Volume 31 Issue 3
May  2022
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DENG Xianjin, YANG Hao, WU Qiuyu, JIANG Jun, LIN Changxing. Phase Noise Effects on the Performance of High-Order Digital Modulation Terahertz Communication System[J]. Chinese Journal of Electronics, 2022, 31(3): 589-594. doi: 10.1049/cje.2021.00.321
Citation: DENG Xianjin, YANG Hao, WU Qiuyu, JIANG Jun, LIN Changxing. Phase Noise Effects on the Performance of High-Order Digital Modulation Terahertz Communication System[J]. Chinese Journal of Electronics, 2022, 31(3): 589-594. doi: 10.1049/cje.2021.00.321

Phase Noise Effects on the Performance of High-Order Digital Modulation Terahertz Communication System

doi: 10.1049/cje.2021.00.321
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  • Author Bio:

    was born in Anyue, China, in 1973. He received the B.S. degree in electronic engineering from Xidian University, Xi’an, China, in 1998. He received the M.S. degree in electronic science and techniques from University of Electronic Science and Technology of China, Chengdu, China, in 2006. He joined the Institute of Electronic Engineering (IEE), China Academy of Engineering Physics (CAEP), Mianyang, China, in 2003. His current research involves mmW/Terahertz communication system, mmW solid-state power combining, and microwave active circuits. (Email: dengxianjin_mtrc@caep.cn)

    was born in Wu-han, China, in 1991. He received the B.E. degree in electronics and information engineering from the Huazhong University of Science and Technology, Wuhan, in 2014, and the Ph.D. degree in electronic and electrical engineering from the University of Birmingham, Edgbaston, Birmingham, U.K., in 2019. He joined the China Academy of Engineering Physics (CAEP) in 2020. His current research interests include terahertz frequency passive circuits. (Email: 410584923@qq.com)

    was born in Guilin, China, in 1986. He received the B.S. degree in engineering physics from Tsinghua University, Beijing, China, in 2009, and M.S. degree in communication and information system from China Academy of Engineering Physics. He joined the Institute of Electronic Engineering (IEE), China Academy of Engineering Physics, Mianyang, China, in 2012. His current research involves mm/terahertz wire-less communication systems and tera-hertz science and technology. (Email: wuqiuyu_mtrc@caep.cn)

    was born in Chong-qing, China, in 1987. He received the B.S. degree in engineering physics from Tsinghua University, Beijing, China in 2011, and the Ph.D. degree in radiophysics at China Academy of Engineering Physics (CAEP). His current research involves mmW/Teraertz instruments, including solid-state mixers and multipliers based on Schottky diodes. (Email: jiangjun_mtrc@caep.cn)

    (corresponding author) was born in Chongqing, China, in 1986. He received the B.S. and the Ph.D. degrees from Tsinghua University, Beijing, China, in 2007 and 2012, respectively. He worked as a Research Assistant from June 2009 to December 2009 in European Organization for Nuclear Research (CERN). He joined the IEE, CAEP in 2012. His current research involves algorithm and implementation of high speed demodulation and terahertz wireless local area network. (Email: linchangxing_mtrc@caep.cn)

  • Received Date: 2021-08-31
  • Accepted Date: 2021-12-16
  • Available Online: 2022-02-17
  • Publish Date: 2022-05-05
  • As the carrier frequency goes into the terahertz band, the phase noise of the signal source has increasing impacts on the performance of the communication system. Considering a 16QAM high-order digital modulation terahertz communication system (DMTCS), by comparing the influence of two kinds of local oscillator signal sources with different phase noise characteristics on the bit error rate (BER) performance of the system based on theoretical analysis and experimental research, it is found that the near-end phase noise of local oscillator signal source has a great influence on the BER performance of the DMTCS. The suppression of phase noise of the local oscillator signal source based on choosing loop bandwidth of the digital phase-locked loop (DPLL) at the receiving end is also discussed. It is found that the negative impacts of phase noise on BER performance of the system can be efficiently decreased by reasonably selecting the loop bandwidth of the DPLL.
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