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- W4220947398 abstract "The nature of the multipath channel and the peak-to-average power ratio (PAPR) are regarded as the main challenges restricting the design of a multicarrier reliable underwater acoustic (UWA) communication. This paper proposes a new scheme, precoded index modulation orthogonal frequency division modulation spread spectrum (IM-OFDM-SS), for UWA communication. The precoded IM-OFDM-SS is proposed to increase the transmission efficiency and exploit the spreading and multipath diversities and, at the same time, reduce the PAPR to achieve a reliable communication system. Two different precoders, discrete Hartley transform (DHT) and discrete cosine transform (DCT), are utilized in the proposed scheme and compared with the conventional IM-OFDM-SS scheme. Simulation and real experimental results demonstrate the outperformance of the proposed precoded IM-OFDM-SS in comparison to the conventional benchmarks in terms of PAPR and bit error rate (BER) performance." @default.
- W4220947398 created "2022-04-03" @default.
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- W4220947398 date "2022-03-09" @default.
- W4220947398 modified "2023-10-14" @default.
- W4220947398 title "Precoded IM-OFDM-SS for Underwater Acoustic Communication" @default.
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- W4220947398 doi "https://doi.org/10.1155/2022/7940993" @default.
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