内容提示: 1Hierarchical Beam Training for ExtremelyLarge-Scale MIMO: From Far-Field toNear-FieldYu Lu, Student Member, IEEE, Zijian Zhang, Student Member, IEEE, andLinglong Dai, Fellow, IEEEAbstractExtremely large-scale MIMO (XL-MIMO) is a promising technique for future 6G communications.The ...
Extremely large-scale multiple-input multiple-output (XL-MIMO) communications correspond to systems whose antenna size is so large that conventional assumptions, such as uniform plane wave (UPW) impingement, are no longer valid. This paper studies the channel modelling and performance analysis of XL...
Extremely large-scale multiple-input-multiple-output (XL-MIMO) at millimeter-wave (mmWave) and terahertz (THz) bands plays an important role in 6G networks for its extreme high beamforming gain and abundant spectrum resources. To unleash the superiority of XL-MIMO, accuratechannelestimation is of...
Extremely large-scale multiple-input multiple-output (XL-MIMO) is regarded as one of the key techniques to enhance the performance of future wireless communications. Different from regular MIMO, the XL-MIMO shifts part of the communication region from the far field to the near field, where the...
Extremely Large-scale Array (ELAA) is considered a frontier technology for future communication systems, playing a crucial role in enhancing the rate and spectral efficiency of wireless networks. As ELAA employs a multitude of antennas operating at higher frequencies, users are typically situated in ...
Channel Estimation for Extremely Large-Scale MIMO: Far-Field or Near-Field?. IEEE Trans Commun , 2022 , 70: 2663 -2677 CrossRef Google Scholar [14] Elbir A M, Vijay Mishra K, Chatzinotas S. NBA-OMP: near-field beam-split-aware orthogonal matching pursuit for wideband THz channel es...
Extremely large-scale massive multiple-input multiple-output (MIMO) has shown considerable potential in future mobile communications. However, the use of extremely large aperture arrays has led to near-field and spatial non-stationary channel conditions, which result in changes to transceiver design and...
Accurate channel estimation is essential to empower extremely large-scale MIMO (XL-MIMO) in 6G networks with ultra-high spectral efficiency. Unfortunately, most of the existing channel estimation methods designed for XL-MIMO fail to consider a double-side near-field scenario, where both transmitter ...
Massive multiple-input multiple-output (MIMO) systems are critical technologies for the next generation of networks. In this field of research, new forms of deployment are emerging, such as extremely large-scale MIMO (XL-MIMO), in which the antenna array at the base station (BS) is of extre...
Channel Estimation for Extremely Large-Scale MIMO: Far-Field or Near-Field?. IEEE Trans Commun , 2022 , 70: 2663 -2677 CrossRef Google Scholar [14] Elbir A M, Vijay Mishra K, Chatzinotas S. NBA-OMP: near-field beam-split-aware orthogonal matching pursuit for wideband THz channel es...