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: 1018369
• 负责人: Romit Roy Choudhury
• 金额: $ 24万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2014-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1018369&HistoricalAwards=false
• 关键词: NeTS; Small; Collaborative; PHY; Informed

Traditionally, there has been an isolation of responsibilities ofphysical layer (PHY) and higher layers of the network stack leading tosevere inefficiencies in bandwidth-limited wirelessnetworks. Remedying these inefficiencies requires rethinking andredesigning wireless protocols such that higher layers and PHY work insynergy. This project explores three schemes under the PHY-InformedNetworking (PHY-IN) framework. 1) Carrier Sense Multiple Access withCollision Notification (CSMA/CN) mechanism detects and abortscollisions, 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 fora varying channel. 3) Remap scheme permutes bit-to-subcarrierassignment for a retransmission to improve the chances of its success.The PHY-IN framework has the potential to impact the landscape offuture wireless networking protocols. Apart from mentoring bothundergraduate and graduate students into independent researchers, thisproject, involving an EPSCoR university and a research lab, will alsohelp broaden the participation and industry collaboration.

传统上，物理层（PHY）和网络堆栈的更高层的职责是隔离的，这导致带宽受限的无线网络效率严重低下。要解决这些低效率问题，需要重新思考和设计无线协议，使更高层和物理层协同工作。本计画探讨三个方案下的物理信息网络（PHY-IN）的框架。1)带冲突通知的载波侦听多路访问（CSMA/CN）机制检测和中止冲突，脱离现有的基于冲突避免（CSMA/CA）的方案，例如802.11。2)基于星座的速率（CBAR）自适应算法在信道变化的情况下跳到最佳可行速率. 3)重映射方案通过改变比特到子载波的分配来提高重传的成功率，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，这个项目，涉及EPSCoR大学和研究实验室，也将有助于扩大参与和行业合作。