A PAPR suppressing technology of OFDM underwater acoustic communication based on fiber optic hydrophone

Huang Keqin; Ke Wang; Delong Zhao; Yutao Chen; Lingyu Kong; Yuda Chen; Yang Yang; Zhangqi Song

doi:10.1117/12.2627051

27 March 2022 A PAPR suppressing technology of OFDM underwater acoustic communication based on fiber optic hydrophone

Huang Keqin, Ke Wang, Delong Zhao, Yutao Chen, Lingyu Kong, Yuda Chen, Yang Yang, Zhangqi Song

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 12169BU (2022) https://doi.org/10.1117/12.2627051
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

Underwater acoustic communication is the main technical means of wireless information transmission in the ocean. Orthogonal Frequency Division Multiplexing (OFDM) technology has the advantages of high frequency band utilization and strong resistance to multipath fading. It is widely used in underwater acoustic communication. However, OFDM communication has the problem of high Peak to Average Power Ratio (PAPR), which will lead to signal distortion and reduce communication efficiency. This paper proposes a PAPR suppression method for OFDM communication based on random jitter of cyclic prefix length. It can effectively reduce the probability that the initial phase of each group of subcarriers is the same or similar, and reduce the generation of peak to average power ratio from the source.

Citation Download Citation

Huang Keqin, Ke Wang, Delong Zhao, Yutao Chen, Lingyu Kong, Yuda Chen, Yang Yang, and Zhangqi Song "A PAPR suppressing technology of OFDM underwater acoustic communication based on fiber optic hydrophone", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 12169BU (27 March 2022); https://doi.org/10.1117/12.2627051

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