Results 11 to 20 of about 141,071 (164)

Robust MMSE Precoding Strategy for Multiuser MIMO Relay Systems with Switched Relaying and Side Information [PDF]

open access: yes, 2013
In this work, we propose a minimum mean squared error (MMSE) robust base station (BS) precoding strategy based on switched relaying (SR) processing and limited transmission of side information for interference suppression in the downlink of multiuser ...
Yang, Lie-Liang   +3 more
core   +2 more sources

Analysis and Design of Channel Estimation in Multicell Multiuser MIMO OFDM Systems [PDF]

open access: yes, 2014
This paper investigates the uplink transmission in multicell multiuser multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. The system model considers imperfect channel estimation, pilot contamination (PC), and
Xu, Peng   +3 more
core   +1 more source

Capacity and Error Performance of Reduced-Rank Transmitter Multiuser Preprocessing Based on Minimum Power Distortionless Response [PDF]

open access: yes, 2008
In this contribution we first derive a transmitter multiuser preprocessing (TMP) scheme for a general multiuser multiple-input-multiple-output (MIMO) system based on the minimum power distortionless response (MPDR) criterion, which minimizes the power in
Yang, Lie-Liang, Lie-Liang Yang
core   +2 more sources

SVD Aided Joint Transmitter and Receiver Design for the Uplink of Multiuser Detection Assisted MIMO Systems,

open access: yes, 2008
A novel singular value decomposition (SVD) aided uplink (UL) multiuser MIMO system is proposed. In contrast to the traditional minimum mean square error (MMSE) or zeroforcing (ZF) multiuser detection (MUD) technique, the proposed method exploits the ...
Yang, Lie-Liang, Liu, W., Hanzo, Lajos
core   +2 more sources

Multiuser MIMO-OFDM for Next-Generation Wireless Systems

open access: yes, 2007
This overview portrays the 40-year evolution of orthogonal frequency division multiplexing (OFDM) research. The amelioration of powerful multicarrier OFDM arrangements with multiple-input multiple-output (MIMO) systems has numerous benefits, which are ...
Jiang, M   +3 more
core   +2 more sources

Polarization spatial diversity and multiplexing MIMO surface enabled by graphene for terahertz communications. [PDF]

open access: yesNanophotonics
Abstract The terahertz (THz) frequency band has abundant spectrum resources, which is suitable for constructing communication systems with ultra‐high data rates and extremely low latency. Multiple input multiple output (MIMO) devices are crucial for realizing THz communication, and the synchronous transmission and noncorrelation of different channels ...
Huang J, Wu X, Xiong C, Zhang J, Hu B.
europepmc   +2 more sources

Receiver Multiuser Diversity Aided Multi-Stage MMSE Multiuser Detection: A Low-Complexity Detector Fast-Converging to the Optimum [PDF]

open access: yes, 2010
Design of low-complexity detection schemes that can approach near-optimum bit error rate (BER) performance in multiuser or other multiple-input multiple-output (MIMO) systems has always been highly challenging.
Yang, Lie-Liang, Lie-Liang Yang
core   +2 more sources

Progressive Refinement of Beamforming Vectors for High-Resolution Limited Feedback

open access: yesEURASIP Journal on Advances in Signal Processing, 2009
Limited feedback enables the practical use of channel state information in multiuser multiple-input multiple-output (MIMO) wireless communication systems.
Robert W. Heath   +2 more
doaj   +1 more source

Optimal Multiuser Diversity in Multi-Cell MIMO Uplink Networks: User Scaling Law and Beamforming Design

open access: yesEntropy, 2017
We introduce a distributed protocol to achieve multiuser diversity in a multicell multiple-input multiple-output (MIMO) uplink network, referred to as a MIMO interfering multiple-access channel (IMAC).
Bang Chul Jung   +3 more
doaj   +1 more source

Robust Linear MIMO in the Downlink: A Worst-Case Optimization with Ellipsoidal Uncertainty Regions

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
This paper addresses the joint robust power control and beamforming design of a linear multiuser multiple-input multiple-output (MIMO) antenna system in the downlink where users are subjected to individual signal-to-interference-plus-noise ratio (SINR ...
Tung-Sang Ng, Kai-Kit Wong, Gan Zheng
doaj   +1 more source

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