Protocol design and performance evaluation for network science and engineering

互联网在过去的半个世纪里取得了巨大的成功。网络研究界已经意识到，我们现在正站在设计和评估下半个世纪的下一代网络协议的门口。在云计算、智能电网、网络物理系统、在线社交网络等新兴技术的推动下，以网络科学与工程的名义开展了许多工作，如FIND/GENI/NetSE（美国）、FIRE（欧盟）、JGN（日本）等。这些新的组网模式除了满足了性能、可靠性、安全性和可测试性等传统的组网研究需求外，还提出了能效、超可扩展性和异构性等新的挑战，其中网络拓扑的作用越来越重要，影响到所有上层协议。拟议的研究项目，连同加拿大的其他学术和行业研究项目，将使加拿大社会和经济在这场国际竞争中处于领先地位。特别是，传统的网络协议遵循“存储-转发”原则。随着认知无线电、压缩感知、协作通信、空白网络等物理层技术以及网内处理、覆盖网络等上层技术的发展，我们的研究方案将设计原则扩展为“存储-携带-处理-前向”，充分利用可预测、可控制或用户移动性来承载信息，并在网络内部处理数据流，以达到最大容量。这是第一次在研究界提出这样的原则，尽管在过去的几年里，文献已经分别研究了carry和process。由于许多新兴的复杂系统（如车载自组织网络、无线传感器网络、移动社交网络和点对点网络）中的时间/位置变化拓扑结构，我们认为，对于设计和评估我们必须依赖的关键基础设施的新协议来说，这种对存储、传输、过程和转发的彻底检查是非常必要的。

The Internet has achieved great success in the last half century. The networking research community has realized that we are now at the doorstep of designing and evaluating next-generation network protocols for the next half century. There are many efforts already initiated, such as FIND/GENI/NetSE (US), FIRE (EU), JGN (Japan), etc, driven by the emerging of cloud computing, smart grids, cyber-physical systems, online social networks, etc, collectively under the name of network science and engineering. Besides the traditional demand on networking research, such as performance, reliability, security and testability, these new networking paradigms have created many new challenges such as energy-efficiency, ultra-scalability and heterogeneity, and so on, among which the network topology plays an increasingly important role and affects all upper-layer protocols. The proposed research program, together with other academic and industry research programs in Canada, will keep Canadian society and economy on the leading edge of this international competition. Particularly, traditional network protocols follow the "store-and-forward" principle. With the advance of physical-layer technologies such as cognitive radio, compressive sensing, cooperative communication and white-space networking, as well as the upper-layer technologies such as in-network processing and overlay networking, the design principle is expanded to "store-carry-process-forward" in our research program, to fully utilize predictable, controlled, or user mobility to carry information and to process data flows inside the network to achieve the maximum capacity. This is the first time that such principle is proposed in the research community, although the literature has been examining carry and process separately in last few years. Due to the time/location-varying topology in many emerging, complex systems such as vehicular ad hoc networks, wireless sensor networks, mobile social networks and peer-to-peer networks, we believe such a thorough examination of store, carry, process and forward is very necessary to design and evaluate new protocols for the critical infrastructures that we have to rely on.