MRI Consortium: Development of Wireless Networking Testbed and Emulator (WiNeTestEr)

项目负责人：Prakash， Ravi & Rajan, Dinesh Banerjee, Bhaskar；米塔尔，尼拉杰，文卡特桑，S。Camp, Joseph, Chen, Jinghong, Gui, PingInstitution(s): University of Texas-Dallas & Southern Methodist University标题：MRI/Dev Consortium：开发无线网络试验台与仿真器（WiNeTestEr）项目建议：本项目拟建立一个多功能无线网络试验台，称为无线网络试验台与仿真器（WiNeTestEr）。该试验台的主要目标和新颖之处在于它的能力——在多个授权和未授权频带中模拟大规模无线网络，——允许本地和远程用户配置和控制相同的模拟器，并提供可重复性，——支持与节点移动性、多天线（MIMO）操作和认知无线电相关的实验。主要的智力挑战是在模拟无线信道的模拟性质和相关的影响，如衰减，多径衰落和多用户干扰的基本困难。为此，该提案提出了模拟多径效应的方法，例如将模拟RF信号从节点转换为数字基带，使用FPGA缓冲一段时间，添加经历不同延迟量的信号的缩放版本，最后将结果信号转换回模拟域。为了模拟多用户干扰，该提案建议将来自不同节点的射频信号馈送到射频合成器中，然后再馈送到接收节点。天线。其他通道的影响也解决了。它计划模拟不同的无线环境，并考虑到多达数百个无线节点的可伸缩性。WiNeTestEr的设计是稳健的，因为它将使用同轴电缆将无线节点连接到模拟它们之间的空中链接的模拟器。这样，网络应该不受实验室和环境中其他设备的干扰。该仪器的使用包括硬件和软件方面的新发展，例如用于模拟各种信道效果的新型宽带射频电路和电路板，可以同时在多个频段上工作的新型射频合并器，以及包括算法设计，并行仿真器进程控制和网络管理的软件工具。

Proposal #: 10-40422 Collaborative with Proposal #: 10-40429PI(s): Prakash, Ravi & Rajan, Dinesh Banerjee, Bhaskar; Mittal, Neeraj, Venkatesan,S. & Camp, Joseph, Chen, Jinghong, Gui, PingInstitution(s): University of Texas-Dallas & Southern Methodist UniversityTitle: MRI/Dev Consortium: Dev. of Wireless Networking Testbed and Emulator (WiNeTestEr) Project Proposed:This project proposes to build a versatile wireless networking testbed called Wireless Networking Testbed and Emulator (WiNeTestEr). The main objectives and the novelty of this testbed is in its capability to - Emulate the large-scale wireless networks in multiple licensed and unlicensed bands, - Allow access to local and remote users to configure and control the same emulator, and provide repeatability,- Support experiments related to node mobility, multi-antenna (MIMO) operation, and cognitive radios, and - Provide an easy-to-use interface for remotely running wireless experiments overThe main intellectual challenge is in fundamental difficulties to emulate the analog nature of wireless channels and the related effects, such as attenuation, multipath fading and multi-user interference. To this end the proposal addresses methods to emulate the multipath effect, such as by converting the analog RF signal from a node into digital baseband, buffer it for a period of time using an FPGA, add scaled versions of the signals that have experienced different amounts of delay, and finally, convert the resulting signal back into the analog domain. To emulate multi-user interference, the proposal suggests that RF signals from different nodes are fed into an RF combiner and then into a receiving node?s antenna. Other channel effects are also addressed. It is planed to emulate different wireless environments with consideration of scalability up to hundreds of wireless nodes. The design of the WiNeTestEr is robust, as it will use coaxial cables to connect the wireless nodes to the emulator which mimics the over-the-air link between them. In this way, the network should be immune to interference from other devices in the laboratory and the environment. The usage of the instrument includes novel developments in both hardware and software, such as new wideband RF circuits and boards for emulation emulate a variety of channel effects, a new RF combiner that can simultaneously operate over multiple bands, and a software tool that includes algorithm design, control of parallel emulator processes, and network management.