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

这个小型企业创新研究计划(SBIR)第一阶段项目将对公共安全无线电网络(PSRN)进行跨越式改进。灾难性事件期间与通信相关的问题都有很好的记录。一个特别令人关切的领域是PSRN的不可靠性。一般来说，在最需要系统的时候，PSRN的性能最差；在灾难响应的早期阶段。例如，9月1日发布的9-11委员会推荐卡。2011年1月1日，特别指出第一批应急人员的PSRN是备灾工作的一个主要弱点。此外，简单地在公共安全无线电频段分配额外频谱并不能完全解决问题。考虑到PSRN附带的独特限制，该项目将通过将干扰的有害影响降至最低并允许无线系统正常降级来实现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，并将它们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。最初的重点将是公共安全无线电网络，但可以应用于广泛的无线系统。这个项目的更广泛的影响/商业潜力是解决一直在指数级增长的射频带宽需求。这一需求是由消费者对无线通信服务的几乎无限需求推动的。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更加拥挤，我们的带宽正在迅速耗尽。根据Bernstein Research的数据，到2015年，数据流量的需求预计将增长超过3000%。为了适应这种使用量的增加，蜂窝基站的位置越来越近，从而增加了它们的干扰。此外，联邦通信委员会通过非常静态的分配方法来管理带宽使用。其结果是，大量频谱未得到充分利用，而频谱的其他部分已饱和，造成了不必要的瓶颈。拟议的计划将展示将大幅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.