A tutorial on near-field XL-MIMO communications towards 6G
Extremely large-scale multiple-input multiple-output (XL-MIMO) is a promising technology for
the sixth-generation (6G) mobile communication networks. By significantly boosting the …
the sixth-generation (6G) mobile communication networks. By significantly boosting the …
Near-field sparse channel representation and estimation in 6G wireless communications
The employment of extremely large antenna arrays and high-frequency signaling makes
future 6G wireless communications likely to operate in the near-field region. In this case, the …
future 6G wireless communications likely to operate in the near-field region. In this case, the …
Reconfigurable intelligent surface assisted localization: Technologies, challenges, and the road ahead
Owing to the breakthrough of artificial meta-materials, the emergence and evolution of
reconfigurable intelligent surface (RIS) have drawn a novel blueprint for the development of …
reconfigurable intelligent surface (RIS) have drawn a novel blueprint for the development of …
Channel estimation for near-field XL-RIS-aided mmwave hybrid beamforming architectures
Extremely large-scale reconfigurable intelligent surface (XL-RIS) has been a prospective
capacity-enhancing technique. Faced with XL-RIS-aided millimeter wave (mmWave) …
capacity-enhancing technique. Faced with XL-RIS-aided millimeter wave (mmWave) …
Enabling more users to benefit from near-field communications: From linear to circular array
Massive multiple-input multiple-output (MIMO) for 5G is evolving into the extremely large-
scale antenna array (ELAA) to increase the spectrum efficiency by orders of magnitude for …
scale antenna array (ELAA) to increase the spectrum efficiency by orders of magnitude for …
Reconfigurable Intelligent Surfaces in 6G Radio Localization: A Survey of Recent Developments, Opportunities, and Challenges
In this survey paper, we present an extensive review of the use of RIS in 6G radio
localization, highlighting their pivotal role as a low-cost, energy-efficient technology that …
localization, highlighting their pivotal role as a low-cost, energy-efficient technology that …
RIS-enabled passive radar towards target Localization
In this paper, we study a communication-centric integrated sensing and communication
(ISAC) approach, where an access point (AP) communicates with users, while a passive …
(ISAC) approach, where an access point (AP) communicates with users, while a passive …
Near-field channel estimation for extremely large-scale reconfigurable intelligent surface (XL-RIS)-aided wideband mmwave systems
Near-field communications present new opportunities over near-field channels, however,
the spherical wavefront propagation makes near-field signal processing challenging. In this …
the spherical wavefront propagation makes near-field signal processing challenging. In this …
Low-overhead localization and VR identification for subarray-based ELAA systems
Extremely large aperture arrays (ELAAs) represent a promising architecture in the sixth-
generation mobile communication systems with improved spatial division multiplexing gain …
generation mobile communication systems with improved spatial division multiplexing gain …
CSI acquisition in RIS-assisted mobile communication systems
Reconfigurable intelligent surface-(RIS) assisted mobile communication is a promising
technological paradigm thanks to the attractive advantages of low cost and flexible control of …
technological paradigm thanks to the attractive advantages of low cost and flexible control of …