Improved Doppler Tracking and Correction for Underwater Acoustic Communications
ICASSP '97 Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '97) -Volume 1 - Volume 1
Efficient Multicarrier Communication for Highly Spread Underwater Acoustic Channels
IEEE Journal on Selected Areas in Communications
IEEE Transactions on Signal Processing
An underwater acoustic implementation of DFT-spread OFDM
EURASIP Journal on Advances in Signal Processing - Special issue on advances in signal processing for maritime applications
Aquatic-based cyber-physical systems in the Calcasieu Estuary
Proceedings of the Sixth ACM International Workshop on Underwater Networks
Asymmetric multi-path division communications in underwater acoustic networks with fading channels
Journal of Computer and System Sciences
Wireless Personal Communications: An International Journal
Underwater Acoustic Multimedia Communication Based on MIMO---OFDM
Wireless Personal Communications: An International Journal
Experimental demonstration of time reversal communication in doubly dispersive underwater channels
Proceedings of the Eighth ACM International Conference on Underwater Networks and Systems
Iterative estimation of the time-varying underwater acoustic channel using basis expansion models
Proceedings of the Eighth ACM International Conference on Underwater Networks and Systems
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The performance and complexity of signal processing systems for underwater acoustic communications has dramatically increased over the last two decades. With its origins in noncoherent modulation and detection for communication at rates under 100 b/s, phase-coherent digital communication systems employing multichannel adaptive equalization with explicit symbol-timing and phase tracking are being deployed in commercial and military systems, enabling rates in excess of 10 kb/s. Research systems have been shown to further dramatically increase performance through the use of spatial multiplexing. Iterative equalization and decoding has also proven to be an enabling technology for dramatically enhancing the robustness of such systems. This article provides a brief overview of signal processing methods and advances in underwater acoustic communications, discussing both single-carrier and emerging multicarrier methods, along with iterative decoding and spatial multiplexing methods.