Results 151 to 160 of about 995,967 (198)
Optimization of the Receiving Orientation Angle for Zero-Forcing Precoding in VLC [PDF]
IEEE Communications Letters, 2021 We study the performance of linear zero-forcing (ZF) precoding in multiuser multiple-input single-output visible light communications (VLC) when we are able to select the receiving orientation angle (ROA) of each user. For radio-frequency communications,
Máximo Morales-Céspedes +2 more
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RIS-Aided Secure Communications With Regularized Zero-Forcing Precoding
IEEE Transactions on Information Forensics and SecurityInternational audienceReconfigurable intelligent surfaces (RISs) have been shown effective in strengthening the physical layer security of wireless systems, and the two-timescale design was proposed to tackle the challenges in channel estimation and ...
Song, Shenghui +2 more
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Regularized Zero-Forcing Dirty Paper Precoding in a High-Throughput Satellite Communication System
Electronics, 2022 In order to maximize the available data rate and spectrum utilization efficiency, a high-throughput satellite communication system adopts the full spectrum reuse scheme, which will cause serious co-frequency interference.
Xinye Shao +2 more
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Zero-Forcing Precoding and Generalized Inverses [PDF]
IEEE Transactions on Signal Processing, 2008 We consider the problem of linear zero-forcing precoding design and discuss its relation to the theory of generalized inverses in linear algebra. Special attention is given to a specific generalized inverse known as the pseudo-inverse. We begin with the standard design under the assumption of a total power constraint and prove that precoders based on ...
Shlomo Shamai, Yonina Eldar, Y C Eldar
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Complex Regularized Zero Forcing Precoding for Massive MIMO Systems
Wireless Personal Communications, 2021In this paper, an energy efficient precoding scheme is proposed for massive multiple-input multiple-output (MIMO) systems. The proposed precoding scheme outperforms the conventional zero forcing (ZF) precoder in terms of the power consumption and the achievable transmission rate by including a complex valued regularization parameter such that the ...
Mohamed Mostafa +2 more
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Local Partial Zero-Forcing Precoding for Cell-Free Massive MIMO
IEEE Transactions on Wireless Communications, 2020 Cell-free Massive MIMO (multiple-input multiple-output) is a promising distributed network architecture for 5G-and-beyond systems. It guarantees ubiquitous coverage at high spectral efficiency (SE) by leveraging signal co-processing at multiple access ...
Marcus Karlsson +2 more
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Outage Analysis for MISO Zero-Forcing Precoding With Outdated CSI
IEEE Transactions on Vehicular Technology, 2020Zero-forcing precoding is a commonly-used multiple-user, multiple-input multiple-output beamforming technique. Applying such precoding, the signal-to-interference-plus-noise ratio (SINR) statistics with outdated channel state information, which involve various projections related to the multi-dimensional channel vectors and precoding vectors, have ...
Guangyi Liu +2 more
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Symbol-Level Precoding Through the Lens of Zero Forcing and Vector Perturbation [PDF]
IEEE Transactions on Signal Processing, 2022 Symbol-level precoding (SLP) has recently emerged as a new paradigm for physical-layer transmit precoding in multiuser multi-input-multi-output (MIMO) channels. It exploits the underlying symbol constellation structure, which the conventional paradigm of linear precoding does not, to enhance symbol-level performance such as symbol error probability ...
Qiang Li, Wing-Kin Ma, Mingjie Shao
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Zero-Forcing and MMSE Precoding for G.fast
2015 IEEE Global Communications Conference (GLOBECOM), 2014Hybrid copper/fiber networks bridge the gap between the fiber link at the distribution point and the customer by using copper wires over the last meters. The G.fast transmission technology has been designed to be used in such a fiber to the distribution point (FTTdp) network.
Rainer Strobel +2 more
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On the Spectral Efficiency of Multiuser Massive MIMO with Zero-Forcing Precoding
Lecture Notes in Electrical Engineering, 2020This paper investigates the spectral efficiency (SE) of downlink massive MIMO systems, where we consider the Ricean fading channels and utilize the zero forcing precoder at the base state. An exact expression for the SE is derived and the tight lower and upper bounds are presented by utilizing the modified Jensen’s inequality.
Weijie Tan
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