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.

我们提出了一种集成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：最小能量通信技术、节能信号处理电子设备、高效射频前端和并发优化方法。我们的目标将通过开发以下研究领域的设计方法来实现： (a) 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，而不是集中于实现信道容量而不需要考虑到复杂性，重点关注最低能耗通信，同时考虑其实施的能耗 (b) 低能耗混合信号电子设备，用于执行数据处理、编码、均衡等基带功能。我们的方法包括两个组成部分：数字逻辑使用开关模式射频进行能量回收电路和非常低功耗的模拟神经硬件。 (c) 高效集成有源天线阵列，具有成倍提高总体直流到辐射载波功率效率的潜力。 我们的方法通过将高效开关模式射频电路与紧凑型天线阵列集成来节省空间和功耗，从而允许增加波束成形等功能，以及 (d) 针对随机参数的并发设计优化，这可以在现有设计中显着降低功耗，并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、功能更强大的无线、手持式、笔记本电脑和车载通信设备。 所开发的技术和设计方法将适用于超过 2500 万美国蜂窝用户以及未来数百万 PCS 用户的移动通信系统。