Transceiver and Network Technology Developments for Directional Hybrid Wireless Networks

定向混合无线网络的收发器和网络技术开发

• 批准号: 0701738
• 负责人: Christopher Davis
• 金额: --
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-05-01 至 2010-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0701738&HistoricalAwards=false
• 关键词: Transceiver; Network; Technology; Developments; Directional

Integrative, Hybrid and Complex SystemsChristopher C. DavisUniversity of Maryland College ParkTransceiver and Network Technology Developments for Directional Hybrid Wireless NetworksIntellectual Merit: Our prior research, and the research of others, has shown that mobile ad-hoc networks (MANETs) do not scale. Our aim in this research is to prove that a higher communication tier can be created using autonomously configuring directional links in a flexible backbone network that connects MANET-like small clusters in an architecture that is "base-station-like." This research will address important, unsolved research problems in stabilization, pointing, acquisition, tracking (SPAT), bootstrapping, and topology control algorithms needed to make our "hybrid" directional free space optical (FSO) and radio frequency (RF) networks a reality. The research will help to resolve link physics issues that affect the FSO/RF channel, including: (i) fading of the urban hybrid FSO/RF channel; (ii) measurements of temporal and spatial correlation functions on the channel; and (iii) studies of the performance of non-imaging FSO receivers with regard to amelioration of the tip-tilt and beam break-up problems of the FSO channel. We will also build and study new optical wireless nodes with novel design features that make them potentially valuable in indoor optical wireless applications where RF is not desirable because of interference problems, such as in the healthcare industry.Broader Impact: The investigators have a record of involving women and minorities in their research. In addition, undergraduate students regularly participate in the research of the group and contribute to published journal and conference papers. We plan to continue to participate in the University of Maryland MERIT program, an internship program for talented undergraduate students from universities across the United States. We regularly provide year-long Research Practicum experience for seniors from neighboring high schools. Because of the highly visible real engineering carried out by the group, we have many demonstrations that we run at academic open houses held at the University of Maryland each year to attract talented students, especially females and members of under-represented groups, into Electrical and Computer Engineering.

综合、混合和复杂系统christopher C. davis，马里兰大学学院park定向混合无线网络的收发器和网络技术发展智力优势：我们之前的研究以及其他人的研究表明，移动自组织网络（manet）不能扩展。我们在这项研究中的目标是证明，可以通过在灵活的骨干网中自主配置定向链路来创建更高的通信层，该骨干网在“类似基站”的架构中连接类似manet的小集群。这项研究将解决稳定、指向、采集、跟踪（SPAT）、自启动和拓扑控制算法等重要的未解决的研究问题，这些问题需要使我们的“混合”定向自由空间光学（FSO）和射频（RF）网络成为现实。该研究将有助于解决影响FSO/RF信道的链路物理问题，包括：(i)城市混合FSO/RF信道的衰落；（ii）测量航道的时空相关函数；（iii）研究非成像FSO接收机在改善FSO信道的倾斜和波束破裂问题方面的性能。我们还将建立和研究具有新颖设计特征的新型光学无线节点，使其在室内光学无线应用中具有潜在的价值，这些应用由于干扰问题而不需要射频，例如在医疗保健行业。更广泛的影响：调查人员在他们的研究中有涉及妇女和少数民族的记录。此外，本科生定期参与小组的研究，并在期刊和会议上发表论文。我们计划继续参加马里兰大学MERIT项目，这是一个针对美国各地大学有才华的本科生的实习项目。我们定期为邻近高中的高年级学生提供为期一年的研究实习经验。由于该小组所进行的真实工程非常明显，我们每年在马里兰大学举行的学术开放日上进行许多演示，以吸引有才华的学生，特别是女性和代表性不足的群体的成员，进入电气和计算机工程。