This research proposal aims to establish a direct air-water communication link using laser light that can adapt to water dynamics and steer within a 3D hemisphere. The proposed system uses ultrasonic sensing to adapt to water movements and a MEMS mirror to steer laser transmission in 3D. In experiments, the system achieved static throughputs up to 5.04 Mbps over ranges up to 6.1 meters in ambient light, and connection time improvements between 47.1-29.5% during waves. The proposal will address challenges of the air-water interface and environment through testing, design, and implementation of the laser-based communication system.

1. Sir Syed CASE
WIRELESS COMMUNICATION
SEMESTER RESEARCH PROPOSAL
SUBMITTED TO SUBMITTED BY
Sir Mian Jehan Zeb Salman Asif Cheema
Sp2021-MSEE-013

2. AIR-WATER DIRECT COMMUNICATION LINK USING LASER LIGHT
Abstract. Air-water communication is fundamental for efficient underwater operations,
such as environmental monitoring, surveying, or coordinating of heterogeneous aerial and
underwater systems. Existing wireless techniques mostly focus on a single physical
medium and fall short in achieving high bandwidth bidirectional communication across
the air-water interface. We propose a bidirectional, direct air-water wireless
communication link based on laser light, capable of (1) adapting to water dynamics with
ultrasonic sensing and (2) steering within a full 3D hemisphere using only a MEMS mirror
and passive optical elements. In real-world experiments, our system achieves static
throughputs up to 5.04 Mbps, zero-BER transmission ranges up to 6.1 m in strong
ambient light conditions, and connection time improvements between 47.1% and 29.5%
during wave dynamics.
Aim. Proposing solution to overcome challenges posed by air, water and other
environmental factors in communication framework.
Methodology
Testing
Implementation
Design
Requirement