Collaborative Research: ITR/NGS: Fast Wireless Network Simulation Using Spatio-Temporal Dilations

未来无线网络和服务的设计和开发将需要复杂的模拟和仿真工具，以捕捉构成多层网络堆栈的协议的规模、复杂性和抽象，以及无线和有线互联网的异构性--这些工具目前还不存在。未来的仿真策略必须在支持高保真无线建模环境的同时，捕捉演化协议的异构性。该方案将构建一个全面的集成协议开发环境(IPDE)来支持无线网络协议的设计和开发。这项工作将使研究人员能够在统一的公共领域模拟和仿真环境中设计和开发端到端网络应用。该方案中的两个关键创新将支持未来无线应用的实时测试和仿真，包括(I)相对论时间的概念，其集成了虚拟时间的可控性和实时的自然自同步特性；以及(Ii)空间缩放，其中系统的不同组件将在不同的空间尺度上运行--范围从因特网主干的连续流体流动模型，对实际路由器中的分组数据流进行离散--以分散的方式进行整体空间协调。这种IPDE框架的验证将通过设计和部署用于无线网络调度和控制的多参数自适应算法的形式来进行。通过为网络协议的仿真、硬件仿真和直接代码执行提供一个集成的框架，IPDE将使研究人员能够建立大规模的虚拟试验台，验证其建模，并设计中间件算法。

The design and development of future wireless networks and services will requiresophisticated simulation and emulation tools that captures the scale, complexity, andabstraction of both the protocols that constitute the multi-layered network stack, as wellas the heterogeneous nature of the wireless and wired Internet - tools that currently donot exist. Future simulation strategies must capture the heterogeneity of evolvingprotocols while simultaneously supporting high-fidelity wireless modeling environment.This proposal will build a comprehensive Integrated Protocol Development Environment(IPDE) to support design and development of wireless network protocols. This work will enableresearchers to design and develop end-to-end network applications in a unified public-domain simulation and emulation environment.Two key innovations in this proposal that will empower real time test and emulation offuture wireless applications include (i) the notion of relativistic time, that integrates the controllability of virtual-time with the natural selfsynchronizing property of real-time, and (ii) spatial scaling, wherevarious components of the system will operate at different spatial scales - ranging fromcontinuous fluid flow models for the Internet backbone, to discrete packet data flows inactual routers - with overall spatial coordination occuring in a decentralized manner.Validation of such an IPDE framework will be in the form of the design and deploymentof multiparametric adaptive algorithms for wireless network scheduling and control.By providing an integrated framework for simulation, hardware emulation, and directcode execution of network protocols, the IPDE will enable researchers to setup largescale virtual test-beds, validate their modeling, and design middleware algorithms.