Showing 21 - 40 results of 96 for search '"underwater acoustics"', query time: 0.06s Refine Results
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    A reduced-complexity compressed sensing channel estimation for underwater acoustic channel by Xuan YU, Xuan GENG

    Published 2021-03-01
    Subjects: “…underwater acoustic communication…”
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    Article
  3. 23

    Target Tracking Algorithm for Underwater Acoustic Sensor Networks under DoS Attack by Jing YAN, Jin YANG, Xian YANG, Xiaoyuan LUO

    Published 2024-12-01
    Subjects: “…underwater acoustic sensor networks…”
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    Article
  4. 24

    Information-Theoretic Analysis of Underwater Acoustic OFDM Systems in Highly Dispersive Channels by Francois-Xavier Socheleau, Milica Stojanovic, Christophe Laot, Jean-Michel Passerieux

    Published 2012-01-01
    “…This paper investigates the signal-to-interference ratio and the achievable rates of underwater acoustic (UA) OFDM systems over channels where time and frequency dispersion are high enough that (i) neither the transmitter nor the receiver can have a priori knowledge of the channel state information and (ii) intersymbol/intercarrier interference (ISI/ICI) cannot be neglected in the information-theoretic treatment. …”
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    A robust power allocation algorithm for underwater acoustic cooperative communication network by Xinbin LI, Lingmei ZHANG, Song HAN, Zhipeng HUANG, Zhixin LIU

    Published 2019-01-01
    “…In consideration of the issues of the survival time of node, the uncertainness of channel state information and the poor quality of the service in underwater acoustic cooperative communication network, a robust power allocation algorithm was proposed. …”
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    Article
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    Underwater acoustic OFDM channel equalization based on virtual time reversal mirror by Yan-ling YIN, Gang QIAO, Song-zuo LIU

    Published 2015-01-01
    “…To solve the problem of the severe inter-symbol interference of orthogonal frequency division multiplexing (OFDM) communication caused by underwater acoustic multipath channel,a virtual time reversal channel equalization scheme was proposed.VTRM was able to shorten the channel impulse response and alleviate the phase distortion caused by the acoustic channel for its characteristic of the temporal compression and phase conjugation in frequency domain.The matching pursuit (MP) algorithm was applied to estimate the channel impulse response which could estimate the channel amplitude,time delay and phase accurately.It provided the channel information for the VTRM channel equalization.It also improved a lot compared to the traditional matching correlation channel estimation method which couldn't estimate the channel phase and the estimation precision was low.The simulation,pool trail and Songhua lake experiment show that the performance of VTRM channel equalization is better than that of the PTRM and LS channel equalization in the OFDM underwater acoustic communication.…”
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  13. 33

    The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System by Jinqiu Wu, Gang Qiao, Xiaofei Qi

    Published 2016-01-01
    “…To solve the problem of the high peak-to-average power ratio (PAPR) in Orthogonal Frequency Division Multiplexing (OFDM) for the underwater acoustic communication system, the paper offers a method of reducing PAPR which combines the amplitude limiting and the improved nonlinear transformation. …”
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    A Novel Routing Control Technique for the Energy Hole in the Underwater Acoustic Distributed Network by Dong Xiao, Min Zhao, Ning Jia, Tong-Rui Peng, Yan Chen, Li Ma

    Published 2021-01-01
    “…The energy hole is a severe problem for underwater acoustic distributed networks in that it affects the normal operations of the network and shortens the network’s life span. …”
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    Article
  16. 36

    Enhancing Time-Domain Interference Alignment for Underwater Acoustic Networks with Cross-Layer Design by Qiao Xiao, Zhicheng Bi, Chaofeng Wang

    Published 2024-12-01
    “…In exploiting large propagation delays in underwater acoustic (UWA) networks, the time-domain interference alignment (TDIA) mechanism aligns interference signals through delay-aware slot scheduling, creating additional idle time for improved transmission at the medium access control (MAC) layer. …”
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  17. 37

    Localization Algorithms in Large-Scale Underwater Acoustic Sensor Networks: A Quantitative Comparison by Guangjie Han, Aihua Qian, Chenyu Zhang, Yan Wang, Joel J. P. C. Rodrigues

    Published 2014-03-01
    “…Recently underwater acoustic sensor networks (UASNs) have drawn much attention because of their great value in many underwater applications where human operation is hard to carry out. …”
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    Article
  18. 38

    The Partial Power Control Algorithm of Underwater Acoustic Sensor Networks Based on Outage Probability Minimization by Yun Li, Yishan Su, Zhigang Jin, Sumit Chakravarty

    Published 2016-07-01
    “…How to reduce the outage probability should be considered for underwater acoustic sensor networks (UASNs), where battery change is very difficult. …”
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    Article
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    Jointing sparse recovery estimation algorithm of underwater acoustic channels with long time delay spread by Yue-hai ZHOU, Xiu-ling CAO, Dong-sheng CHEN, Feng TONG

    Published 2016-02-01
    “…Efficient estimation of underwater acoustic channels with a large time ay spread was addressed. …”
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    Article