Time Domain Propagation Characteristics with Causal Channel Model for Terahertz Band
المؤلف | Wu, Zhaona |
المؤلف | Ebisawa, Hiroto |
المؤلف | Umebayashi, Kenta |
المؤلف | Lehtomäki, Janne |
المؤلف | Zorba, Nizar |
تاريخ الإتاحة | 2024-07-14T07:57:22Z |
تاريخ النشر | 2021 |
اسم المنشور | 2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings |
المصدر | Scopus |
المعرّف | http://dx.doi.org/10.1109/ICCWorkshops50388.2021.9473820 |
الملخص | In recent years, as more devices are connected to wireless communication systems, the demand for spectrum has increased. As conventional spectrum resources are limited, the THz band becomes an interesting option of more spectrum for wireless communication. However, the channel in THz band has different characteristics compared to the channels in typical frequency bands, and therefore, it is necessary to perform more research to understand the THz channel propagation. In this paper, we focus on the time domain THz channel model under line of sight (LoS) propagation conditions and investigate the channel propagation characteristics in time domain. Firstly, in the full frequency band (FFB) scenario, the time domain impulse responses, which correspond to the time domain THz channel model, are presented for different distances. In the impulse responses, there are significantly delayed paths due to the molecular absorption which causes significant frequency selectivity. Secondly, we extend the model to the limited frequency band (LFB) scenario by applying the root raised cosine filters. The results indicate that the richness of the delayed paths in the impulse response depends on the selected frequency band. In addition, the results indicate that the time delay and total energy strongly depend on the distance whereas the delay spread varies as a function of frequency. |
راعي المشروع | ACKNOWLEDGEMENT This work was partially funded by project Marubeni - Qatar University number M-QJRC-2020-4. The statements made herein are solely the responsibility of the authors. The work of J. Lehtomäki was supported by the Academy of Finland 6Genesis Flagship (grant no. 318927). |
اللغة | en |
الناشر | Institute of Electrical and Electronics Engineers Inc. |
الموضوع | Average delay delay spread impulse response THz total energy |
النوع | Conference |
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