Abstract
This paper considers the benefits of using orthogonal frequency division multiplexing (OFDM) and coded OFDM for underwater acoustic communications where the channel characteristics are extremely dispersive due to severe multipath propagation and Doppler spread and the channel statistics are non-stationary. The fundamental concepts and characteristics of the COFDM underwater acoustic communication system are first described. Computer simulations of a coherent COFDM system for a low frequency medium range shallow underwater acoustic (UWA) communications channel using QPSK modulation are then presented. The robustness of the technique (quantified in terms of the system constellation diagram and the bit error rate) is then demonstrated.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
