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，网络堆栈的物理层 (PHY) 和更高层的职责是分离的，导致带宽有限的无线网络效率严重低下。解决这些低效率问题需要重新思考和设计无线协议，以便更高层和 PHY 协同工作。该项目探索了 PHY-InformedNetworking (PHY-IN) 框架下的三种方案。 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，脱离了现有的基于冲突避免 (CSMA/CA) 的方案，例如 802.11。 2)星座基速率(CBAR)自适应方案跳转到适合不同信道的最佳可行速率。 3) 重新映射方案对重传的比特到子载波分配进行排列，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格局。除了指导本科生和研究生成为独立研究人员外，该项目涉及 EPSCoR 大学和研究实验室，还将有助于扩大参与和行业合作。