Performance analysis of DFT-spread based OFDM transmission system over underwater acoustic channels

被引：2

作者：

Shen W. ^{[1
]}

Sun H. ^{[2
]}

Cheng E. ^{[1
]}

Zhang Y. ^{[1
]}

机构：

[1] Key Laboratory of Underwater Acoustic Communication and Marine Information Technology, Xiamen University, Ministry of Education

[2] Department of Communication Engineering, Xiamen University

来源：

Journal of Convergence Information Technology | 2011年 / 6卷 / 07期

关键词：

DFT-spread OFDM; PAPR; Underwater acoustic communication;

D O I：

10.4156/jcit.vol6.issue7.10

中图分类号：

学科分类号：

摘要：

This paper presents peak-to-average power ratio (PAPR) and bit error ratio (BER) performances of Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-Spread OFDM)system over underwater acoustic channels. Comparing with OFDM transmission systems, the structured mapping between the DFT spread symbols and sub-carriers enables the transmitted signal to have a much lower PAPR in the scheme. And with the application of an additional DFT operation, spreading the information over several subcarriers will make a diversity gain in a frequency-selective fading underwater acoustic channel.Simulations and the experiment results demonstrate that the DFT-spread OFDM system possesses satisfactory PAPR and BER performances, and it is applicable for signal transmission in a benign underwater channel.

引用

页码：79 / 86

页数：7

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