# CAREER: Transforming Underwater Networking with Acoustic Reconfigurable Intelligent Surfaces

> **NSF 01002930DB NSF RESEARCH & RELATED ACTIVIT** · University of Alabama Tuscaloosa (AL) · $599,148

## Abstract

Underwater communication is much harder than over-the-air communication. Radio waves do not travel well in water. Underwater systems usually rely on acoustic communication, which uses sound to carry information. However, sound travels much more slowly and can transmit far less information than radio waves, making it difficult for underwater robots, sensors, and vehicles to communicate effectively and reliably. This project studies a new technique called underwater acoustic reconfigurable intelligent surfaces (UA-RIS). These are special panels that can control how sound waves reflect in water, helping signals travel farther and improving the amount of information they can carry. The goal is to build the scientific foundation for smart underwater communication and sensing systems that could support ocean research, environmental monitoring, offshore infrastructure inspection, and maritime security. The project also benefits society by training students, creating open tools and datasets for researchers, and engaging the public through education and outreach activities that encourage interest in ocean technology and engineering.

This project aims to develop the theoretical, algorithmic, and experimental foundation of UA-RIS-assisted underwater networks through three tightly integrated research thrusts. First, it designs and models innovative UA-RIS architectures using coupled electromechanical and acoustic methods, including reflector analysis, propagation modeling, and communi

## Key facts

- **NSF award ID:** 2544545
- **Awardee organization:** University of Alabama Tuscaloosa (AL)
- **SAM.gov UEI:** RCNJEHZ83EV6
- **PI:** Lina Pu
- **Primary program:** 01002930DB NSF RESEARCH & RELATED ACTIVIT
- **All programs:** AWR-Advanced Wireless Research, CAREER-Faculty Erly Career Dev, RES IN NETWORKING TECH & SYS, EXP PROG TO STIM COMP RES
- **Estimated total:** $599,148
- **Funds obligated:** $357,859
- **Transaction type:** Continuing Grant
- **Period:** 07/01/2026 → 06/30/2031

## Primary source

NSF Award Search: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2544545

## Citation

> US National Science Foundation, Award 2544545, CAREER: Transforming Underwater Networking with Acoustic Reconfigurable Intelligent Surfaces. Retrieved via AI Analytics 2026-06-06 from https://api.ai-analytics.org/grant/nsf/2544545. Licensed CC0.

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