Articles with "imperfect channel" as a keyword



Deep Neural Network Based Channel Estimation for Massive MIMO-OFDM Systems With Imperfect Channel State Information

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Published in 2022 at "IEEE Systems Journal"

DOI: 10.1109/jsyst.2021.3114229

Abstract: Massive multi-input multi-output (MIMO) has aroused extensive interest in communication industry, as it can effectively increase communication system capacity and reduce transmit power. For massive MIMO-orthogonal frequency division multiplexing (OFDM) systems, traditional pilot assisted channel… read more here.

Keywords: neural network; deep neural; channel estimation; massive mimo ... See more keywords
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Energy Efficient Precoder in Multi-User MIMO Systems With Imperfect Channel State Information

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Published in 2019 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2018.2882208

Abstract: This letter is on the energy efficient precoder design in multi-user multiple-input multiple-output systems which is also robust with respect to the imperfect channel state information at the transmitters. In other words, we design the… read more here.

Keywords: energy efficient; imperfect channel; energy; precoder ... See more keywords
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Performance Analysis of UAV-Enabled Over-the-Air Computation Under Imperfect Channel Estimation

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Published in 2022 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2021.3130002

Abstract: Over-the-air computation (AirComp) is a powerful technique to combine data collected from an enormous number of nodes with limited bandwidth availability. When unmanned aerial vehicles are involved in AirComp as flying fusion centers (FFCs), ultrafast… read more here.

Keywords: imperfect channel; channel estimation; channel; air computation ... See more keywords
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Space-Terrestrial Cooperation Over Spatially Correlated Channels Relying on Imperfect Channel Estimates: Uplink Performance Analysis and Optimization

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Published in 2022 at "IEEE Transactions on Communications"

DOI: 10.1109/tcomm.2022.3231880

Abstract: A whole suite of innovative technologies and architectures have emerged in response to the rapid growth of wireless traffic. This paper studies an integrated network design that boosts system capacity through cooperation between wireless access… read more here.

Keywords: channel; space; space terrestrial; spatially correlated ... See more keywords
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On Spectral Efficiency for Multiuser MISO Systems Under Imperfect Channel Information

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Published in 2021 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2021.3050983

Abstract: We consider downlink transmission whereby a multiantenna base station simultaneously transmits data to multiple single-antenna users. We focus on slow flat fading channel where the channel state information is imperfect, the channel estimation error is… read more here.

Keywords: efficiency multiuser; miso systems; multiuser miso; imperfect channel ... See more keywords