SBIR Phase I: Efficiency and Systems Improvements for Public Safety Radio Networks

这项小企业创新研究计划（SBIR）第一阶段项目将对公共安全无线网络（PSRN）进行跨越式改进。在灾难性事件中与通信相关的问题是有据可查的。一个特别值得关注的领域是PSRN的不可靠性。一般来说，在系统需求最大的时候，PSRN的性能最差；在灾难应对的早期阶段。例如，2011年9月1日发布的9-11委员会推荐卡明确指出，第一响应者的PSRN是备灾中的一个主要弱点。此外，在公共安全无线电频带内简单分配额外频谱并不能完全解决问题。考虑到附加到PSRN的独特限制，该项目将通过最小化干扰的有害影响和允许无线系统的优雅降级，提供无线通信带宽效率的跨越式改进。该计划将利用最近开发的射频干扰消除技术，并将其应用于商业无线通信应用。将进一步开发新的资源分配算法。最初的重点将放在公共安全无线网络上，但可以应用于广泛的无线系统。该项目的更广泛的影响/商业潜力是解决对射频带宽的需求，这一需求呈指数级增长。这种需求是由几乎无限的消费者对无线通信服务的需求驱动的。尽管宽带无线接入网络似乎无处不在，但随着无线电频谱变得越来越拥挤，我们正在迅速耗尽带宽。据伯恩斯坦研究公司（Bernstein Research）称，到2015年，对数据流量的需求预计将增长3000%以上。为了适应这种使用量的增加，手机信号塔被安置得更近，从而增加了它们的干扰。此外，联邦通信委员会用一种非常静态的分配方法来管理带宽的使用。因此，大量频谱未被充分利用，而其他部分频谱已经饱和，造成了不必要的瓶颈。拟议的计划将展示将大大提高频谱使用效率的技术。

This Small Business Innovation Research Program (SBIR) Phase I project will develop leap-ahead improvement to public safety radio networks (PSRN). The problems associated with communication during a catastrophic event are well documented. One area of particular concern is the unreliability of PSRN. Generally speaking the PSRN performance is worst when the system is needed most; in the early stages of a disaster response. For example, the 9-11 Commission Recommendation Card released on Sept. 1, 2011, specifically identified the PSRN for first responders as a major weakness in disaster preparedness. Further, the simple allocation of additional spectrum in public safety radio bands will not fully address the problem. Taking into account the unique restrictions attached to PSRN, this project will provide leap-ahead improvement in efficiency of wireless communication bandwidth by minimizing the harmful effects of interference and allowing graceful degradation of wireless systems. The program will utilize recently developed RF interference cancellation technologies and apply them to commercial wireless communication applications. Further new resource allocation algorithms will be developed. The initial focus will be on public safety radio networks, but can be applied a wide range of wireless systems.The broader impact/commercial potential of this project is to address the demand for RF bandwidth which has been growing exponentially. This demand is driven by almost unlimited consumer demand for wireless communication services. Though broadband wireless access networks appear to be ubiquitous, we are rapidly running out of bandwidth as the radio spectrum becomes more crowded. By 2015, the demand for data traffic is expected to increase by over 3000%, according to Bernstein Research. To accommodate such an increase in usage, cell towers are being located closer together, thus increasing their interference. In addition, the Federal Communication Commission regulates bandwidth usage with a very static allocation approach. As a result, large amounts of spectrum are underutilized while other parts of the spectrum are saturated, creating unnecessary bottlenecks. The proposed program will demonstrate technology that will substantially improve the efficiency of spectrum usage.