Photonics-Aided THz Integrated Sensing and Communication System Based on a Subcarrier-Chirp Inter-Embedded Waveform
The advancement of integrated sensing and communications (ISAC) technology into millimeter-wave and even terahertz (THz) bands will be crucial for the upcoming sixth-generation wireless access networks. Here, we propose and experimentally demonstrate a photonics-assisted THz ISAC system based on a t...
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IEEE
2025-01-01
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| Series: | IEEE Open Journal of the Communications Society |
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| Online Access: | https://ieeexplore.ieee.org/document/10904178/ |
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| author | Junhao Zhang Mingzheng Lei Min Zhu Qingzhi Zhou Bingchang Hua Yuancheng Cai Hao Li Jiao Zhang Zhengyi Liang Yang Li Xingyu Chen Junjie Ding Qing Zhong Sha Zhu Jianjun Yu |
| author_facet | Junhao Zhang Mingzheng Lei Min Zhu Qingzhi Zhou Bingchang Hua Yuancheng Cai Hao Li Jiao Zhang Zhengyi Liang Yang Li Xingyu Chen Junjie Ding Qing Zhong Sha Zhu Jianjun Yu |
| author_sort | Junhao Zhang |
| collection | DOAJ |
| description | The advancement of integrated sensing and communications (ISAC) technology into millimeter-wave and even terahertz (THz) bands will be crucial for the upcoming sixth-generation wireless access networks. Here, we propose and experimentally demonstrate a photonics-assisted THz ISAC system based on a time-frequency efficient dual-function waveform. The key to designing the ISAC waveform is embedding the subcarrier communication signals in the idle time-frequency dimension of a linear frequency-modulated continuous wave (LFMCW). This subcarrier-chirp inter-embedded (SCIE) method makes full use of the idle time-frequency resources of the LFMCW without compromising its large timebandwidth product, thereby significantly enhancing the time-frequency efficiency of the LFMCW. The experimental findings demonstrate that owing to the novel and simple communication embedding, wireless transmission of an 88-Gbps data rate over a distance of 10.2 m in the 150-GHz band is successfully realized. Simultaneously, multi-user detection with an 8-mm ranging resolution is also realized. By fully utilizing the idle time-frequency resources of the LFMCW, a density of information-resolution quotient of up to 46.2 × 10-2 bit·s/m2 has been achieved. Furthermore, the proposed ISAC system exhibits good frequency tunability and flexible communication modulation formats. |
| format | Article |
| id | doaj-art-9a93cd5085f7435a905eb038f75924b3 |
| institution | OA Journals |
| issn | 2644-125X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of the Communications Society |
| spelling | doaj-art-9a93cd5085f7435a905eb038f75924b32025-08-20T02:12:07ZengIEEEIEEE Open Journal of the Communications Society2644-125X2025-01-0162993300310.1109/OJCOMS.2025.354589610904178Photonics-Aided THz Integrated Sensing and Communication System Based on a Subcarrier-Chirp Inter-Embedded WaveformJunhao Zhang0https://orcid.org/0009-0008-1526-0303Mingzheng Lei1https://orcid.org/0000-0001-8340-8666Min Zhu2https://orcid.org/0000-0003-4359-1552Qingzhi Zhou3Bingchang Hua4https://orcid.org/0000-0001-6280-2955Yuancheng Cai5https://orcid.org/0000-0002-2883-9655Hao Li6Jiao Zhang7https://orcid.org/0000-0002-6947-6002Zhengyi Liang8Yang Li9https://orcid.org/0009-0006-0543-220XXingyu Chen10https://orcid.org/0000-0001-9001-2117Junjie Ding11https://orcid.org/0000-0002-5641-4240Qing Zhong12Sha Zhu13https://orcid.org/0000-0001-6725-5145Jianjun Yu14https://orcid.org/0000-0002-2101-7018National Mobile Communications Research Laboratory, Southeast University, Nanjing, ChinaPervasive Communication Research Center, Purple Mountain Laboratories, Nanjing, ChinaNational Mobile Communications Research Laboratory, Southeast University, Nanjing, ChinaNational