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This paper proposes a frequency-domain detection scheme for single-carrier multiple-input, multiple-output (MIMO) underwater acoustic (UWA) communication using low-density parity-check (LDPC) codes. The new scheme employs turbo equalization technology together with iterative decoding technique, leading to a double-layer turbo detection structure. In the outer-layer turbo equalization, a soft-decision...
In this paper, an oversampled orthogonal frequency division multiplexing (OFDM) detector is proposed for multiple-input multiple-output (MIMO) underwater acoustic (UWA) communications. With simple time-domain oversampling and frequency-domain signal processing, the new oversampled OFDM (OOFDM) detector can achieve multipath diversity that is unavailable in a conventional uncoded OFDM system, while...
In this paper, a robust detection scheme is proposed for high data rate single-carrier multiple-input-multiple-output (MIMO) underwater acoustic communications. The new scheme adopts turbo block decision-feedback equalization, where the soft-decision equalizer performs successive soft interference cancellation of both the intersymbol interference in the time domain, and the multiplexing interference...
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