To adapt to the multi-scale and multi-dimensional communication scenarios in 6G wireless communications,photon-assisted terahertz(THz)technology has attracted widespread attention due to its low latency and high direc...To adapt to the multi-scale and multi-dimensional communication scenarios in 6G wireless communications,photon-assisted terahertz(THz)technology has attracted widespread attention due to its low latency and high directivity,which maximizes the broadband and high-frequency response characteristics of optical devices and effectively breaks through the capacity limitation of electronic THz technology[1,2].However,THz wireless communications face the problem of weak THz wave penetration and large path loss caused by strong atmospheric attenuation,which limits the coverage of THz signals[3,4].Therefore,multiple-input multiple-output(MIMO)technology has been introduced in the THz system by using antenna arrays at both the transmitter and the receiver to improve the quality of THz links and increase the capacity of wireless networks[5-7].展开更多
基金supported by the National Key R&D Program of China(Grant No.2023YFB2905600)the National Natural Science Foundation of China(Grant Nos.62127802,62331004,62305067,U24B20142,U24B20168,62427815)the Key Project of Jiangsu Province of China(Grant No.BE2023001-4).
文摘To adapt to the multi-scale and multi-dimensional communication scenarios in 6G wireless communications,photon-assisted terahertz(THz)technology has attracted widespread attention due to its low latency and high directivity,which maximizes the broadband and high-frequency response characteristics of optical devices and effectively breaks through the capacity limitation of electronic THz technology[1,2].However,THz wireless communications face the problem of weak THz wave penetration and large path loss caused by strong atmospheric attenuation,which limits the coverage of THz signals[3,4].Therefore,multiple-input multiple-output(MIMO)technology has been introduced in the THz system by using antenna arrays at both the transmitter and the receiver to improve the quality of THz links and increase the capacity of wireless networks[5-7].
