NSF Award
1017871
Traditionally, there has been an isolation of responsibilities of<br/>physical layer (PHY) and higher layers of the network stack leading to<br/>severe inefficiencies in bandwidth-limited wireless<br/>networks. Remedying these inefficiencies requires rethinking and<br/>redesigning wireless protocols such that higher layers and PHY work in<br/>synergy. This project explores three schemes under the PHY-Informed<br/>Networking (PHY-IN) framework. 1) Carrier Sense Multiple Access with<br/>Collision Notification (CSMA/CN) mechanism detects and aborts<br/>collisions, breaking away from the existing collision avoidance<br/>(CSMA/CA) based schemes such as 802.11. 2) Constellation BAsed Rate<br/>(CBAR) adaptation scheme jumps to the best feasible rate suitable for<br/>a varying channel. 3) Remap scheme permutes bit-to-subcarrier<br/>assignment for a retransmission to improve the chances of its success.<br/>The PHY-IN framework has the potential to impact the landscape of<br/>future wireless networking protocols. Apart from mentoring both<br/>undergraduate and graduate students into independent researchers, this<br/>project, involving an EPSCoR university and a research lab, will also<br/>help broaden the participation and industry collaboration.
