Recently researchers have been attracted by the joint communication and sensing (JCS) techniques, due to their diverse benefits in communication-sensing applications. By sharing the spectrum and hardware components, the advantages of JCS systems include enhanced spectrum efficiency and reduced device costs. Following the trend of scaling up the carrier frequencies for 5G and beyond, Terahertz (THz) band is envisioned as a promising chunk of spectrum featuring multi-GHz bandwidth windows. However, despite the great promise, the waveform design for THz JCS is still not explored enough. In this work, the design guidelines for THz JCS waveform are presented. With the help of these guidelines, a non-uniform multi-wideband orthogonal frequency division multiplexing (NMW-OFDM) THz system is proposed to overcome the limitations of OFDM based JCS. The proposed NMW-OFDM system is able to realize sub-millimeter-level accuracy of the range estimation by using a multi-stage sensing algorithm, which is three orders of magnitude improvement compared to the OFDM-based JCS system. In addition, the accuracy of velocity estimation can be enhanced by 10 times within a short frame time. Finally, the system can achieve unprecedented communication data rate of 100 Gbps without sacrificing the maximum detectable distance.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Non-Uniform Multi-Wideband OFDM System for Terahertz Joint Communication and Sensing


    Contributors:
    Wu, Yongzhi (author) / Lemic, Filip (author) / Han, Chong (author) / Chen, Zhi (author)


    Publication date :

    2021-04-01


    Size :

    1807712 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    A Sensing Integrated DFT-Spread OFDM System for Terahertz Communications

    Wu, Yongzhi / Lemic, Filip / Han, Chong et al. | IEEE | 2021


    Joint Communication and Sensing for MIMO Systems with Overlapped OFDM and FMCW

    Boddapati, Hari Krishna / Kumar, Krishna / Reddy Chavva, Ashok Kumar et al. | IEEE | 2023


    Multi-Range Joint Automotive Radar and Communication using Pilot-based OFDM Radar

    Wang, Chang-Heng / Altintas, Onur / Ozkaptan, Ceyhun D. et al. | IEEE | 2020



    Wideband active matching of terahertz envelope detectors

    Karisan, Yasir / Sertel, Kubilay | IEEE | 2012