Mobile Communications Research Laboratory, Southeast University, Nanjing, ChinaPervasive Communication Research Center, Purple Mountain Laboratories, Nanjing, ChinaPervasive Communication Research Center, Purple Mountain Laboratories, Nanjing, ChinaNational Mobile Communications Research Laboratory, Southeast University, Nanjing, ChinaNational Mobile Communications Research Laboratory, Southeast University, Nanjing, ChinaNational Mobile Communications Research Laboratory, Southeast University, Nanjing, ChinaNational Mobile Communications Research Laboratory, Southeast University, Nanjing, ChinaPervasive Communication Research Center, Purple Mountain Laboratories, Nanjing, ChinaPervasive Communication Research Center, Purple Mountain Laboratories, Nanjing, ChinaNational Mobile Communications Research Laboratory, Southeast University, Nanjing, ChinaInstitute of Intelligent Photonics, Nankai University, Tianjin, ChinaKey Laboratory for Information Science of Electromagnetic Waves, Fudan University, Shanghai, ChinaThe advancement of integrated sensing and communications (ISAC) technology into millimeter-wave and even terahertz (THz) bands will be crucial for the upcoming sixth-generation wireless access networks. Here, we propose and experimentally demonstrate a photonics-assisted THz ISAC system based on a time-frequency efficient dual-function waveform. The key to designing the ISAC waveform is embedding the subcarrier communication signals in the idle time-frequency dimension of a linear frequency-modulated continuous wave (LFMCW). This subcarrier-chirp inter-embedded (SCIE) method makes full use of the idle time-frequency resources of the LFMCW without compromising its large timebandwidth product, thereby significantly enhancing the time-frequency efficiency of the LFMCW. The experimental findings demonstrate that owing to the novel and simple communication embedding, wireless transmission of an 88-Gbps data rate over a distance of 10.2 m in the 150-GHz band is successfully realized. Simultaneously, multi-user detection with an 8-mm ranging resolution is also realized. By fully utilizing the idle time-frequency resources of the LFMCW, a density of information-resolution quotient of up to 46.2 × 10-2 bit·s/m2 has been achieved. Furthermore, the proposed ISAC system exhibits good frequency tunability and flexible communication modulation formats.https://ieeexplore.ieee.org/document/10904178/D-bandTHzintegrated sensing and communication (ISAC)LFMCWphotonicsassisted |
| spellingShingle | Junhao Zhang Mingzheng Lei Min Zhu Qingzhi Zhou Bingchang Hua Yuancheng Cai Hao Li Jiao Zhang Zhengyi Liang Yang Li Xingyu Chen Junjie Ding Qing Zhong Sha Zhu Jianjun Yu Photonics-Aided THz Integrated Sensing and Communication System Based on a Subcarrier-Chirp Inter-Embedded Waveform IEEE Open Journal of the Communications Society D-band THz integrated sensing and communication (ISAC) LFMCW photonicsassisted |
| title | Photonics-Aided THz Integrated Sensing and Communication System Based on a Subcarrier-Chirp Inter-Embedded Waveform |
| title_full | Photonics-Aided THz Integrated Sensing and Communication System Based on a Subcarrier-Chirp Inter-Embedded Waveform |
| title_fullStr | Photonics-Aided THz Integrated Sensing and Communication System Based on a Subcarrier-Chirp Inter-Embedded Waveform |
| title_full_unstemmed | Photonics-Aided THz Integrated Sensing and Communication System Based on a Subcarrier-Chirp Inter-Embedded Waveform |
| title_short | Photonics-Aided THz Integrated Sensing and Communication System Based on a Subcarrier-Chirp Inter-Embedded Waveform |
| title_sort | photonics aided thz integrated sensing and communication system based on a subcarrier chirp inter embedded waveform |
| topic | D-band THz integrated sensing and communication (ISAC) LFMCW photonicsassisted |
| url | https://ieeexplore.ieee.org/document/10904178/ |
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