的前置，在同龄人提供服务的冗余以及对应用数据和内容的复制。通过解决这些问题，研究人员将在发现和理解点对点网络方面取得重要进展，并将这些结果应用于多样化的问题领域，研究人员的工作将在诸如安全性（隐私，可用性和安全路由），移动计算，可穿戴计算，多模拟，多媒体和游戏和分布式信息的领域中产生更大的影响。 研究人员提出的教育活动的主要主题是本科生原始研究的参与。教育建议的目的是通过为研究生院提供早期机会的研究生研究来为本科生做好准备。它组成了一项综合计划的本科生研究项目，新课程课程，网络安全和网络安全性实验室练习，远程学习以及界限外展览的计划。 通过将本科生的研究集中在该提案的主题上，研究人员正在确保益处。首先，这种教育组成部分的影响与我的研究目标紧密相结合。其次，通过与东北联盟研究生教育和教授（NEAGEP）的主任协调努力，研究人员将通过准备和鼓励代表性不足的少数族裔学生继续为UMass和其他大学提供博士学位课程来改善该部门的少数民族宣传。第三，研究人员将通过提供新的三道义网络和安全课程来推进部门的任务。第四，研究人员将在任何大学使用网络和网络安全方面进行一套标准的实验室练习。最后，我的课程和实践练习的可用性，以及UMASS现有的视频指导计划和躁狂远程学习计划，将缩减课程的外部影响。