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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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Zero-Forcing Based Limited Feedback Hybrid Precoding in mmWave Communications
2019 IEEE/CIC International Conference on Communications in China (ICCC), 2019By exploiting angular sparsity that mmWave channels exhibit, limited feedback hybrid precoding (LFHP) can achieve high performance with a largely reduced system over-head. Most existing works focus on optimizing the system mutual information (SMI), where the receiver complexity is often neglected. More importantly, these SMI-oriented schemes provide no
Shijian Gao +3 more
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Asymptotic Performance of Downlink Massive MIMO with 1-bit Quantized Zero-Forcing Precoding
International Workshop on Signal Processing Advances in Wireless Communications, 2019The use of 1-bit DACs for downlink massive MIMO system can significantly reduce base station energy consumption and hardware complexity with the tradeoff being the introduction of nonlinear impairments in the transmitted signal.
A. K. Saxena +6 more
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Performance analysis of underwater-wireless communication with zero forcing precoder
2017 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom), 2017This paper is concerned with the performance analysis of a dual-hop random access network in underwater communication environment. Single gateway equipped with multiple antennas, and employing zero-forcing technique in a space division multiple access scenario, is connected a random number of independent sources which are hidden from their destination ...
Abdurrahman Alfitouri +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, Zhan Zhang, Hidetoshi Kayama
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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, 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 J. Love
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Impact of Limited Feedback on Multiple Relay Zero-Forcing Precoding Systems
2008 IEEE International Conference on Communications, 2008In recent literature, it has been shown that in a relaying network utilizing multiple relay precoding, the signal-to- noise ratio (SNR) at each destination node will scale linearly with the number of relays K, which is referred to as the distributed array gain (DAG) K. Different from the prior studies which assume perfect channel state information (CSI)
E. Zeng, S. Zhu, M. Xu
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A novel zero-forcing precoding method for multi-cell MIMO systems
Journal of Electronics (China), 2013Precoding methods at the Base Station (BS) can be used to deal with the inter-cell interference and improve the signal quality of the user especially at the cell edge. In this paper, a novel Zero-Forcing (ZF) precoding method is proposed and investigated for multi-cell Multi-Input Multi-Output (MIMO) systems. We propose a relaxed ZF precoding method by
Wen Zhou, Yongquan Jiang, Lisheng Fan
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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 ...
null Man-Wai Kwan, null Chi-Wah Kok
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