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Design of Low-complexity Orthogonal Time-Frequency-Space Communication System for Time-Frequency Selective Channels
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Cui WANG, Dan WU, Teng SUN, Jinzhong WANG
Radio Communications Technology | 2025, 51(5) : 1128 - 1134
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Radio Communications Technology | 2025, 51(5): 1128-1134
• Engineering Practice and Application Technology •
Design of Low-complexity Orthogonal Time-Frequency-Space Communication System for Time-Frequency Selective Channels
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Cui WANG, Dan WU, Teng SUN, Jinzhong WANG
Affiliations
  • The 54th Research Institute of CETC, Shijiazhuang 050081, China
Published: 2025-09-18 doi: 10.3969/j.issn.1003-3114.2025.05.025
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Based on the principle of Orthogonal Time Frequency and Space (OTFS) modulation, this paper designs an OTFS waveform scheme based on Zero Suffix (ZP) protection. Methods of synchronization, channel estimation, and the detection algorithm based on delay-time domain Maximum Ratio Combining (MRC) are presented, and the MRC detection algorithm is simplified. Hardware implementation schemes of channel interpolation and the MRC detector are given. And the Field Programmable Gate Array(FPGA)hardware implementation of the proposed OTFS system waveform is carried out to verify the feasibility of the key algorithms of the designed OTFS system. Test results show that the designed OTFS system has good performance in resisting doubly selective fading.

orthogonal frequency division multiplexing  /  OTFS  /  delay-Doppler domain  /  iterative detection
Cui WANG, Dan WU, Teng SUN, Jinzhong WANG. Design of Low-complexity Orthogonal Time-Frequency-Space Communication System for Time-Frequency Selective Channels[J]. Radio Communications Technology, 2025 , 51 (5) : 1128 -1134 . DOI: 10.3969/j.issn.1003-3114.2025.05.025
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Article Info
doi: 10.3969/j.issn.1003-3114.2025.05.025
  • Receive Date：2025-04-22
  • Online Date：2026-04-17
  • Published：2025-09-18
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  • Received：2025-04-22
Affiliations
    The 54th Research Institute of CETC, Shijiazhuang 050081, China
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