Modeling and analysis of peer-to-peer networks, wireless networks, and TCP/IP networks

对等网络、无线网络和 TCP/IP 网络的建模和分析

• 批准号: 327675-2006
• 负责人: Qiu, Dongyu
• 金额: $ 1.46万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=338970
• 关键词: Modeling; analysis; peer; networks; wireless

Communication and networking technologies have undergone rapid development in the past decade. However, the rapid development also poses many problems. In this research program, I will investigate how to improve the performance and security of various communication networks, such as peer-to-peer, wireless (including ad-hoc and sensor networks), and TCP networks. In broadband networks, scalability is a very important issue, especially when the user population is getting larger. Peer-to-Peer (P2P) technology is a very promising solution to this problem. I will study the efficiency and incentive mechanisms of P2P systems. In wireless networks, the performance of current systems is still far from being satisfactory. Cross-layer optimization has been believed to be the key technology for good performance in future wireless networks. I plan to apply it to the problem of joint distributed scheduling and congestion control in multi-hop wireless networks. Security has always been an important issue for networks. I will investigate the security problem of how to deal with selfish or malicious users in a wireless ad-hoc network. In the traditional queueing networks, I am interested in the queueing analysis of networks under TCP congestion control, which in return will help us to improve the TCP protocol for next generation networks.

通信和网络技术在过去十年中经历了快速发展。然而，快速发展也带来了许多问题。在这个研究项目中，我将研究如何提高各种通信网络的性能和安全性，如点对点，无线（包括ad-hoc和传感器网络）和TCP网络。在宽带网络中，可扩展性是一个非常重要的问题，特别是当用户数量越来越大时。对等网络（Peer-to-Peer，P2P）技术是一种很有前途的解决方案。我将研究P2P系统的效率和激励机制。在无线网络中，现有系统的性能还远不能令人满意。跨层优化被认为是未来无线网络中获得良好性能的关键技术。我计划将其应用于多跳无线网络中的联合分布式调度和拥塞控制问题。安全一直是网络的重要问题。我将研究如何在无线ad-hoc网络中处理自私或恶意用户的安全问题。在传统的拥塞控制网络中，本文主要研究TCP拥塞控制下的拥塞控制问题，为下一代网络中TCP协议的改进提供参考。