A Study on Multi-carrier Technique for High-speed Data Transmission in Underwater Communication

Han, Jeong-Woo; Kim, Ki-Man; Son, Yoon-Jun

Journal of Navigation and Port Research 2010;34(3):181-187.
Published online April 30, 2010.

수중통신에서 고속 데이터 전송을 위한 다중반송파 기법 연구

한정우, 김기만, 손윤준

A Study on Multi-carrier Technique for High-speed Data Transmission in Underwater Communication

Jeong-Woo Han, Ki-Man Kim, Yoon-Jun Son

Abstract

The performance of underwater wireless communication system is influenced on channel characteristic. Especially, a delay spread cause by reverberation and multi-path happen the ISI (Inter Symbol Interference) and reduces the communication performance. In this paper, we study the application of high speed data transmission in underwater to use the OFDM (Orthogonal Frequency Division Multiplexing) technique for robust the reverberation and multi-path. we confirm the performance of communication in underwater to use the model for actually underwater channel simulation model. As a result, we acquired the BER of modulation techniques. The BER of single carrier is 2×10⁻¹ and BER of multi carrir is 8×10⁻² in 1000m.

Key Words: Underwater communication;Multi-path;Single carrier;Multi carrier;OFDM