Results 121 to 130 of about 2,907 (204)

Analog Beamforming Enabled Multicasting: Finite-Alphabet Inputs and Statistical CSI

The average multicast rate (AMR) is analyzed in a multicast channel utilizing analog beamforming with finite-alphabet inputs, considering statistical channel state information (CSI).
Ouyang, Chongjun, Liang, Xuwen, Xie, Zhong, Xie, Zhuochen, Wu, Yanjun   +4 more
core  

Maximizing mmWave Coverage: Deployment Strategies for Multiple NCRs

IEEE Access
This paper introduces a realistic coverage simulation model for network-controlled repeaters (NCRs) intended as a relay system designed to improve coverage in millimeter wave (mmWave) networks.
Yuki Sasaki, Jin Nakazato, Kazuki Maruta, S. B. Cha, Arokia Nathan   +4 more
doaj   +1 more source

Scaling Phased Array Receivers to Massive MIMO and Wide Bandwidth with Analog Baseband Beamforming

, 2022
Massive multi-user MIMO is a promising technique to increase capacity with spatial filtering for spectrum reuse, and increasing SNR through array gain. There are many advantages to increasing antenna and user count in these arrays, but there is also much
Naviasky, Emily
core  

Simultaneous Multi-Beam Pattern Synthesis of Subarray via Alternating Projection

IEEE Access
For a large-scale array, the subarray technology can save the radio frequency (RF) channels. However, the use of subarray technology often tends to reduce the beamforming performance of the array.
Zhongtian Jing, Yubing Han, Yuchen Feng, Lei Xiao   +3 more
doaj   +1 more source

Multiuser downlink hybrid analog-digital beamforming with individual SINR constraints

This paper deals with the problem of multiuser transmit hybrid analog-digital beamforming. Precisely, we tackle the problem of transmit power minimization under minimum signal-to-noise-plus-interference ratio (SINR) constraints.
Blanco, Luis, Vazquez, Miguel Angel, Pérez Neira, Ana Isabel   +2 more
core  

State-Driven Adaptive Deep-Unfolded PGA Algorithm for Hybrid Beamforming in MIMO-JCAS Systems. [PDF]

Sensors (Basel)
Liu F, Wang Z, Gao Y, Yao Z.
europepmc   +1 more source

A Low-Cost Two-Dimensional Scalable Active Receive Phased Array with 8 Simultaneously Reconfigurable Beams. [PDF]

Micromachines (Basel)
Zhang H, Guo LX, Dun S, Li X, Mei W, Xu X, Bu D.   +6 more
europepmc   +1 more source

Improving spectral efficiency in distributed massive MIMO in multi-user downlink millimeter wave. [PDF]

Sci Rep
Rajaganapathi R, Senthilkumar S, Alabdulkreem E, Alruwais N.   +3 more
europepmc   +1 more source

MMU-STCNN-BDQ: a deep reinforcement learning framework for secure and energy-efficient beamforming in 6G mMIMO networks. [PDF]

Sci Rep
Ramudu K, Medasani S, Addepalli T, Sharma M, Pandey A, Srinubabu M.   +5 more
europepmc   +1 more source

SINR-Based User Clustering for Downlink NOMA Systems with Limited Channel Information. [PDF]

Sensors (Basel)
Kim W, Nguyen NT, Jeon T.
europepmc   +1 more source