Integrated Antennas, Receivers, and Networks for Mobile, Wireless Communication

用于移动无线通信的集成天线、接收器和网络

• 批准号: 9979400
• 负责人: Louis Scharf
• 金额: $ 38.85万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-15 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9979400&HistoricalAwards=false
• 关键词: Integrated; Antennas; Receivers; Networks; Mobile

9979400ScharfAn integrated program of research is proposed for exploiting all available modes of diversity in the wireless channel. This requires the development of novel antennas for transmitting in diverse modes, digital receivers for exploiting these modes, and dynamic resources allocations for assigning them. The primary challenges in this research are to manage and exploit the complex and time varying nature of the wireless communication channel, while meeting the power and bandwidth constraints of mobiles, base stations and networks. Hence, the work emphasizes integration of digital receivers for multiaccess communication with smart antennas and dynamic resource allocation. The smart antenna excites the temporal, spatial, and polarizational modes in the wireless channel. The multiuse receiver uses these modes to decode mobile users and to estimate channel parameters, which are used by the dynamic resource allocator to provide the required QoS to end users.The design of a high frequency (e.g., 30 Ghz), high bandwidth radiating and receiving antenna which is agile in space, time, and polarization will involve numerical modeling, device construction, and testing of a prototype, based on prior experience with millimeter wave lens antennas. The design of multiaccess receivers which exploit available degrees of freedom will be based on actual device characteristics and on realistic scattering models for the channel. These receivers will be designed and implemented in reduced dimension subspaces. These subspaces are generated by resolving the real channel into a parallel combination of virtual diversity channels, using a special canonical space-time coordinate system. The designs will be evaluated using the software radio testbed currently under development at Eurecom.. The innovative aspect of the proposed dynamic network allocation work is the shared use of information at the physical and network layers to jointly optimize the use of channel and network resources for ensuring QoS. Dynamic resource allocation will exploit all the channel modes made available by the antennas and receivers. Estimates of signal to interference plus noise ratio (SINR) and bit error rate (BER) will be shared between the physical and network layers to dynamically allocate power and bandwidth across different channel modes, while keeping signaling and receiver complexity manageable. This integrated research program will influence the conception, development, and implementation of future wireless communication networks.A key element of this project is the integration of student and faculty research activities at three universities: the University of Wisconsin, the University of Colorado, and Eurecom in France, the later a recipient of an IEEE Education Award for its innovative integration of mobile wireless, multimedia, and networking. The likelihood of success I this collaborative program is high, because working relationships between the three schools have been established through prior visits, sabbaticals, and collaborations.The management plan is built around regular visits between laboratories at the participating schools, and joint advising of students working at technology boundaries. The integrated perspective developed in this research program will be incorporated into a new undergraduate wireless communication laboratory, a graduate colloquium course, and a wireless communication reading course. This work will impact the content of existing courses in communications, signal processing, networks, antennas, and electromagnetics.***

9979400Scharf 提出了一项综合研究计划，用于开发无线信道中所有可用的分集模式。 这需要开发用于以多种模式进行传输的新型天线、用于利用这些模式的数字接收器以及用于分配它们的动态资源分配。 这项研究的主要挑战是管理和利用无线通信信道的复杂性和时变性，同时满足移动设备、基站和网络的功率和带宽限制。 因此，这项工作强调将用于多路访问通信的数字接收机与智能天线和动态资源分配相集成。 智能天线激发无线信道中的时间、空间和极化模式。 多用途接收器使用这些模式对移动用户进行解码并估计信道参数，动态资源分配器使用这些参数向最终用户提供所需的 QoS。在空间、时间和极化方面灵活的高频（例如 30 Ghz）、高带宽辐射和接收天线的设计将涉及基于毫米波的先前经验的数值建模、设备构建和原型测试 透镜天线。 利用可用自由度的多路访问接收器的设计将基于实际设备特性和信道的实际散射模型。 这些接收器将在降维子空间中设计和实现。 这些子空间是通过使用特殊的规范时空坐标系将真实信道解析为虚拟分集信道的并行组合来生成的。 这些设计将使用 Eurecom 目前正在开发的软件无线电测试台进行评估。所提议的动态网络分配工作的创新之处在于共享物理层和网络层的信息，以共同优化信道和网络资源的使用，以确保 QoS。 动态资源分配将利用天线和接收机可用的所有信道模式。 信号干扰加噪声比 (SINR) 和误码率 (BER) 的估计值将在物理层和网络层之间共享，以便在不同信道模式之间动态分配功率和带宽，同时保持信令和接收机复杂性可控。 这一综合研究计划将影响未来无线通信网络的构想、开发和实施。该项目的一个关键要素是整合三所大学的学生和教师研究活动：威斯康星大学、科罗拉多大学和法国的 Eurecom，后者因其移动无线、多媒体和网络的创新集成而获得 IEEE 教育奖。 这个合作项目成功的可能性很高，因为三所学校之间的工作关系是通过先前的访问、休假和合作建立的。管理计划是围绕参与学校的实验室之间的定期访问以及为技术边界工作的学生提供联合建议而制定的。 该研究项目中开发的综合视角将被纳入新的本科生无线通信实验室、研究生座谈会课程和无线通信阅读课程。 这项工作将影响通信、信号处理、网络、天线和电磁学方面的现有课程内容。***