SGER: Channel Modeling and Adaptive Transmitter/Receiver Design for Outdoor Ultrawideband Communication Systems

SGER：室外超宽带通信系统的信道建模和自适应发射机/接收机设计

• 批准号: 0809612
• 负责人: Alexandra Duel-Hallen
• 金额: --
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-03-15 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0809612&HistoricalAwards=false
• 关键词: SGER; Channel; Modeling; Adaptive; Transmitter

Integrative, Hybrid and Complex SystemsAlexandra Duel-HallenChannel Modeling and Adaptive Transmitter/Receiver Design for Outdoor Ultrawideband Communication SystemsThe objective of this research is to alleviate potential outages in outdoor ultrawideband communications systems due to shadowing and other challenging propagation environments by exploiting the frequency-dependent distortion of individual multipath components. The approach is to create a novel physical model and to use it in testing robust receiver algorithms and adaptive transmission methods for outdoor ultrawideband systems. Intellectual Merit: A novel outdoor ultrawideband channel model that provides typical and challenging data sets and insights required for designing and validating communications methods is developed. Robust low-complexity receivers and adaptive transmission methods for ultrawideband radio frequency channels with frequency dependent propagation gains are investigated. The transformative idea involves transmission of pulses either in the lower (up to 1 GHz) or upper (above 3 GHz) band of the ultrawideband spectrum (as specified by the Federal Communication Commission's mask), depending upon which is stronger. Ultrawideband research to date has focused on transmission of pulses only in the upper band. The benefits and feasibility of selecting different parts of the spectrum adaptively are exploited in this project.Broader impacts: The project advances the state of the art in physical wireless channel modeling and ultrawideband transceiver algorithms. It has the potential to improve physical layer ultrawideband systems and cross-layer wireless network design. This research is an interdisciplinary effort in communication theory, physics, and signal processing. Through thesis and class projects this research will provide diverse graduate and undergraduate students with versatile skills essential for future career success.

综合、混合和复杂系统Alexandra Duel-Hallen室外超宽带通信系统信道建模和自适应发射机/接收机设计本研究的目的是通过利用单个多径分量的频率相关失真来减轻室外超宽带通信系统由于阴影和其他具有挑战性的传播环境而导致的潜在中断。该方法是创建一个新的物理模型，并使用它在测试鲁棒的接收机算法和自适应传输方法的室外超宽带系统。智力优势：一种新型的室外超宽带信道模型，提供了典型的和具有挑战性的数据集和设计和验证通信方法所需的见解。研究了在具有频率相关传播增益的超宽带无线电频率信道中的鲁棒低复杂度接收机和自适应传输方法。变革性的想法涉及在超宽带频谱（如联邦通信委员会的掩码所指定的）的较低（高达1 GHz）或较高（高于3 GHz）频带中传输脉冲，这取决于哪一个更强。迄今为止，超宽带研究集中在仅在上频带中的脉冲的传输上。该项目利用了自适应选择不同频谱部分的好处和可行性。更广泛的影响：该项目推进了物理无线信道建模和超宽带收发器算法的最新技术。它有可能改善物理层超宽带系统和跨层无线网络设计。这项研究是通信理论，物理学和信号处理的跨学科努力。通过论文和课堂项目，本研究将为不同的研究生和本科生提供未来职业成功所必需的通用技能。