NeTS: Small: Collaborative: PHY-Informed Networking (PHY-IN): Rethinking Wireless Protocol Design with the Knowledge of PHY

NetS：小型：协作：PHY 通知网络 (PHY-IN)：利用 PHY 知识重新思考无线协议设计

• 批准号: 1430033
• 负责人: Romit Roy Choudhury
• 金额: $ 19万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-08-16 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1430033&HistoricalAwards=false
• 关键词: NeTS; Small; Collaborative; PHY; Informed

Traditionally, there has been an isolation of responsibilities of physical layer (PHY) and higher layers of the network stack leading to severe inefficiencies in bandwidth-limited wireless networks. Remedying these inefficiencies requires rethinking and redesigning wireless protocols such that higher layers and PHY work in synergy. This project explores three schemes under the PHY-Informed Networking (PHY-IN) framework. 1) Carrier Sense Multiple Access with Collision Notification (CSMA/CN) mechanism detects and aborts collisions, breaking away from the existing collision avoidance (CSMA/CA) based schemes such as 802.11. 2) Constellation BAsed Rate (CBAR) adaptation scheme jumps to the best feasible rate suitable for a varying channel. 3) Remap scheme permutes bit-to-subcarrier assignment for a retransmission to improve the chances of its success. The PHY-IN framework has the potential to impact the landscape of future wireless networking protocols. Apart from mentoring both undergraduate and graduate students into independent researchers, this project, involving an EPSCoR university and a research lab, will also help broaden the participation and industry collaboration.

传统上，存在物理层（PHY）和网络栈的更高层的职责的隔离，导致带宽受限的无线网络中的严重低效。要解决这些低效率问题，需要重新思考和重新设计无线协议，以便更高层和PHY协同工作。本计画探讨在物理层资讯网路架构下的三种方案。1)带冲突通知的载波侦听多路访问（CSMA/CN）机制检测并中止冲突，脱离现有的基于冲突避免（CSMA/CA）的方案，诸如802.11。2)基于星座的速率（CBAR）自适应方案跳到适合于变化信道的最佳可行速率。3)重映射方案将比特到子载波的分配置换用于重传以提高其成功的机会。PHY-IN框架有可能影响未来无线网络协议的前景。除了指导本科生和研究生成为独立的研究人员外，这个涉及EPSCoR大学和研究实验室的项目还将有助于扩大参与和行业合作。