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一个综合的研究计划，提出了利用所有可用的模式的多样性在无线信道。 这就需要开发用于以不同模式发射的新型天线、用于利用这些模式的数字接收机以及用于分配这些模式的动态资源分配。 在这项研究中的主要挑战是管理和利用无线通信信道的复杂性和时变的性质，同时满足移动台，基站和网络的功率和带宽限制。 因此，工作强调集成的数字接收机的多址通信与智能天线和动态资源分配。 智能天线在无线信道中激发时间、空间和极化模式。 多用户接收机使用这些模式来解码移动的用户并估计信道参数，动态资源分配器使用这些信道参数来向终端用户提供所需的QoS。30 Ghz），在空间、时间和极化方面灵活的高带宽辐射和接收天线将涉及基于毫米波透镜天线的先前经验的原型的数字建模、设备构造和测试。 利用可用自由度的多址接收机的设计将基于实际设备特性和信道的实际散射模型。 这些接收器将被设计和实现在减少维度的子空间。 这些子空间是通过使用特殊的规范时空坐标系将真实的信道分解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平台进行评估。 所提出的动态网络分配工作的创新方面是在物理层和网络层共享使用信息，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由天线和接收机提供的所有信道模式。 物理层和网络层之间将共享信号干扰噪声比（SINR）和误码率（BER）的估计值，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管理。 这一综合研究计划将影响未来无线通信网络的概念、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：威斯康星州大学、科罗拉多大学和法国的Eurecom，后者因其移动的无线、多媒体、和网络。 由于三所学校之间的工作关系是通过之前的访问、休假和合作建立起来的，因此该合作项目成功的可能性很高。管理计划围绕参与学校实验室之间的定期访问以及在技术边界工作的学生的联合建议而建立。 在这项研究计划中开发的综合观点将被纳入一个新的本科无线通信实验室，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，天线和电磁学现有课程的内容。