Results 311 to 320 of about 75,227 (355)
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Anti-Jamming Colonel Blotto Game for Underwater Acoustic Backscatter Communication
IEEE Transactions on Vehicular TechnologyUnderwater acoustic backscatter communication, which allows an underwater sensor node (USN) to communicate with the surface sink node (SN) by reflecting the acoustic signal from the SN, is a promising solution for enabling the Internet of Underwater ...
Long Zhang +6 more
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Efficient use of bandwidth for underwater acoustic communication
The Journal of the Acoustical Society of America, 2013In a recent shallow water experiment, acoustic communication transmissions were carried out over the 10 to 32 kHz band in ∼100 m deep water over a 3 km range. A natural question is how best to utilize that bandwidth. In one multiband approach discussed previously, the band was divided into four smaller subbands that were processed independently using ...
H C, Song, W S, Hodgkiss
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Beyond underwater acoustic communications
OCEANS 2011 IEEE - Spain, 2011The ability to communicate underwater using acoustic energy in place of electromagnetic energy is rapidly becoming commonplace. Indeed, vendors and academic researchers in many advanced countries are pursuing the development of acoustic modems. The emphasis often varies among these efforts: some, especially academic researchers, focus on increased ...
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Scalable OFDM design for underwater acoustic communications
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008Multicarrier modulation in the form of OFDM has been actively pursued for underwater acoustic communication recently. In this paper, we present a desirable property of OFDM that one signal design can be easily scaled to fit into different transmission bandwidths with negligible changes on the receiver.
Baosheng Li +3 more
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Asynchronous multiuser underwater acoustic communications (L)
The Journal of the Acoustical Society of America, 2012An asynchronous multiuser system is proposed to support multiple-access underwater communications without the use of code-division multiple-access or a feedback channel. The rich multipath channels experienced by spatially separated users will be sufficient to ensure separation of collided packets at the base station. The iterative receiver will employ
S E, Cho, H C, Song, W S, Hodgkiss
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Multipath correlations in underwater acoustic communication channels
The Journal of the Acoustical Society of America, 2013Uncorrelated scattering (US), which assumes that multipath arrivals undergo uncorrelated scattering and are thus uncorrelated, has been the standard model for digital communications including underwater acoustic communications. This paper examines the cross-correlation of multipath arrivals based on at-sea data with different temporal coherence time ...
S H, Huang, T C, Yang, Chen-Fen, Huang
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On the physics of underwater acoustic communications
AIP Conference Proceedings, 2012Digital communications have been traditionally treated using signal processing approaches. Algorithm and performance is system-model dependent. For underwater acoustic communications, the system model is very complex due to the different channel environmental conditions which can vary rapidly with time, and are location dependent.
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Adaptive Modulation and Coding for Underwater Acoustic Communication
2019 Eleventh International Conference on Ubiquitous and Future Networks (ICUFN), 2019In UWAC (Underwater Acoustic Communications), underwater acoustic channels change rapidly due to various environment condition. AMC (Adaptive Modulation and Coding) technique is efficient method for improving the system efficiency by changing transmission parameters according to channel conditions in underwater acoustic channels.
Hui Su Lee +4 more
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Machine Learning for Underwater Acoustic Communications
IEEE Wireless Communications, 2022Lihuan Huang +5 more
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Iterative Phase Compensation for Underwater Acoustic Communications
2008 IEEE Pacific-Asia Workshop on Computational Intelligence and Industrial Application, 2008An iterative phase compensation algorithm is presented to recover carriers for underwater acoustic communications in this paper. The joint equalization and phase compensation are iteratively implemented. In a new iteration, the second-degree polynomial is used to fit a phase sequence. The performance of new algorithm is analyzed with simulations.
Mengyu Zhu, Yuliang Yang
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