CISE EAGER: Achieving Realism in ns-3 Wireless Network Simulation

网络仿真仍然是无线网络协议栈性能评估的一个不可或缺的工具，因为它能够探索细粒度的因果输入输出关系和网络可扩展性方面，不能通过其他手段容易地研究。该项目将为ns-3（网络研究中最常用的开源模拟工具）添加急需的成分，并在重要方面扩展其功能，使其超越可比的商业工具。网络仿真方法面临着一个基本的困境-增加现实主义只会带来更大的模拟器复杂性。所提出的途径提供了实现适当平衡的最佳、最现实的方法。该议程广泛地集中在一个新的无线协议栈库，有效地结合跨层设计方法，捕获层1-2的参数和层3-4的协议元素之间的耦合。此外，耦合模拟仿真方法，平衡前者（软件模拟）的灵活性与后者（试验台或仿真器）的保真度将使新的设计和性能分析技术。所有免费软件将通过ns-3网站（www.nsnam.org）在通常的GPL下传播，并通过会议和研讨会上的教程进行宣传。

Network simulation continues to be an indispensable tool for performance evaluation of wireless network protocol stacks for it's ability to explore fine-grained causal input-output relations and network scalability aspects, that cannot be readily studied by other means. This project will add much needed ingredients to ns-3 (the most commonly used open source simulation tool for networking research) and extend its capabilities beyond those in comparable commercial tools in important ways. Network simulation methodologies face a fundamental dilemma - increased realism only comes with greater simulator complexity. The pathways proposed provide the best, most realistic approaches to achieving a proper balance. The agenda broadly concentrates on a new wireless protocol stack library that efficiently incorporates cross-layer design approaches that capture the coupling between parameters at Layers 1-2 and protocol elements at Layers 3-4. Further, coupled simulation-emulation approaches that balance the flexibility of the former (software simulation) with the fidelity of the latter (testbed or emulator) will enable new design and performance analysis techniques. All freeware will be disseminated via the ns-3 website (www.nsnam.org) under usual GPL and publicized via tutorials at conferences and workshops.