U nderwater communication implementation with OFDM

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is an emerging technology in wireless communication for high data rate. It is a special form of multi-carrier communication technique which is the platform for modern communication systems. Underwater channel is a time varying multipath channel causing Inter Symbol Interference (ISI), Inter Carrier Interference (ICI) and fading. Due to the detrimental effect of time and frequency spreading, achieving high data rate in underwater wireless communication is challenging. This paper investigates on how OFDM finds its suitability for wireless underwater communication. The wireless underwater communication with OFDM scheme was tested using underwater transducers in a water tank and the results are presented.