TY - JOUR
T1 - Enabling dual-polarized, dual-vector millimeter-wave transmission via delta sigma modulation in a single-input single-output wireless link
AU - Fang, Liye
AU - Pan, Xiaolong
AU - Li, Xinying
AU - Xie, Tangyao
AU - Bi, Jiahao
AU - Yan, Hengxin
AU - Lin, Qiuying
AU - Xu, Yuxiao
AU - Xin, Xiangjun
N1 - Publisher Copyright:
© 2024
PY - 2025/3
Y1 - 2025/3
N2 - Radio-over-fiber (RoF) systems have attracted much attention in the field of wireless communication because of their advantages of high bandwidth, low loss and long-distance transmission. Utilizing delta–sigma modulation (DSM) and optical and antenna polarization multiplexing, we propose a novel scheme for the generation, transmission, and detection of dual-polarized, dual-vector millimeter-wave (mm-wave) signals via a single-input single-output (SISO) wireless link. Our method leverages band-pass (BP) DSM to transform high-order quadrature amplitude modulation (QAM) signals into simple on-off keying (OOK) signals. Subsequently, these signals undergo optical quadrature phase-shift keying (QPSK) modulation, optical polarization multiplexing, and optical heterodyne beating, producing dual-polarized, dual-vector mm-wave signals. These signals are then transmitted through an antenna-polarization-multiplexing-enabled SISO wireless link and reverted to their original QAM format by receiver digital signal processing (DSP). Experimental validation confirms the effectiveness of our proposed scheme. Our proposed scheme enables the generation of dual-polarized, dual-vector mm-wave signals in the W-band (75–110 GHz). These signals carry both 64QAM and 128QAM data in each polarization, over 10 km standard single-mode fiber-28 (SMF-28) and a 1 m SISO wireless link, achieving the bit error rates (BERs) of all signals below the hard-decision forward-error-correction (HD-FEC) threshold of 3.8e−3. Based on BP DSM, this scheme significantly enhances the performance of RoF systems by reducing receiver sensitivity requirements. Besides, by introducing optical and antenna polarization multiplexing simultaneously, the capacity and efficiency of the RoF system are significantly improved.
AB - Radio-over-fiber (RoF) systems have attracted much attention in the field of wireless communication because of their advantages of high bandwidth, low loss and long-distance transmission. Utilizing delta–sigma modulation (DSM) and optical and antenna polarization multiplexing, we propose a novel scheme for the generation, transmission, and detection of dual-polarized, dual-vector millimeter-wave (mm-wave) signals via a single-input single-output (SISO) wireless link. Our method leverages band-pass (BP) DSM to transform high-order quadrature amplitude modulation (QAM) signals into simple on-off keying (OOK) signals. Subsequently, these signals undergo optical quadrature phase-shift keying (QPSK) modulation, optical polarization multiplexing, and optical heterodyne beating, producing dual-polarized, dual-vector mm-wave signals. These signals are then transmitted through an antenna-polarization-multiplexing-enabled SISO wireless link and reverted to their original QAM format by receiver digital signal processing (DSP). Experimental validation confirms the effectiveness of our proposed scheme. Our proposed scheme enables the generation of dual-polarized, dual-vector mm-wave signals in the W-band (75–110 GHz). These signals carry both 64QAM and 128QAM data in each polarization, over 10 km standard single-mode fiber-28 (SMF-28) and a 1 m SISO wireless link, achieving the bit error rates (BERs) of all signals below the hard-decision forward-error-correction (HD-FEC) threshold of 3.8e−3. Based on BP DSM, this scheme significantly enhances the performance of RoF systems by reducing receiver sensitivity requirements. Besides, by introducing optical and antenna polarization multiplexing simultaneously, the capacity and efficiency of the RoF system are significantly improved.
KW - Antenna polarization multiplexing
KW - Delta–sigma modulation
KW - High-order quadrature amplitude modulation
KW - Millimeter-wave transmission
KW - Optical polarization multiplexing
UR - http://www.scopus.com/inward/record.url?scp=85212577043&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2024.131384
DO - 10.1016/j.optcom.2024.131384
M3 - Article
AN - SCOPUS:85212577043
SN - 0030-4018
VL - 577
JO - Optics Communications
JF - Optics Communications
M1 - 131384
ER -