Results 21 to 30 of about 142,973 (257)

Parameter Estimation of Quantum Channels [PDF]

IEEE Transactions on Information Theory, 2008
Final ...
Ji, Zhengfeng, Wang, Guoming, Duan, Runyao, Feng, Yuan, Ying, Mingsheng   +4 more
openaire   +2 more sources

The Extended-Window Channel Estimator for Iterative Channel-and-Symbol Estimation

EURASIP Journal on Wireless Communications and Networking, 2005
L'application de l'algorithme de maximisation des attentes (EM) à l'estimation des canaux aboutit à un estimateur itératif de canaux et de symboles (ICSE) bien connu. L'EM-ICSE itère entre un estimateur de symbole basé sur la récursivité avant-arrière (égaliseur BCJR) et un estimateur de canal, et peut fournir des estimations approximatives de canal ...
Renato da Rocha Lopes, John R. Barry
openaire   +3 more sources

Improved Channel Occupancy Rate Estimation [PDF]

IEEE Transactions on Communications, 2015
Channel occupancy rate (COR) is the fraction of the time that a channel is occupied, i.e., contains signal(s) in addition to noise. Estimation of COR is important, e.g., in cognitive radio systems, which can use this information for intelligently adapting their spectrum use to the operating environment.
Lehtomäki, Janne, López-Benítez, Miguel, Umebayashi, Kenta, Juntti, Markku   +3 more
openaire   +1 more source

Research on OFDM channel estimation of mine based on improved SRCNN

Meikuang Anquan
Aiming at the problem of low accuracy of traditional channel estimation algorithms in the harsh environment of underground coal mines, this paper proposes an improved Super Resolution Convdutional Network (SRCNN) for channel estimation.
Anyi WANG, Yan LIANG
doaj   +1 more source

Deep Learning-Based Wireless Channel Estimation for MIMO Uncoded Space-Time Labeling Diversity

IEEE Access, 2020
Uncoded space-time labeling diversity (USTLD) is a space-time block coded (STBC) system with labeling diversity applied to it to increase wireless link reliability without compromising the spectral efficiency.
Bhekisizwe Mthethwa, Hongjun Xu
doaj   +1 more source

Artificial intelligence for channel estimation in multicarrier systems for B5G/6G communications: a survey

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, Jefferson D. S. e Silva, Felipe A. P. de Figueiredo, Luciano L. Mendes, Rausley A. A. de Souza   +4 more
doaj   +1 more source

Discrete Fourier Transform with Denoise Model Based Least Square Wiener Channel Estimator for Channel Estimation in MIMO-OFDM

Entropy, 2022
Multiple-input Multiple-Output (MIMO) systems require orthogonal frequency division multiplexing to operate efficiently in multipath communication (OFDM).
Dhanasekaran S, SatheeshKumar Palanisamy, Fahima Hajjej, Osamah Ibrahim Khalaf, Ghaida Muttashar Abdulsahib, Ramalingam S   +5 more
doaj   +1 more source

Histogram-based Flash channel estimation [PDF]

2015 IEEE International Conference on Communications (ICC), 2015
Current generation Flash devices experience significant read-channel degradation from damage to the oxide layer during program and erase operations. Information about the read-channel degradation drives advanced signal processing methods in Flash to mitigate its effect.
Wang, Haobo, Chen, Tsung-Yi, Wesel, Richard D.   +2 more
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Multipath-channel estimation and application to ionospheric channels [PDF]

Wireless Networks, 2011
0 ...
Sanz-González, José L., Zazo, Santiago, Lvarez, Iván A.Pérez Á, López-Pérez, Javier   +3 more
openaire   +2 more sources

Channel Estimation of MIMO Relay Systems With Multiple Relay Nodes

IEEE Access, 2017
In this paper, we consider the channel estimation problem for multiple-input multiple-output wireless relay communication systems with multiple relay nodes.
Zhiqiang He, Jiaolong Yang, Xiaodan Wang, Yang Liu, Yue Rong   +4 more
doaj   +1 more source