High-Performance, Low-Power Wireless Communication

高性能、低功耗无线通信

• 批准号: 9725778
• 负责人: Mahesh Varanasi
• 金额: $ 105.47万
• 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: 1997
• 资助国家: 美国
• 起止时间: 1997-09-15 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9725778&HistoricalAwards=false
• 关键词: Performance; Low; Power; Wireless; Communication

We propose an integrated approach to minimizing power consumption of high-performance wireless communication systems. Our interdisciplinary approach will simultaneously address key levels of system design: minimum-energy communication techniques, energy-efficient signal processing electronics, high efficiency RF front-ends, and concurrent optimization methods. Our objective will be reached by developing design methodologies in the following research areas: (a) Modulation, detection, equalization, diversity, and resource allocation techniques for time and code-division multiple-access channels, which instead of concentrating on achieving channel capacity without regard to complexity, focus on minimum-energy communications while accounting for energy consumption for their implementation (b) Low-energy mixed-signal electronics to perform baseband functions such as data processing, coding, equalization etc. Our approach includes two components: digital logic with energy recovery using switch-mode RF circuits, and very low-power analog neural hardware. (c) High-efficiency integrated active antenna arrays, with a potential for manifold increase in overall DC to radiated carrier power efficiency. Our approach saves space and power by integrating high-efficiency switch-mode RF circuits with compact antenna arrays, allowing added functionality such as beam forming and (d) Concurrent design optimization over stochastic parameters, which can yield significantly lower power consumption in existing designs, and can take further advantage of the above methodologies. These savings will yield smaller, lighter, more reliable, and more capable wireless, hand-held, lap-top, and vehicular communication devices. The developed technologies and design methodologies will apply to mobile communication systems for the more than 25 million U.S. cellular subscribers as well as the millions of PCS subscribers over the horizon.

我们提出了一种综合的方法来最大限度地减少高性能无线通信系统的功耗。 我们的跨学科方法将同时解决系统设计的关键层面：最低能耗通信技术，节能信号处理电子器件，高效RF前端和并行优化方法。我们的目标将通过在以下研究领域开发设计方法来实现：（a）用于时分和码分多址信道的调制、检测、均衡、分集和资源分配技术，这些技术不是集中于实现信道容量而不考虑复杂性，注重最低能耗通信，同时考虑其实施的能耗（B）我们的方法包括两个组成部分：数字逻辑与能量恢复使用开关模式RF电路，和非常低功耗的模拟神经硬件。(c)高效率集成有源天线阵列，具有整体DC到辐射载波功率效率的多方面增加的潜力。 我们的方法通过将高效率开关模式RF电路与紧凑的天线阵列集成来节省空间和功率，允许增加诸如波束形成的功能，以及（d）随机参数上的并行设计优化，这可以在现有设计中产生显著更低的功耗，并且可以进一步利用上述方法。 这些节省将产生更小，更轻，更可靠，更强大的无线，手持，笔记本电脑和车载通信设备。 开发的技术和设计方法将应用于超过2500万美国蜂窝用户以及未来数百万PCS用户的移动的通信系统。