Adaptive Orthogonal Frequency Division Multiplexing Simulation for Under Water Communication

From controlling of underwater vehicles to data acquisition in underwater sensor networks, underwater communication is a vital aspect in a wide range of underwater applications. The environmental condition of conductivity of sea water results in attenuation of electromagnetic signals and hence sound waves at low frequencies are currently used for large distances. This paper attempts to use adaptive Orthogonal Frequency Division Multiplexing (OFDM) theory to design and develop an underwater acoustic modem. The design intention is to maximize the throughput of the system while meeting average bit error rate target. The iterative design and simulation of adaptive OFDM algorithm is covered in the paper.