Mitigation of Interference in Underwater Wireless Acoustic Communication - A Survey

The exploitation of natural resources which is present in under water is in increasing order, particularly in the sea. With much technological furtherance in the fields of healthcare, monitoring the environment, oil and gas exploration and others, it has ignited the process of growing. Wireless communications underwater play a vital role in all these systems that are available depending on radiofrequency, optical, and acoustic transmissions. Because of its advantages such as attenuation and distortion is less, low absorption, long range links, all others, Acoustic communication is chosen for many applications among these technologies. Underwater Acoustic communication has ample number of challenges in wireless medium. One of the main challenges is to manage the use of limited battery power. Many features hinder the utilization of battery power during transmission and Interference play a vital role because more power will be used in the retransmission of lost signals. This survey paper investigates about the different methods to reduce the interference in underwater wireless acoustic communication.