SBIR Phase I: Beam Steering Full Duplex Wireless Systems

该项目的更广泛影响/商业潜力是使无线频谱得以有效利用。在过去的十年中，世界上移动设备的数量和多样性急剧增加。随着移动设备的激增，获取频谱已成为影响公民日常生活的首要问题。随着物联网（IoT）的迅速普及，将我们日常生活中与之互动的一切联系起来，预计未来几年需求将呈指数级增长。根据该项目开发的技术将允许通信设备在同一频率上同时收听和广播，从而通过全双工（FD）模式有效地将频谱利用率提高一倍。通过提高频谱效率和简化频率规划，该项目的成果将为移动设备的快速设计、开发和部署提供新的范例。整个社会将受益于由强大、频谱高效的通信设备支持的应用程序的增加。此外，宝贵的频谱资产将被释放，并可以重新定向，以创造新的增长机会。这个小企业创新研究第一阶段项目将展示一个实用的全双工通信系统原型。该项目的目标是开发一个功能原型，展示快速取消的能力，在适合户外部署的传输功率下实现可靠的全双工操作。虽然全双工已被证明可以在静态信道条件下实现，但在动态信道中保持发射和接收路径之间所需的隔离是困难的，这主要是由于射电系统的高反射功率会限制其性能。通过部署新颖有效的抵消方法，原型机将能够跟踪和补偿在FD系统的辐射空间中出现的移动目标。创新的协同设计空间、模拟和数字方法将用于收敛最优的对消参数，同时确保快速响应时间。本项目提出的所有算法都将在实时fd原型系统上进行测试，并在真实的无线信道条件下进行测试，以确保考虑到实际问题。

The broader impact/commercial potential of this project is to enable the efficient use of wirelessspectrum. Over the last decade, the world has seen a sharp increase in the number and diversityof mobile devices. With this surge in mobile devices, access to spectrum has become anoverarching issue impacting the everyday life of citizens. The demand is expected to growexponentially in the coming years, with the rapid adoption of the Internet of Things (IoT) linkingeverything we interact with in daily life. The technology developed under this project will allowcommunication devices to listen and broadcast simultaneously, on the same frequency, thuseffectively doubling spectrum utilization by operating in Full Duplex (FD) mode. By improvingspectral efficiency and simplifying frequency planning, the results from this project will enablenewer paradigms for the rapid design, development and deployment of mobile devices. Societyas a whole will benefit from the increased array of applications enabled by robust, spectrallyefficient communication devices. Furthermore, valuable spectrum assets will be released and canbe redirected to create new opportunities for growth.This Small Business Innovation Research Phase I project will demonstrate a practical Full-duplexcommunication system prototype. The goal of the project is to develop a functional prototypeshowing the ability of fast cancellation that enables reliable full duplex operation at transmitpowers suitable for outdoor deployment. While Full Duplex has been shown to be achievableunder static channel conditions, maintaining the desired isolation between transmit and receivepath in a dynamic channel is difficult, mainly due to the high level of reflected power into theradio system that can limit its performance. By deploying novel and efficient cancellationmethodologies the prototype will be able to track and compensate for moving targets as theyappear in the radiation space of the FD system. Innovative co-designed spatial, analog and digitalapproaches will be used to converge on the optimal parameters for cancellation, while ensuringa rapid response time. All proposed algorithms under this project will be tested on a real-time FDprototype system, under realistic wireless channel condition, to ensure that practical issues areaccounted for.