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

提出了利用无线信道中所有可用的分集模式的综合研究方案。这就要求开发新型天线以实现不同模式的传输，开发利用这些模式的数字接收器，以及动态资源分配。本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特性，同时满足移动设备、基站和网络的功率和带宽限制。因此，该工作强调多址通信的数字接收机与智能天线和动态资源分配的集成。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。基于先前毫米波透镜天线的经验，高频（例如30 Ghz）、高带宽辐射和接收天线的设计将涉及数值建模、器件构建和原型测试。该天线在空间、时间和极化方面都很灵活。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。这些接收器将在降维子空间中设计和实现。这些子空间是通过将真实信道分解为虚拟分集信道的并行组合，使用一个特殊的规范时空坐标系生成的。这些设计将使用软件无线电测试平台进行评估，该平台目前正在Eurecom开发中。提出的动态网络分配工作的创新之处在于在物理层和网络层共享信息，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器提供的所有信道模式。信号干扰加噪声比（SINR）和误码率（BER）的估计将在物理层和网络层之间共享，以跨不同信道模式动态分配功率和带宽，同时保持信令和接收器复杂性可管理。这一综合研究计划将影响未来无线通信网络的概念、发展和实现。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，后者因其创新的移动无线、多媒体和网络集成而获得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已经通过之前的访问、休假和合作建立起来。管理计划是围绕参与学校的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的。本研究计划所发展的综合观点将被纳入新的本科无线通讯实验室、研究生座谈会课程和无线通讯阅读课程。这项工作将影响通信、信号处理、网络、天线和电磁学等现有课程的内容

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.***