Results 151 to 160 of about 438 (174)
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Overhead-Performance Tradeoff for MISO Broadcast Channels With Zero-Forcing Precoder
IEEE Transactions on Wireless Communications, 2020By applying a rate-distortion approach, we investigate the relationship between the amount of overhead and the system performance from an information-theoretic point of view. Though the purpose of rate-distortion theory is to find a lower bound on lossy source coding problems, the concepts of distortion and rate can be extended to communication ...
Guangyi Liu 0003 +3 more
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A generalized zero-forcing precoder for multiple antenna Gaussian broadcast channels
2017 IEEE International Symposium on Information Theory (ISIT), 2017In this paper, we consider precoder design for multiuser multiple-input-multiple-output (MIMO) Gaussian broadcast (BC) channels and propose a generalized zero-forcing (GZF) precoder based on successive dirty-paper coding (DPC), i.e., the GZF-DP precoder.
Sha Hu 0001, Fredrik Rusek
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Precoding for Multiple Antenna Gaussian Broadcast Channels With Successive Zero-Forcing
IEEE Transactions on Signal Processing, 2007In this paper, we consider the multiuser Gaussian broadcast channel with multiple transmit antennas at the base station and multiple receive antennas at each user. Assuming full knowledge of the channel state information at the transmitter and the different receivers, a new transmission scheme that employs partial interference cancellation at the ...
Amir D. Dabbagh, David James Love
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Zero-forcing precoding using generalized inverses for G.fast DSL systems
2017 51st Asilomar Conference on Signals, Systems, and Computers, 2017Previous work on precoding for G.fast systems focused on linear and non-linear precoding techniques to maximize the overall throughput. It has been shown that the existing algorithms almost achieve the sum capacity. However, the rate region does no longer feature a rectangular shape as for VDSL systems, that motivates the utilization of operating ...
Andreas Barthelme +3 more
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Limited feedback Zero Forcing precoding scheme for MIMO-broadcast channels
2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008This paper proposes a codebook based limited feedback zero-forcing(ZF) precoding scheme for multi-user multiple-input multiple-output (MIMO) downlink channels. In such system, each user needs to calculate a channel directional index (CDI) and a channel quality indicator (CQI), feedback them to the base station (BS).
Wei Wang 0043 +2 more
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An Efficient Zero-Forcing Precoding Design for Cognitive MIMO Broadcast Channels
IEEE Communications Letters, 2016We consider linear precoding design for an underlay cognitive radio multiple-input multiple-output broadcast channel in the presence of multiple primary users (PUs). Under the assumption of imperfect channel state information (CSI) of the PUs, the objective of this letter is to maximize the sum rate of the secondary system, subject to the power budget ...
Van-Dinh Nguyen +2 more
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Optimal zero-forcing precoding design - oversampled FB frame approach
2010 IEEE International Conference on Acoustics, Speech and Signal Processing, 2010This paper presents a frame analysis of Zero Forcing (ZF) precoding problem. It shows that from a frame point of view, the filter bank (FB) channel is a synthesis frame and its canonical dual analysis frame is the optimal ZF precoder under total power constraint. Based on this analysis, a new precoder design is presented.
Shenpeng Li +2 more
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Fast Computation of Zero-Forcing Precoding for Massive MIMO-OFDM Systems
IEEE Transactions on Signal ProcessingzbMATH Open Web Interface contents unavailable due to conflicting licenses.
Junkai Liu +2 more
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Fully Decentralized Approximate Zero-Forcing Precoding for Massive MIMO Systems
IEEE Wireless Communications Letters, 2019We analyze the downlink of a massive multiuser multiple input, multiple output (MIMO) system where antenna units at the base station are connected in a daisy chain without a central processing unit and only possess local channel knowledge. For this setup, we develop and analyze a linear precoding algorithm for suppressing interuser interference.
Muris Sarajlic +4 more
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User Scheduling for Network MIMO Systems with Successive Zero-Forcing Precoding
2010 IEEE 72nd Vehicular Technology Conference - Fall, 2010In this paper we consider simplified greedy user scheduling algorithms for clustered network multiuser multiple-input multiple-output (MIMO) systems with successive zero-forcing (SZF) precoding. The optimal user scheduling involves an exhaustive search, which is very complex.
Shreeram Sigdel, Witold A. Krzymien
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