Precoded Faster-Than-Nyquist Signaling for Doubly Selective Underwater Acoustic Communication Channel
Jingwen Zhou, Takumi Ishihara, Shinya Sugiura
Abstract
In this letter, we propose faster-than-Nyquist (FTN) signaling transmission that is robust for an underwater acoustic (UWA) doubly selective channel. Owning to the explicit benefits of a reduced symbol interval specific to FTN signaling, the detrimental effects of a time-selective channel are significantly relaxed. Furthermore, upon introducing single-carrier transmit precoding and equalization, the proposed FTN signaling achieves a high detection performance. Our simulation results demonstrate that the proposed FTN signaling outperforms the conventional Nyquist-based benchmark scheme in the doubly selective channel.
Topics & Concepts
PrecodingUnderwater acoustic communicationNyquist–Shannon sampling theoremComputer scienceChannel (broadcasting)Transmission (telecommunications)UnderwaterBenchmark (surveying)Nyquist rateElectronic engineeringEqualization (audio)Intersymbol interferenceTelecommunicationsSampling (signal processing)MIMOEngineeringGeodesyOceanographyGeologyComputer visionGeographyDetectorUnderwater Vehicles and Communication SystemsRadar Systems and Signal ProcessingPAPR reduction in OFDM