Results 31 to 40 of about 45,671 (180)
Feedback Interval Optimization for MISO LiFi Systems
IEEE Access, 2021 Utilizing the densely deployed light-emitting diodes (LEDs) as transmitters, multiple-input-single-output (MISO) becomes an attractive technique to improve the transmission throughput of light-fidelity (LiFi) systems.
Fan Zhang +3 more
doaj +1 more source
Entropy, 2015 In this paper, the general wiretap channel with channel state information (CSI) at the transmitter and noiseless feedback is investigated, where the feedback is from the legitimate receiver to the transmitter, and the CSI is available at the transmitter ...
Bin Dai, Zheng Ma, Linman Yu
doaj +1 more source
ELM-Based Superimposed CSI Feedback for FDD Massive MIMO System
IEEE Access, 2020 In frequency-division duplexing (FDD) massive multiple-input multiple-output (MIMO), deep learning (DL)-based superimposed channel state information (CSI) feedback has presented promising performance.
Chaojin Qing +4 more
doaj +1 more source
IEEE Access, 2022 This paper proposes the efficient downlink channel state information (CSI) feedback scheme for reconfigurable intelligent surface (RIS) assisted multi-user multi-input multi-output (MU-MIMO) wireless communication systems.
Beom-Sik Shin +4 more
doaj +1 more source
Cross-layer design for single-cell OFDMA systems with heterogeneous QoS and partial CSIT [PDF]
, 2009 — This paper proposes a novel cross-layer scheduling scheme for a single-cell orthogonal frequency division multiple access (OFDMA) wireless system with partial channel state information (CSI) at transmitter (CSIT) and heterogeneous user delay ...
Ni, Q, Skordoulis, D, Zarakovitis, C
core +1 more source
Applied Sciences, 2022 Interference alignment (IA) is a promising interference management technique to achieve the theoretical optimal degree of freedom (DoF) performance in multi-user cooperation scenarios.
Long Suo, Fei Liu
doaj +1 more source
Overhead-Aware Distributed CSI Selection in the MIMO Interference Channel
, 2015 We consider a MIMO interference channel in which the transmitters and receivers operate in frequency-division duplex mode. In this setting, interference management through coordinated transceiver design necessitates channel state information at the ...
Bengtsson, Mats +3 more
core +1 more source
Channel state information acquisition algorithm based on deep learning for IoT
物联网学报, 2019 To solve the problem of high feedback overhead when the user sends channel state information (CSI) to the base station in massive multiple input multiple output (MIMO) based on Internet of things system,a CSI feedback network based on deep learning was ...
Yong LIAO, Haimei YAO, Yuanxiao HUA
doaj +2 more sources
IEEE Access, 2021 Channel state information (CSI) is required at the transmitter for achieving the maximum potentials of multiple-input multiple-output (MIMO) systems. In fast time-variant vehicular communications channels high data rate feedback lines are required in a ...
Farnoosh Talaei +2 more
doaj +1 more source
Knowledge-Driven Meta-Learning for CSI Feedback
IEEE Transactions on Wireless CommunicationsAccurate and effective channel state information (CSI) feedback is a key technology for massive multiple-input and multiple-output systems. Recently, deep learning (DL) has been introduced for CSI feedback enhancement through massive collected training data and lengthy training time, which is quite costly and impractical for realistic deployment.
Han Xiao +8 more
openaire +2 more sources