Abstract:
Specialized solutions are required due to the growing complexity of underwater communication, especially in Deep Water applications where traditional approaches are hindered by signal attenuation and noise. The goal of this work is to determine the optimal modulation strategy for dependable and clear data transmission by analyzing Low Noise Acoustic Transducer of Deep Water Echo Sounder. The techniques examined include Frequency Shift Keying (FSK), Phase Shift Keying (PSK), Pulse Position Modulation (PPM), and Orthogonal Frequency Division Multiplexing (OFDM), all of which were evaluated within the frequency range of 3-12 KHz. MATLAB was utilized to simulate these techniques under varying levels of Gaussian noise, and their performance was measured in terms of Bit Error Rate (BER) across different Signal-to-Noise Ratios (SNR). The study made use of empirical data from the simulations as well as a thorough analysis of the most recent literature on underwater communication devices. The findings show that OFDM is the most effective in using spectrum efficiently and is the most resilient to noise when it comes to maintaining low BER. This makes OFDM the best option for acoustic communication in deep water. The study ends by suggesting more research into boosting OFDM’s capabilities in order to increase the robustness and effectiveness of underwater communication systems in even more difficult environments. This research could potentially take the form of hybrid approaches that combine the best feature of various modulation techniques
