Intelligent Reflecting Surface-Enhanced OFDM: Channel Estimation and Reflection Optimization [PDF]
IEEE Wireless Communications Letters, 2019 In the intelligent reflecting surface (IRS)-enhanced wireless communication system, channel state information (CSI) is of paramount importance for achieving the passive beamforming gain of IRS, which, however, is a practically challenging task due to its
Beixiong Zheng, Rui Zhang
semanticscholar +1 more source
Deep Denoising Neural Network Assisted Compressive Channel Estimation for mmWave Intelligent Reflecting Surfaces [PDF]
IEEE Transactions on Vehicular Technology, 2020 Integrating large intelligent reflecting surfaces (IRS) into millimeter-wave (mmWave) massive multi-input-multi-ouput (MIMO) has been a promising approach for improved coverage and throughput.
Shicong Liu +4 more
semanticscholar +1 more source
Uplink Cascaded Channel Estimation for Intelligent Reflecting Surface Assisted Multiuser MISO Systems [PDF]
IEEE Transactions on Signal Processing, 2021 This paper investigates the uplink cascaded channel estimation for intelligent-reflecting-surface (IRS)-assisted multi-user multiple-input-single-output systems.
Huayan Guo, V. Lau
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On the Derivation of Optimal Partial Successive Interference Cancellation [PDF]
, 2011 The necessity of accurate channel estimation for Successive and Parallel Interference Cancellation is well known. Iterative channel estimation and channel decoding (for instance by means of the Expectation-Maximization algorithm) is particularly ...
Blasco, Francisco Lazaro +1 more
core +2 more sources
EURASIP Journal on Wireless Communications and Networking, 2022 Multicarrier modulation allows for deploying wideband systems resilient to multipath fading channels, impulsive noise, and intersymbol interference compared to single-carrier systems.
Evandro C. Vilas Boas +4 more
doaj +1 more source
Intelligent Reflecting Surface Assisted Multi-User OFDMA: Channel Estimation and Training Design [PDF]
IEEE Transactions on Wireless Communications, 2020 To achieve the full passive beamforming gains of intelligent reflecting surface (IRS), accurate channel state information (CSI) is indispensable but practically challenging to acquire, due to the excessive amount of channel parameters to be estimated ...
Beixiong Zheng +2 more
semanticscholar +1 more source
Channel Estimation for RIS-Aided mmWave MIMO Systems via Atomic Norm Minimization [PDF]
IEEE Transactions on Wireless Communications, 2020 A reconfigurable intelligent surface (RIS) can shape the radio propagation environment by virtue of changing the impinging electromagnetic waves towards any desired directions, thus, breaking the general Snell’s reflection law.
Jiguang He, H. Wymeersch, M. Juntti
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Anchor-Assisted Channel Estimation for Intelligent Reflecting Surface Aided Multiuser Communication [PDF]
IEEE Transactions on Wireless Communications, 2021 Channel estimation is a practical challenge for intelligent reflecting surface (IRS) aided wireless communication. As the number of IRS reflecting elements or IRS-aided users increases, the channel training overhead becomes excessively high, which ...
Xinrong Guan, Qingqing Wu, Rui Zhang
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Learning the MMSE Channel Estimator [PDF]
IEEE Transactions on Signal Processing, 2018 To appear in IEEE Transactions on Signal ...
David Neumann +2 more
openaire +3 more sources
Deep Residual Learning for Channel Estimation in Intelligent Reflecting Surface-Assisted Multi-User Communications [PDF]
IEEE Transactions on Wireless Communications, 2020 Channel estimation is one of the main tasks in realizing practical intelligent reflecting surface-assisted multi-user communication (IRS-MUC) systems.
Chang Liu +3 more
semanticscholar +1 more source