Review of “OFDM for Underwater Acoustic Communications” by Shengli Zhou, Zhaohui Wang
نویسندگان
چکیده
منابع مشابه
Adaptive Doppler-shift Compensation for Ofdm Underwater Acoustic Communications System
An adaptive Doppler-shift compensation scheme for wideband orthogonal frequency division multiplexing (OFDM) is proposed in this paper. This approach accommodates a time-varying Doppler, where the time scaling factor for each OFDM symbol is frequently estimated depending on the inherent periodicity of the cyclic-prefix and its preceding neighbours' values. The proposed technique relies on a sin...
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Sinusoidal Transform based Orthogonal Frequency Division Multiplexing (OFDM) is proposed for Underwater Acoustic Communications. Underwater acoustic channels are large delay spread channels. The sinusoidal transforms can be used as an alternative to the discrete Fourier transform (DFT) for OFDM wireless transmission with the added advantages of reduced implementation area, increased computation...
متن کاملCovert underwater acoustic communications.
Low probability of detection (LPD) communications are conducted at a low received signal-to-noise ratio (SNR) to deter eavesdroppers to sense the presence of the transmitted signal. Successful detection at intended receiver heavily relies on the processing gain achieved by employing the direct-sequence spread-spectrum (DSSS) technique. For scenarios that lack a sufficiently low SNR to maintain ...
متن کاملAdaptive Underwater Acoustic Communications
Underwater wireless networks consist of mobile and static nodes, which usually communicate using the acoustic channel since radio transmissions attenuate rapidly and optical communication is only suitable for short distances. The underwater acoustic channel is plagued with issues of high transmission power requirements, rapidly changing channel characteristics, multi-path echoes, possible high ...
متن کاملRealization of Ofdm Based Underwater Acoustic Communication
Nowadays underwater communication plays a vital role in applications from commercial extends to military purposes. Present underwater communication systems involve the transmission of information in the form of sound, electromagnetic (EM), or optical waves. All these techniques has their own benefits and limitations. Acoustic communication is the most versatile and widely used technique in unde...
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ژورنال
عنوان ژورنال: IEEE Aerospace and Electronic Systems Magazine
سال: 2020
ISSN: 0885-8985,1557-959X
DOI: 10.1109/maes.2019.2950758