Results 161 to 170 of about 995,967 (198)
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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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Zero-Forcing Precoding With Partial CSI in Multibeam High Throughput Satellite Systems
IEEE Transactions on Vehicular Technology, 2021 Precoding has emerged as a prominent technique to mitigate interbeam interference (IBI) in the forward link of a multibeam high throughput satellite system. In this paper, we consider zero-forcing (ZF) precoding to mitigate IBI.
Khoa Nguyen +2 more
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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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Game-Based Zero-Forcing Precoding for Multicell Multiuser Transmissions
2011 IEEE Vehicular Technology Conference (VTC Fall), 2011This paper studies the precoding design in a multicell multiuser (MU) system with universal frequency-reuse using a game-based approach. Considered is a multicell system, where the MU downlink transmissions in each cell are facilitated by a multi-antenna base-station (BS).
Hung Nguyen-Le +2 more
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Regularized zero-forcing precoding with non-homogeneous user conditions
2014 IEEE Wireless Communications and Networking Conference (WCNC), 2014This paper is concerned with linear precoding designs in a multiuser downlink system. We consider a multiple-input single-output system with multiple single-antenna user-equipments (UE) experiencing non-homogeneous user conditions, including the channel strength and the background noise power. Assuming perfect knowledge of channel state information and
Duy H. N. Nguyen, Tho Le-Ngoc
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An Iterative Precoder Design for Successive Zero-Forcing Precoded Systems
IEEE Communications Letters, 2012Successive zero-forcing (SZF) is a precoding technique for broadcast channels that partially precancels the multiuser interference. Due to the residual interference, the optimal precoder design for SZF is difficult to find, and currently unknown. This letter proposes a suboptimal iterative precoder design for the sum rate maximization problem for SZF ...
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