20 results for “XL-MIMO”
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Yilong Liu, Xi Yang, Jing Xu, Jun Zhang +1 more
This paper investigates the performance impact of non-square uniform planar arrays (UPAs) on extremely large-scale multiple-input multiple-output (XL-MIMO) systems, deriving effective beamfocusing dis…
This paper introduces a graph-based framework for fair comparison of cellular, coordinated, and cell-free massive-MIMO systems, and derives compatible spectral efficiency expressions for uplink and do…
Jinyuan Liu, Yong Liang Guan, Tuo Wu, Hong Niu +2 more
This paper derives closed-form outage probability expressions and proposes a fairness optimization algorithm for a multiuser MISO downlink system that combines rate-splitting multiple access and fluid…
Hongru Li, Zeyan Zhuang, Zixin Wang, Hengtao He +3 more
This paper proposes a statistical framework for designing task-aware multiple-input multiple-output (MIMO) precoders in future wireless networks using statistical channel state information and trainin…
This paper proposes a lightweight, distributed machine learning framework for sub-centimeter indoor localization using D-MIMO in O-RAN architectures, reducing midhaul traffic by 100x while maintaining…
This paper shows that a stem-connected MiLAC can realize every beamformer on the complex Stiefel manifold and achieves the same sum-rate as a fully-connected MiLAC for multiuser downlink beamforming u…
This paper investigates the fundamental limits and optimal design for Integrated Sensing and Communication (ISAC) systems under noncoherent conditions, deriving a lower bound for noncoherent mutual in…
This paper analyzes the effects of calibration errors on downlink beamforming in a repeater-assisted massive MIMO system and derives analytical expressions for the downlink spectral efficiency.
This paper proposes a new method, multibit quantized precoding (MQP), for multi-user massive MIMO systems with low-resolution digital-to-analog converters, enforcing the finite-alphabet constraint thr…
This paper compares the downlink spectral efficiency of multi-user large antenna systems with global and local calibration approaches, and demonstrates that global calibration outperforms local calibr…
Hongpu Zhang, Shu Sun, Ruifeng Gao, Tongjia Zhang +1 more
This paper proposes a model for cross-band CSI reconstruction in multi-band low-altitude wireless systems using radio-frequency metadata and pilot-guided cross-attention.
This paper investigates the design of dual-function radar-communication systems for massive MIMO systems using 1-bit DACs and ADCs, optimizing the transmit signal matrix for enhanced sensing performan…
This paper derives Cramér-Rao lower bounds for cooperative MIMO integrated sensing and communication networks, considering position and velocity coupling in the Fisher information matrix.