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: 1017276
• 负责人: Srihari Nelakuditi
• 金额: $ 18.5万
• 依托单位: University South Carolina Research Foundation
• 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 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1017276&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，在带宽受限的无线网络中，物理层(PHY)和更高层的网络堆栈的责任一直是相互隔离的，导致效率严重低下。要弥补这些效率低下的问题，需要重新思考和重新设计无线协议，使高层和物理层不能协同工作。本项目探索了PHY-信息网(PHY-IN)框架下的三个方案。1)具有冲突通知的载波侦听多路访问(CSMA/CN)机制检测并中止冲突，脱离了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)自适应方案跳跃到适合于变化的信道的最佳可行速率。3)重映射方案通过置换比特到副载波的分配来提高重传的成功率，PHY-IN框架具有潜在的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，这个项目，包括一所EPSCoR大学和一个研究实验室，也将有助于扩大参与和行业合作。