A Geometry-Based Underwater Acoustic Channel Model for Time Reversal Acoustic Communication

2018 International Seminar on Intelligent Technology and Its Applications (ISITIA) Pub Date : 2018-08-01 DOI:10.1109/ISITIA.2018.8711067

Y. Widiarti, Suwadi, Wirawan, T. Suryani

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引用次数: 4

Abstract

High data rate is a necessity in data transmission on the underwater acoustic channel, such as the transmission of large data packets and real-time data transmission from underwater sensors. However, the underwater acoustic ((UWA) channel exhibits phase fluctuations and strong amplitudes as well as diffraction, refraction and reflection phenomena. These factors are obstacles to obtaining high-speed, reliable and long-range underwater acoustic communication. The effects of multipath interference due to surface reflections and the ocean floor are major problems in UWA communication. Therefore, the underwater acoustic channel modeling is required. In this paper, a simple but effective geometry-based channel modeling for time reversal communication is proposed. The influence of transmitter and receiver height at varying distances is analyzed. This paper also presents the performance analysis of time reversal and OFDM communication where their collaboration shows superior performance. The simulation result shows that TR-OFDM is able to achieve a BER value of less than 0.001 on SNR above 10 dB.

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基于几何的时变水声通信水声信道模型

高数据速率是水声信道数据传输的必要条件，如大数据包的传输和水下传感器的实时数据传输。然而，水声信道表现出相位波动和强振幅以及衍射、折射和反射现象。这些因素都是实现高速、可靠、远程水声通信的障碍。地面反射和海底多径干扰的影响是UWA通信中的主要问题。因此，需要对水声通道进行建模。本文提出了一种简单有效的基于几何的时变通信信道建模方法。分析了不同距离下发射机和接收机高度的影响。本文还介绍了时间反转和OFDM通信的性能分析，它们的协同工作表现出优异的性能。仿真结果表明，在信噪比大于10 dB的情况下，TR-OFDM能够实现小于0.001的误码率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 International Seminar on Intelligent Technology and Its Applications (ISITIA)

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