STTR Phase I: Reconfigurable Wireless Platforms for Spectrally Agile Coexistence

这项小型企业技术转让（STTR）第一阶段项目将涉及研究和开发一种可重构无线平台，通过在多个不相交的频率通道上同时传输数据，实现无线频谱的二次访问。特别是，所提出的创新将推进当前非连续正交频分多址（NC-OFDMA）架构领域的最新技术。预期的NC-OFDMA带外发射和传输的峰值平均功率比的减少将大大改善初级和次级无线传输的共存。由此改进的动态频谱接入（DSA）能力将允许更有效地利用有限的频谱资源。拟议的工作将针对802.22无线区域网络开发高吞吐量和强大的硬件实现，802.22无线区域网络是最近批准的采用NC-OFDMA的电气和电子工程师协会（IEEE）标准。这项研究将产生一个NC-OFDMA优化框架，这将有助于塑造该领域的方向，并指导可行的802.22产品的设计。该项目更广泛的影响/商业潜力源于为农村宽带和机器对机器市场开发无线产品的机会。数据通信网络是现代社会接入互联网所需要的，它既提供了必要的服务，又提供了现代化的便利。不幸的是，许多社区，特别是农村，目前缺乏支持这种网络的基础设施，世界上大约有30亿人几乎没有任何无线服务。因此，针对包括802.22在内的高速通信系统在农村地区开展优化NC-OFDMA的研究，将在提供巨大商业化潜力的同时造福社会。拟议活动所产生的优化技术和技术还将为智能电网和传感器网络提供产品，并支持公共安全、应急服务和第一响应者社区努力为网络提供更好的通信接入。

This Small Business Technology Transfer (STTR) Phase I project will involve research on and development of a reconfigurable wireless platform enabling secondary access of wireless spectrum via simultaneous data transmission across several disjoint frequency channels. In particular, the proposed innovations will advance the current state-of-the-art in the area of non-contiguous orthogonal frequency division multiple access (NC-OFDMA) architectures. The anticipated reduction in NC-OFDMA out-of-band emissions and transmitted peak-to-average power ratio will greatly improve the co-existence of primary and secondary wireless transmissions. The resultant improved dynamic spectrum access (DSA) capability will then permit much more efficient use of limited spectrum resources. The proposed work will be targeted towards the development of a high throughput and robust hardware implementation for the 802.22 wireless regional area network, a recently ratified Institute of Electrical and Electronics Engineers (IEEE) standard that employs NC-OFDMA. The research will result in an NC-OFDMA optimization framework that will help shape the direction of this field and guide the design of viable 802.22 products.The broader impact/commercial potential of this project stems from the opportunity to develop wireless products for the rural broadband and machine-to-machine markets. Data communication networks are needed by modern society for access to the Internet, providing both essential services and modern conveniences. Unfortunately, many communities, especially rural, currently lack the infrastructure to support such networks, with roughly three billion people in the world with little if any wireless service. Therefore, conducting research to optimize NC-OFDMA for high-speed communications systems including 802.22 in rural areas will benefit society while providing enormous commercialization potential. The optimization techniques and technology resulting from the proposed activities will also yield products for smart grids and sensor networks and support the public safety, emergency services, and first responder community efforts to provide better communications access to the network.