Protocol design and performance evaluation for network science and engineering

互联网在过去的半个世纪取得了巨大的成功。网络研究界已经意识到，我们现在正处于为下半个世纪设计和评估下一代网络协议的门槛。在云计算、智能电网、网络物理系统、在线社交网络等的出现的推动下，已经发起了许多努力，例如FIND/GENI/NetSE（美国）、FIRE（欧盟）、JGN（日本）等，这些努力统称为网络科学和工程。这些新的网络模式在满足网络性能、可靠性、安全性和可测试性等传统需求的同时，也带来了能量效率、超扩展性和异构性等新的挑战，其中网络拓扑结构扮演着越来越重要的角色，影响着所有的上层协议。拟议的研究计划，连同加拿大其他学术和工业研究计划，将使加拿大社会和经济在这一国际竞争中处于领先地位。特别地，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、空白频段网络等物理层技术以及网内处理、覆盖网络等上层技术的进步，我们的研究计划将设计原则扩展为“存储-携带-处理-转发”，充分利用可预测、可控制、或用户移动性来承载信息并处理网络内的数据流以实现最大容量。这是第一次，这样的原则是在研究界提出的，虽然在过去的几年里，文献一直在审查携带和过程分开。由于在许多新兴的，复杂的系统，如车载ad hoc网络，无线传感器网络，移动的社交网络和对等网络中的时/位置变化的拓扑结构，我们相信这样一个彻底的检查存储，携带，处理和转发是非常必要的设计和评估新的协议的关键基础设施，我们必须依赖。

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.