Collaborative Research: Virtual Full-Duplex Wireless Networking

合作研究：虚拟全双工无线网络

• 批准号: 1231806
• 负责人: Martin Haenggi
• 金额: $ 15万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1231806&HistoricalAwards=false
• 关键词: Collaborative; Research; Virtual; Full; Duplex

Objective:The objective of this project is to lay a theoretical foundation for all aspects of virtual full-duplex wireless networks and to build prototypes using readily available software-defined radios and evaluate the performance. Commercial and military radios of today are half-duplex and cannot transmit and receive simultaneously over the same frequency band due to overwhelming self-interference. This project challenges the paradigm by proposing full-duplex and virtual full-duplex design of the physical, medium access control and network layers based on emerging technologies.One key technique, called rapid on-off-division duplex, allows all nodes to transmit and receive simultaneously by choosing an on-off mask and letting each node transmit through the on-slots and receive over the off-slots. Over a single frame, every node can simultaneously broadcast a message to all neighboring nodes and receive a message from every neighbor at the same time. The transformative solution removes a major constraint on the transmission schedule and thereby increases the throughput and decreases network overhead.Intellectual merit:The intellectual merit lies in transformative network architectures and designs that enable nodes to transmit and receive information at the same time, contrary to conventional wisdom of separating transmission and receptions in time and/or frequency. This challenging research will draw from and, in turn, add to, communication theory, signal processing, information theory, and network theory.Broader impacts:The broader impacts are radically new wireless standards with robust and significantly improved performance, involving undergraduate and graduate students in cutting-edge research, and integrating new research results into the curricula.

目标：该项目的目标是为虚拟全双工无线网络的各个方面奠定理论基础，并使用现成的软件定义无线电构建原型并评估性能。当今的商用和军用无线电是半双工的，由于压倒性的自干扰，无法在同一频段上同时发送和接收。 该项目挑战了这一范式，提出了基于新兴技术的物理层、介质访问控制和网络层的全双工和虚拟全双工设计。一项称为快速开断双工的关键技术允许所有节点传输和通过选择开关掩码并让每个节点通过内时隙发送并通过外时隙接收来同时接收。在单个帧上，每个节点可以同时向所有邻居节点广播消息，并同时从每个邻居接收消息。 变革性解决方案消除了传输调度的主要限制，从而提高了吞吐量并降低了网络开销。 智能优势：智能优势在于变革性网络架构和设计，使节点能够同时传输和接收信息，这与传统的网络架构相反在时间和/或频率上分离传输和接收的智慧。这项具有挑战性的研究将借鉴并补充通信理论、信号处理、信息论和网络理论。更广泛的影响：更广泛的影响是全新的无线标准，其性能稳健且显着提高，涉及本科生和研究生进行前沿研究，并将新的研究成果融入课程中。