STTR Phase II: Reconfigurable Wireless Platforms for Spectrally Agile Coexistence

这项小型企业技术转让（STTR）第二阶段项目将涉及研究和开发一种可重构无线平台，通过电视白空间（TVWS）频谱的二次接入，实现农村地区的宽带通信。最近批准的IEEE标准802.22是为TVWS操作提出的最有前途的技术。不幸的是，目前的802.22实现产生了不可接受的带外（OOB）发射水平，极大地降低了主要和次要TVWS用户的性能。目前的设计也不能感觉到其他TVWS用户的存在，这是共存所必需的。这些限制阻碍了802.22解决方案的推出。所提出的工作克服了这些限制，为802.22无线区域网络（WRAN）带来了低成本、高吞吐量和健壮的实现。第二阶段的实验室和现场测试将验证第二阶段开发的用于农村宽带部署的802.22 WRAN原型设备的可行性。本提案中描述的活动将大大促进社区的发展。了解如何使认知无线网络（如802.22）在农村地区提供宽带服务方面实用和有效。该项目的更广泛影响/商业潜力集中在为目前无法接入宽带的1450万农村地区的美国人提供低成本宽带解决方案，同时吸引那些拥有宽带接入但无法负担当前解决方案的高设备和服务成本的农村地区的人。拥有宽带接入的农村社区失业率更低，人均收入更高，教育机会更多。宽带提高了农村地区的医疗保健效率，同时降低了成本。公共安全、应急服务和第一响应者社区也要求采用高数据速率通信，以便更好地预测和应对自然灾害。

This Small Business Technology Transfer (STTR) Phase II project will involve research on and development of a reconfigurable wireless platform enabling broadband communications in rural areas via secondary access of television white spaces (TVWS) spectrum. The recently ratified IEEE standard, 802.22, is the most promising technique proposed for TVWS operation. Unfortunately, current 802.22 implementations create unacceptable levels of out-of-band (OOB) emissions, greatly degrading the performance of both primary and secondary TVWS users. Current designs also fail to sense the presence of other TVWS users as necessary for coexistence. Such limitations have prevented the rollout of 802.22 solutions. The proposed work overcomes these limitations, leading to a low-cost, high throughput, and robust implementation for the 802.22 wireless regional area network (WRAN). Phase II laboratory and field testing will validate the viability of Phase II developed 802.22 WRAN prototype devices for rural broadband deployment. The activities described in this proposal will significantly advance the community?s understanding of methods to make cognitive radio networks such as 802.22 practical and effective in offering broadband services in rural areas.The broader impact/commercial potential of this project centers on offering a low-cost broadband solution to the 14.5 million Americans who live in rural areas currently beyond the reach of broadband access, while appealing to those in rural areas that have broadband access but are unable to afford the high equipment and service costs of current solutions. Rural communities with broadband access have lower unemployment, higher per capita earnings, and greater educational opportunity. Broadband improves rural area healthcare effectiveness while lowering cost. Public safety, emergency service, and first responder communities also call for high data-rate communications to better predict and respond to natural disasters.