Volume 31 Issue 3
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YU Jianjun, WEI Yi. Digital Signal Processing for High-Speed THz Communications[J]. Chinese Journal of Electronics, 2022, 31(3): 534-546. doi: 10.1049/cje.2021.00.258
Citation: YU Jianjun, WEI Yi. Digital Signal Processing for High-Speed THz Communications[J]. Chinese Journal of Electronics, 2022, 31(3): 534-546. doi: 10.1049/cje.2021.00.258

Digital Signal Processing for High-Speed THz Communications

doi: 10.1049/cje.2021.00.258
Funds:  This work was supported by the National Natural Science Foundation of China (61935005, 61922025, 61527801, 61675048, 61720106015, 61835002, 61805043)
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  • Author Bio:

    (corresponding author) received the Ph.D. degree from Beijing University of Posts and Telecommunications, Beijing, China, in 1999. He is currently a Professor at the School of Information Science and Technology, Fudan University, Shanghai, China. He is also IEEE Fellow and OSA Fellow. His main research directions are ultra-broadband high-speed optical fiber communication, millimeter wave communication and terahertz communication. (Email: jianjun@fudan.edu.cn)

    received the M.S. degree from Xi’an University of Posts and Telecommunications, Xi’an, China, in 2021. She is currently pursuing a Ph.D. degree with the School of Information Science and Technology, Fudan University, Shanghai, China. Her research interest is photonic millimeter wave and terahertz communication technology. (Email: 21110720126@m.fudan.edu.cn)

  • Received Date: 2021-07-29
  • Accepted Date: 2021-12-31
  • Available Online: 2022-02-18
  • Publish Date: 2022-05-05
  • The use of advanced digital signal processing (DSP) technology in the high-speed terahertz (THz) communication can effectively compensate the linear and nonlinear effects of the system and further improve the transmission performance of the system. This paper introduces the principle and application of advanced DSP algorithms such as probability shaping (PS) technology, Volterra series nonlinear compensation algorithm, Kramers-Kronig receiver, look-up table (LUT) pre-distortion compensation technology, pre-equalization and decision-directed least-mean-square equalization algorithm. Combined with DSP algorithms such as PS and LUT pre-distortion, using photon-assisted technology to successfully realize the wireless transmission of vector THz signals higher than 1 Tbit/s on the sub-THz band (D-band) 4 × 4 multiple input multiple output system.
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