Research on Orthogonal Time Frequency Space in a 125-GHz mmWave Indoor Wireless Communication System
We provide a detailed comparison between orthogonal time frequency space (OTFS) and orthogonal frequency division multiplexing (OFDM) modulation schemes, focusing on peak-to-average power ratio (PAPR), spectral efficiency (SE), and resistance to frequency dispersion. First experimental research of OTFS is achieved in a photonics-aided D-band indoor wireless communication system. We compare the performance of OTFS and OFDM schemes in real frequency-selective (static) and partially emulated doubly-selective (mobile) channels, using the same experimental setup and indoor environment. OTFS scheme exhibits superior bit error rate (BER) performance and >2 dB power sensitivity improvement over OFDM in both static and mobile channels. Moreover, due to the reduction in overheads, OTFS-4QAM achieves a SE of 2 bit/s/Hz, which is 15% higher than that of OFDM-4QAM. The improvement in SE of OTFS supports the transmission of massive amounts of data for future indoor wireless networks.
Authors
- Xiongwei Yang (ORCID: https://orcid.org/0000-0001-9944-0361)
- Qiutong Zhang (ORCID: https://orcid.org/0009-0003-9002-2587)
- Yi Wei (ORCID: https://orcid.org/0000-0002-6624-9138)
- Wen Zhou (ORCID: https://orcid.org/0000-0002-2998-5849)
- Chengzhen Bian (ORCID: https://orcid.org/0009-0009-0718-1020)
- Kaihui Wang (ORCID: https://orcid.org/0000-0001-8898-8989)
- Luhan Jiang (ORCID: https://orcid.org/0000-0001-5741-3920)
- Jianjun Yu (ORCID: https://orcid.org/0000-0002-2101-7018)
- Weiping Li (ORCID: https://orcid.org/0000-0003-0120-6193)
- Jiali Chen (ORCID: https://orcid.org/0000-0001-7929-5136)
- Xianming Zhao
- Mingxu Wang (ORCID: https://orcid.org/0000-0002-7769-9353)
- Qinyi Zhang (ORCID: https://orcid.org/0000-0002-7865-8764)
- Peng Tian (ORCID: https://orcid.org/0009-0005-7313-2885)
- Sicong Xu (ORCID: https://orcid.org/0009-0008-7824-6007)
- Uddin Rahim
- Yang Han (ORCID: https://orcid.org/0000-0002-0871-5882)
Institutions
- Harbin Institute of Technology (CN)
- Fudan University (CN)
- State Key Laboratory of ASIC and System
Publication Details
- Journal
- Journal of Lightwave Technology
- Published
- 2025-03-18
- DOI
- https://doi.org/10.1109/jlt.2025.3552366
- Citations
- 9
- Primary Topic
- Millimeter-Wave Propagation and Modeling
- Type
- article
- Field-Weighted Citation Impact
- 6.57
Funders
- National Natural Science Foundation of China