分组码水下通信系统性能评价

2016 Fifth International Conference on Eco-friendly Computing and Communication Systems (ICECCS) Pub Date : 2016-12-01 DOI:10.1109/ECO-FRIENDLY.2016.7893242

B. Pranitha, L. Anjaneyulu

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引用次数: 5

摘要

水下通信(UWC)是一种要求非常高的应用，尽管存在时变多径传播、信号衰减、水下噪声和干扰等问题，正交频分复用(OFDM)是一种适合UWC的调制技术，因为它能够解决码间干扰(ISI)、信道间干扰(ICI)和多径传播。误码率(BER)与信噪比(SNR)作为评价系统性能的优劣指标。在本研究中，在发射机端除了使用汉明码进行OFDM编码外，还可以提高误码率。结果表明，LDPC码进一步提高了误码率。

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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Performance evaluation of Underwater Communication system using block codes

Underwater Communications (UWC) is a very demanding application in spite of issues like time varying multipath propagation, attenuation of the signal, underwater noise, and interference etc., Orthogonal Frequency Division Multiplexing (OFDM) is a suitable modulation technique for UWC as it has the ability to solve Inter symbol interference (ISI), Inter channel interference (ICI) and also multipath propagation. Bit error rate (BER) versus Signal to noise ratio (SNR) is used as the figure of merit to indicate the performance of the system. In this work it is established that coding at the transmitter in addition to OFDM using Hamming code improves the BER. It is also proved that LDPC code further improves the BER.

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2016 Fifth International Conference on Eco-friendly Computing and Communication Systems (ICECCS)

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