Multicarrier Waveform Design for mmWave/THz Integrated Sensing and Communication

Fan Zhang, Tianqi Mao, Ruiqi Liu, Leyi Zhang, Dezhi Zheng, Tengfei Wang, Zhaocheng Wang*

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Integrated sensing and communication (ISAC) is recognized as one of key enabling technologies for the Meta-verse. To enhance both communication data rate and sensing accuracy, the exploitation of millimeter wave (mmWave) and terahertz (THz) frequencies becomes mandatory due to huge amount of spectrum resources. To combat the severe path-loss at mmWave/THz band, large-scale antenna arrays are usually employed to form directional beams. However, the ultra-broad bandwidth induces undesirable beam squint (BS) effects, where the beams from different subcarriers point to diverse angles, leading to the communication performance loss. Fortunately, this BS effect can be leveraged to facilitate the multi-angle super-resolution sensing with minimal beam sweeping overhead. Against this background, we propose a novel multicarrier waveform design methodology for the BS-assisted ISAC systems, which optimizes the frequency resource allocation between sensing and communications to reach a good dual-functional performance trade-off. To mitigate mutual interference, both functions are assigned non-overlapping subcarriers. The subcarrier assignment design is formulated as a mixed integer programming problem to maximize the communication throughput while ensuring the required sensing range and resolution, which involves high complexity to get an exact solution. To this end, we propose a two-stage iterative update algorithm to obtain a quasi-optimal solution with low computational complexity. Numerical results demonstrate that our proposed methodology achieves high-rate communication and high-resolution sensing simultaneously with relatively low overhead.

源语言英语
主期刊名20th International Wireless Communications and Mobile Computing Conference, IWCMC 2024
出版商Institute of Electrical and Electronics Engineers Inc.
501-506
页数6
ISBN(电子版)9798350361261
DOI
出版状态已出版 - 2024
活动20th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2024 - Hybrid, Ayia Napa, 塞浦路斯
期限: 27 5月 202431 5月 2024

出版系列

姓名20th International Wireless Communications and Mobile Computing Conference, IWCMC 2024

会议

会议20th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2024
国家/地区塞浦路斯
Hybrid, Ayia Napa
时期27/05/2431/05/24

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引用此

Zhang, F., Mao, T., Liu, R., Zhang, L., Zheng, D., Wang, T., & Wang, Z. (2024). Multicarrier Waveform Design for mmWave/THz Integrated Sensing and Communication. 在 20th International Wireless Communications and Mobile Computing Conference, IWCMC 2024 (页码 501-506). (20th International Wireless Communications and Mobile Computing Conference, IWCMC 2024). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IWCMC61514.2024.10592328