Results 231 to 240 of about 62,673 (306)
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China Communications, 2022
Relying on direct and converse piezoelectric effects, piezo-acoustic backscatter (PAB) technology reflects ambient acoustic signals to enable underwater backscatter communications at near-zero power, which was first realized through a prototype.
Junliang Lin +5 more
semanticscholar +1 more source
Relying on direct and converse piezoelectric effects, piezo-acoustic backscatter (PAB) technology reflects ambient acoustic signals to enable underwater backscatter communications at near-zero power, which was first realized through a prototype.
Junliang Lin +5 more
semanticscholar +1 more source
Development of a Physical Layer for Adaptive Underwater Acoustic Communications
2022 Sixth Underwater Communications and Networking Conference (UComms), 2022For underwater acoustic modems to operate in a time-varying environment, in-mission adaptation is desirable. A physical layer has been designed that supports mechanisms for ad-hoc configuration changes based on (in-situ and indirectly obtained) channel ...
K. Blom +3 more
semanticscholar +1 more source
ML-based Joint Doppler Estimation and Compensation in Underwater Acoustic Communications
Workshop/Conference on Underwater Networks & Systems, 2022With the rapid growth of Machine Learning (ML) in recent years, more and more technical issues, which were usually solved by model-based solutions, have an opportunity to be solved with data driven solutions.
Yung-Ting Hsieh, Z. Qi, D. Pompili
semanticscholar +1 more source
Underwater acoustic communications
Proceedings of Electro/International 1995, 2002In recent years, underwater acoustic (UWA) communications have received much attention as their applications are beginning to shift from military towards commercial. UWA communications are made difficult by the combined effect of multipath propagation and high temporal and spatial variability of the channel conditions.
openaire +2 more sources
IEEE Signal Processing Letters, 2021
Orthogonal chirp division multiplexing (OCDM) is a recently proposed multiplexing scheme and has drawn increasing attention in underwater communications. In an OCDM system, a series of orthogonal chirp signals carry the data information.
Buyiyi Wang, Xinping Guan
semanticscholar +1 more source
Orthogonal chirp division multiplexing (OCDM) is a recently proposed multiplexing scheme and has drawn increasing attention in underwater communications. In an OCDM system, a series of orthogonal chirp signals carry the data information.
Buyiyi Wang, Xinping Guan
semanticscholar +1 more source
IEEE Journal of Oceanic Engineering, 2021
Acquiring accurate channel state information and mitigating severe intersymbol interference are challenging for underwater acoustic communications with moving transceivers due to the rapid changes of the underwater acoustic channels.
Guang Yang +4 more
semanticscholar +1 more source
Acquiring accurate channel state information and mitigating severe intersymbol interference are challenging for underwater acoustic communications with moving transceivers due to the rapid changes of the underwater acoustic channels.
Guang Yang +4 more
semanticscholar +1 more source
Journal of the Acoustical Society of America, 2021
This paper presents a single-carrier multiuser receiver in underwater acoustic communications with strong multiple access interference (MAI) combining passive time-reversal (PTR) and direct-adaptation-based turbo equalization.
Jingwei Yin +5 more
semanticscholar +1 more source
This paper presents a single-carrier multiuser receiver in underwater acoustic communications with strong multiple access interference (MAI) combining passive time-reversal (PTR) and direct-adaptation-based turbo equalization.
Jingwei Yin +5 more
semanticscholar +1 more source
, 2021
This paper presents a convolutional neural network (CNN) based filter bank multicarrier (FBMC) system for underwater acoustic (UWA) communications. Different from traditional FBMC receivers that only detect the transmitted symbols after expliciting ...
Yunan Zhu +4 more
semanticscholar +1 more source
This paper presents a convolutional neural network (CNN) based filter bank multicarrier (FBMC) system for underwater acoustic (UWA) communications. Different from traditional FBMC receivers that only detect the transmitted symbols after expliciting ...
Yunan Zhu +4 more
semanticscholar +1 more source
Asia-Pacific Conference on Communications, 2021
Given the high transmission loss, severe Doppler spread and large multipath delay in the underwater acoustic (UWA) channel, the channel estimation and tracking in the conventional orthogonal frequency division multiplexing (OFDM) based UWA systems are ...
Xiangming Cai +3 more
semanticscholar +1 more source
Given the high transmission loss, severe Doppler spread and large multipath delay in the underwater acoustic (UWA) channel, the channel estimation and tracking in the conventional orthogonal frequency division multiplexing (OFDM) based UWA systems are ...
Xiangming Cai +3 more
semanticscholar +1 more source
Journal of the Acoustical Society of America, 2021
In this paper, a meta-learning-based underwater acoustic (UWA) orthogonal frequency division multiplexing (OFDM) system is proposed to deal with the environment mismatch in real-world UWA applications, which can effectively drive the model from the given
Yonglin Zhang +4 more
semanticscholar +1 more source
In this paper, a meta-learning-based underwater acoustic (UWA) orthogonal frequency division multiplexing (OFDM) system is proposed to deal with the environment mismatch in real-world UWA applications, which can effectively drive the model from the given
Yonglin Zhang +4 more
semanticscholar +1 more source