Abstract:Transmit beamforming for underwater acoustic communications is challenging because channel state information must be obtained through feedback and may be noisy or outdated. In this paper, we investigate an angle-based beamforming strategy for a single-user link that reduces reliance on full channel knowledge by exploiting stable geometric features of the propagation field. In particular, the beam is steered toward a principal propagation path that remains relatively stable over time. Experimental results using the SPACE and MACE data sets demonstrate reliable communication with excellent data-detection mean-squared error and zero bit errors.
From: Diego Cuji [view email]
[v1]
Thu, 14 May 2026 14:54:21 UTC (878 KB)
[v2]
Fri, 17 Jul 2026 19:32:45 UTC (907 KB)
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