Results 31 to 40 of about 50,793 (224)
Precoding and Beamforming Techniques in mmWave-Massive MIMO: Performance Assessment
Massive MIMO and mmWave communication are the technologies for achieving 5G design goals. Fortunately, these two technologies share a symbiotic integration.
Tewelgn Kebede +4 more
doaj +1 more source
Minimum ber block precoders for zero-forcing equalization [PDF]
We determine the linear precoder that minimizes the bit error rate (BER) at moderate-to-high signal-to-noise ratios (SNRs) for block transmission systems with zero-forcing (ZF) equalization and threshold detection. The design is developed for the two standard schemes for eliminating inter-block interference, viz, zero padding (ZP) and cyclic prefix (CP)
null Yanwu Ding +3 more
openaire +2 more sources
Antenna Selection and Precoding Joint Algorithm in CoMP System [PDF]
Aiming at the problem that too many antennas of large-scale Multiple Input Multiple Output(MIMO) system increases the amount of calculation of precoding algorithm,this paper adopts the method combining antenna selection algorithm with traditional ...
CHANG Youbao,GE Wenping,HAN Qianfang
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Rate-Maximizing Zero-Forcing Hybrid Precoder for MU-MISO-OFDM
Hybrid precoders, consisting of an analog hardware-constrained part operating at radio frequency (RF) and a digital part operating at baseband, reduce the RF implementation complexity and power consumption of multi-antenna transceivers, at the expense of some rate loss compared to an all-digital precoder.
Sander Cornelis +2 more
openaire +3 more sources
Hybrid precoding based on distributed partially-connected structure for multiuser massive MIMO
For multiuser massive multiple-input multiple-output (MIMO) systems, to solve the problem of underutilized spatial resources caused by centralized partially-connected structure (PCS) and fixed-matching phase-control algorithm in conventional schemes, a ...
Lei ZHANG, Qin WANG
doaj +2 more sources
Low‐complexity unsupervised learning‐based hybrid precoding for massive MIMO systems
Hybrid precoding can significantly reduce the number of required radio frequency (RF) chains in massive MIMO systems. However, due to the large number of antennas and the high‐dimensional channel, the existing hybrid precoding algorithms usually require ...
Xiang Liu
doaj +1 more source
Harsh Tataria +3 more
openalex +3 more sources
A combinatorial precoding scheme of cell‐free massive MIMO with channel aging
Here, we investigate the precoding schemes for the downlink data transmission of a time‐division duplex cell‐free massive multiple‐input multiple‐output (MIMO) system with channel aging, which arises from the user mobility.
Hao Fang +4 more
doaj +1 more source
Hybrid Precoding Scheme of UAV-Assisted Multi-User MIMO Millimeter Wave Network [PDF]
A hybrid precoding scheme is designed for the Unmanned Aerial Vehicle(UAV)-assisted multi-user downlink communication scenario of millimeter Wave(mmWave) network.
JI Pengshan, JIA Xiangdong, LU Yi, JING Letian
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Low Complexity Precoding Based on Lanczos Method in Massive MIMO System [PDF]
Aiming at the problem that the computational complexity of the required matrix inversion of Zero Forcing(ZF) precoding matrix is very high due to the large number of antennas and users in large-scale MIMO systems,a low complexity ZF precoding scheme ...
CAO Haiyan,ZHOU Dong,FANG Xin,WANG Xiumin
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