Results 131 to 140 of about 438 (174)
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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, , Mostafa Mohamed
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Outage Analysis for MISO Zero-Forcing Precoding With Outdated CSI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 Applying such precoding, the signal-to-interference-plus-noise ratio (SINR) statistics with outdated channel state information, which involve various projections related to the multi-dimensional channel vectors and precoding vectors, have ...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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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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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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Optimal Generalized Inverses for Zero Forcing Precoding
2007 41st Annual Conference on Information Sciences and Systems, 2007We 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 ...
Ami Wiesel +2 more
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Zero-forcing Precoder: A Special Constructive Interference Precoder for PSK Signals
2019 53rd Asilomar Conference on Signals, Systems, and Computers, 2019Recently, constructive interference precoders have been considered for downlink communication systems to utilize the multiuser interference constructively. Such precoders are normally obtained by solving constrained optimization problems at each symbol period. We demonstrate that there exists an analytic solution to a constructive interference precoder
Yanwu Ding, Khanh Pham 0001
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Scheduling in Multihop Wireless Networks With Zero-Forcing Precoding
IEEE Transactions on Vehicular Technology, 2015Recently, multiple concurrent transmission techniques have been proposed for smartly exploiting interference to improve network throughput. This paper considers zero-forcing (ZF) precoding that allows two interfering links to concurrently transmit under certain situations.
Wong Lui, KS, Li, J, Hou, R
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Optimizing Zero-Forcing Precoders for MIMO Broadcast Systems
IEEE Transactions on Communications, 2007In this paper, we develop optimization techniques for linear zero-forcing (ZF) multiple-input, multiple-output (MIMO) broadcast (BC) precoders. A computationally efficient technique based on QR-update algorithms for implementing this optimization is then proposed.
P. S. Udupa, James S. Lehnert
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Coordinated Zero-Forcing precoder with Leakage Minimization
2019 International Multi-Conference on Engineering, Computer and Information Sciences (SIBIRCON), 2019This paper considers multiuser precoder design approach for distributive multiple-input multiple-output (D-MIMO) wireless network. Possibly large amount of radio-remote units (RRU) connected to one cell might be distributed over a wide area which leads to high computational requirements.
Nikolai Zamarashkin +3 more
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MMSE FIR zero-forcing equalizer for shorten length trailing zero precoder
IEEE International Conference on Communications, 2003. ICC '03., 2004A systematic method for designing minimal mean square error (MMSE) FIR equalizer for shorten length trailing zero (TZ) precoder is proposed in this paper. The TZ precoder considered here based on nonmaximally decimated filterbank allows the number of inserted zeros to be as less as one zero per block of transmitted symbols for an arbitrary channel ...
Man-Wai Kwan, Chi-Wah Kok
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