A Collection of Contemporary Research Articles in Electronics, Communication & Computation- Book ISBN- 978-81-948050-7-6

Authors: Anand Kumar, Prashant Kumar

Abstract: Underwater wireless communication (UWC) has played a vital role in the exploration of aquatic environments such as oceans, rivers, ponds, etc. The acoustics transmission in underwater faces a lot of hurdles such as temperature, pressure, water characteristics environment, and noises variety which makes underwater acoustics (UWA) communication more challenging and unique. UWA channel model is the most challenging task due to its time-varying and multipath spread properties. The main initiatives and contributions of this study provide the current UWA communication survey on channel estimation. The current and previous work is also summarized of orthogonal frequency division multiplexing (OFDM) UWA communication techniques concerning applied theoretically. The summary of current research activities and future trends has been presented.

Keywords: Underwater communication, Orthogonal frequency division multiplexing (OFDM), Channel estimation, Channel modeling, Recent trends