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

传统上，物理层（PHY）和网络堆栈的更高层的职责是隔离的，导致带宽有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，使更高层和物理层不能协同工作。本项目探讨了物理信息网络（PHY-IN）框架下的三个方案。1)载波感知多址与碰撞通知（CSMA/CN）机制检测和终止碰撞，脱离现有的基于碰撞避免（CSMA/CA）的方案，如802.11。(2)基于星座的速率（Constellation BAsed Rate， CBAR）自适应方案跳到适合于变化信道的最佳可行速率。3)重映射方案为重传分配位到子载波，以提高其成功的机会。PHY-IN框架具有影响未来无线网络协议格局的潜力。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也将有助于扩大参与和行业合作。

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.