EARS: Cross Layering in Full Duplex - from Integrated Circuits to Networking

EARS：全双工的交叉分层 - 从集成电路到网络

• 批准号: 1547406
• 负责人: Gil Zussman
• 金额: $ 60万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-09-15 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1547406&HistoricalAwards=false
• 关键词: EARS; Cross; Layering; Full; Duplex

The exponential growth of wireless traffic calls for the design of spectrum-efficient communication schemes. Existing wireless systems are half-duplex, where the separation of a users transmitted and received signal in either frequency or time causes inefficient utilization of the limited spectrum. An emerging and transformative communication technology that can substantially improve spectrum efficiency is Full-Duplex communication, namely, simultaneous transmission and reception on the same frequency channel. The fundamental challenge associated with Full-Duplex communication, however, is the extremely powerful transmitter self-interference, or echo, that can overwhelm the receiver. Full-Duplex operation, therefore, requires the cancellation of the self-interference at the receivers. Despite recent progress in the development of laboratory bench-top Full-Duplex transceiver implementations, these designs utilize bulky off-the-shelf components and are not suitable for compact Integrated Circuit implementations necessary for commercial small-form-factor mobile applications. Moreover, fully utilizing the benefits of Full-Duplex communication calls for a fundamental redesign of the higher layer protocols. This interdisciplinary project directly addresses the important cross-layer challenges stemming from the need to design compact Full-Duplex transceiver Integrated Circuits and to jointly design the Medium Access Control and Physical layers, while taking into account the Full-Duplex Integrated Circuit characteristics. In particular, a main component of the project is the development of next-generation Full-Duplex transceiver Integrated Circuits that meet the challenging requirements. Another major component is obtaining fundamental understanding of the impact of Full-Duplex Integrated Circuit transceivers, designed for small form factor nodes, on algorithm and Medium Access Control layer design as well as on network capacity. Hence, the main activities include: (i) developing new Full-Duplex transceiver concepts and Integrated Circuits that simultaneously achieve self interference cancellation and robustness to the new interference mechanisms that arise from widely-deployed Full Duplex operation, (ii) deriving realistic models for recently developed Full-Duplex canceller Integrated Circuits and developing adaptive algorithms for physical layer cancellation, (iii) developing algorithms for power control, channel allocation, and scheduling, and studying the resulting Full-Duplex capacity gains (under realistic models), and (iv) understanding the design considerations of Full-Duplex Medium Access Control protocols for random access networks (e.g., Wi-Fi) and for small-cell cellular networks. The developed algorithms will have a strong theoretical foundation and will be evaluated in a unique software-defined Full-Duplex testbed composed of the custom-designed Full-Duplex transceivers developed within the project. On a societal scale, enabling Full-Duplex operation and improving spectrum utilization will contribute to wireless applications in the areas of disaster recovery, healthcare, and public safety. The broader impacts also include major outreach activities involving local high school students and aiming at broadening the participation of women and underrepresented minorities; incorporation of new theory and design techniques into undergraduate and graduate classes; dissemination of the results through the literature and conferences; and technology transfer to industry.

无线流量的指数增长需要设计频谱有效的通信方案的设计。现有的无线系统是半双链系统，其中用户分离以频率或时间原因导致有限频谱的利用率效率低下。一种可以大大提高频谱效率的新兴和变革性通信技术是全双工通信，即同时在同一频道上进行传输和接收。然而，与全双工通信相关的基本挑战是极强大的发射器自我干扰或回声，它会压倒接收器。因此，全双工操作需要取消接收器的自我干扰。尽管实验室台式全双工收发器实施的开发最近进展，但这些设计利用了笨重的现成组件，并且不适合用于商业小型小型移动应用所需的紧凑型集成电路实现。此外，充分利用全双工通信的好处，要求对高层协议的基本重新设计。这个跨学科的项目直接解决了由于需要设计紧凑的全双工集成电路并共同设计中等访问控制和物理层的重要跨层挑战，同时考虑了全双工集成电路特性。特别是，该项目的主要组成部分是开发下一代全双工收集器综合电路，这些电路满足了具有挑战性的要求。另一个主要组成部分是对全双工集成电路收发器的影响进行基本理解，该电路收发器（专为小型尺寸节点，算法和中等访问控制层设计以及网络容量）的影响。因此，主要活动包括：（i）开发新的全双工收发器概念和集成电路，这些电路同时实现了自我干扰的取消和鲁棒性，对新的干扰机制产生的新干扰机制，这些机制由广泛剥夺的完整双层操作，（II）为现实的模型提供现实的模型最近开发了全双工canceller集成电路和开发用于物理层取消的自适应算法，（iii）开发用于电力控制，渠道分配和调度的算法，并研究了所得的全甲板容量增长（在现实模型下）和（iv ）了解随机访问网络（例如Wi-Fi）和小细胞蜂窝网络的全双工中型访问控制协议的设计考虑。已开发的算法将具有强大的理论基础，并将通过独特的软件定义的全双工测试床进行评估，该完整设计床由项目中开发的自定义设计的全双工收发器组成。在社会规模上，实现全双工运营和改进的频谱利用率将有助于无线应用，在灾难恢复，医疗保健和公共安全领域。更广泛的影响还包括涉及当地高中生的重大外展活动，并旨在扩大妇女和代表性不足的少数民族的参与；将新理论和设计技术纳入本科和研究生班；通过文献和会议传播结果；和技术转移到工业。