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Research on Enhanced Encoding Technology for Cellular Passive Internet of Things Systems
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Yidan JIN, Shuai MA, Yuan LI, Bohan YANG, Shanpeng XIAO
Journal of Beijing University of Posts and Telecommunications | 2025, 48(5) : 112 - 120
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Journal of Beijing University of Posts and Telecommunications | 2025, 48(5): 112-120
• PAPERS •
Research on Enhanced Encoding Technology for Cellular Passive Internet of Things Systems
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Yidan JIN, Shuai MA, Yuan LI, Bohan YANG, Shanpeng XIAO
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  • Institute of Internet of Things Technology and Applications, China Mobile Communications Corporation Research Institute, Beijing 100053, China
doi: 10.13190/j.jbupt.2024-186
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A low complexity cyclic redundancy check (CRC)-headbiting convolutional code (HBCC)-Miller cascaded encoding scheme has been proposed to combat interference in long-distance wireless transmission environments and greatly improve the communication quality of cellular passive Internet of things systems. This scheme can utilize the combination of CRC and HBCC for encoding and decoding. Compared with convolutional CC encoding, theminimum number of registers can be reduced to 1/3 of the number of long term evolution (LTE) tail-biting CC (TBCC) registers, significantly reducing the computational cost of encoding and further reducing label encoding power consumption. The simulation results show that the proposed low complexity cascaded encoding scheme has a performance improvement of 4.2dB compared to Miller8 encoding, further enhancing anti-interference performance, expanding single station communication distance, and retaining rich clock information between codewords, which can better adapt to the label encoding requirements of ultra-low power cellular IoT systems.

cellular passive Internet of things  /  head biting convolutional code  /  cyclic redundancy check  /  anti-interference
Yidan JIN, Shuai MA, Yuan LI, Bohan YANG, Shanpeng XIAO. Research on Enhanced Encoding Technology for Cellular Passive Internet of Things Systems[J]. Journal of Beijing University of Posts and Telecommunications, 2025 , 48 (5) : 112 -120 . DOI: 10.13190/j.jbupt.2024-186
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doi: 10.13190/j.jbupt.2024-186
  • Receive Date：2024-09-15
  • Online Date：2026-04-16
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  • Received：2024-09-15
Affiliations
    Institute of Internet of Things Technology and Applications, China Mobile Communications Corporation Research Institute, Beijing 100053, China
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