Performance of adaptive multichannel decision-feedback equalization in the simulated underwater acoustic channel

Abstract

Adaptive multichannel decision feedback equalization [M. Stojanovic, J. Catipovic, and J. G. Proakis, J. Acoust. Soc. Am. 94, 1621–1631 (1993)] is widely adopted to address the severe inter-symbol interference encountered in the underwater acoustic communication channel. In this presentation, its performance will be reported in the simulated communication channel provided by a ray-based acoustic model, for different ocean conditions and source-receiver geometries. The ray model uses the Rayleigh parameter to prescribe the sea surface effects on the acoustic signal. It also supports different types of sediment. The ray model output has been compared with the experimental data and shows comparable results in transmission loss. We will also compare against the performance of multichannel decision feedback equalization supported by existing ray models, for example, BELLHOP.