Efficient Multicarrier Communication for Highly Spread Underwater Acoustic Channels

Authors:
Sung-Jun Hwang;P. Schniter
Affiliations:
Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH;-
Venue:
IEEE Journal on Selected Areas in Communications
Year:
2008

Citing 0
Cited 6

Signal processing for underwater acoustic communications

IEEE Communications Magazine
Sparse channel estimation for multicarrier underwater acoustic communication: from subspace methods to compressed sensing

IEEE Transactions on Signal Processing
Maximizing the data transmission rate of a cooperative relay system in an underwater acoustic channel

International Journal of Communication Systems
Hybrid time-frequency domain equalization for single-carrier underwater acoustic communications

Proceedings of the Seventh ACM International Conference on Underwater Networks and Systems
Information-theoretic analysis of underwater acoustic OFDM systems in highly dispersive channels

Journal of Electrical and Computer Engineering - Special issue on Underwater Communications and Networking
Underwater Acoustic Multimedia Communication Based on MIMO---OFDM

Wireless Personal Communications: An International Journal

Quantified Score

Hi-index	0.08

Visualization

Abstract

In this paper we propose a novel method for communication over underwater acoustic channels that exhibit simultaneously large delay spread and Doppler spread, such as those found in the surf zone. In particular, we propose a coded pulse-shaped multicarrier scheme that converts the doubly dispersive channel into an inter-carrier interference (ICI) channel with small ICI spread. The resulting ICI is mitigated using a soft noncoherent equalizer that leverages sparsity in the delay-power profile to generate near-optimal bit estimates with low complexity. The noncoherent equalizer uses a delay-power-profile estimate (rather than a channel estimate) which is obtained from pilots. Numerical simulations with surf-zone-like channels demonstrate performance close to genie-aided bounds.