SBIR Phase II: Adaptive/Cognitive Software Radio Architecture for Gbps+ Wireless Networking

SBIR 第二阶段：用于 Gbps 无线网络的自适应/认知软件无线电架构

• 批准号: 0620588
• 负责人: David Fogelsong
• 金额: $ 50万
• 依托单位: Silvus Technologies, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-08-15 至 2008-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0620588&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Adaptive; Cognitive

This Small Business Innovation Research Phase II project will develop interference-mitigating technology for wireless networks. The traditional 802.11 WLAN systems that have been used for data communications are becoming ubiquitous. The next generation of these systems will be relied upon for video distribution, metropolitan networking, as well as a host of other applications that are as yet undefined. They must achieve aggregate network throughput rates in excess of one Gbps while operating in the unlicensed ISM bands. This, however, must be done in the face of ever increasing interference in the bands that in turn pose a serious threat to continued market growth. The current effort will address the interference problem by successfully combining novel spectrum sensing and cognitive approaches (observe, learn, react) with a host of powerful PHY, MAC, and combined PHY-MAC protocols. This effort will look to heavily leverage a new tool in the arsenal, namely that of multiple antennae enabled nodes that are included in the major Wi-Fi and WiMax standards. The FCC revolutionized the wireless industry by opening up the unlicensed ISM bands. These bands reduce the barrier to entry for companies to introduce wireless services to niche markets without the expense and delays associated with obtaining a proprietary licensed band. The price paid for utilization of the ISM bands is interference. Traditionally these bands have been sparsely occupied, however, with ever increasing adoption of WLANs, and the emergence of WiMax and metropolitan networking in this band, interference is going to increase in significance. If successful, the current effort will allow high utilization of the ISM bands for high throughput high fidelity applications, and will help ensure low price wireless access to the society at large.

这个小企业创新研究第二阶段项目将为无线网络开发干扰抑制技术。用于数据通信的传统 802.11 WLAN 系统正在变得无处不在。下一代这些系统将用于视频分发、城域网络以及许多尚未定义的其他应用。当在未经许可的 ISM 频段运行时，它们必须实现超过 1 Gbps 的聚合网络吞吐率。然而，面对不断增加的频段干扰，这反过来又对市场的持续增长构成严重威胁，必须这样做。当前的工作将通过成功地将新颖的频谱感知和认知方法（观察、学习、反应）与大量强大的 PHY、MAC 和组合 PHY-MAC 协议相结合来解决干扰问题。这项工作将大力利用武器库中的一个新工具，即主要 Wi-Fi 和 WiMax 标准中包含的支持多个天线的节点的工具。 FCC 通过开放未经许可的 ISM 频段彻底改变了无线行业。这些频段降低了公司向利基市场引入无线服务的进入壁垒，而无需支付与获得专有许可频段相关的费用和延迟。使用ISM频段所付出的代价是干扰。传统上，这些频段被稀疏地占用，然而，随着 WLAN 的不断普及，以及 WiMax 和城域网络在该频段的出现，干扰的重要性将会增加。 如果成功，当前的努力将允许高吞吐量高保真应用中 ISM 频段的高利用率，并将有助于确保整个社会的低价无线接入。