Iterative Joint Channel Estimation and Symbol Detection for Multi-User MIMO OFDM [PDF]
, 2006 Multiple-Input-Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems have recently attracted substantial research interest. However, compared to Single-Input-Single-Output (SISO) systems, channel estimation in the MIMO scenario
Jiang, M. +3 more
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Iterative Joint Channel Estimation and Multi-User Detection for Multiple-Antenna Aided OFDM Systems [PDF]
, 2007 Multiple-Input-Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems have recently attracted substantial research interest. However, compared to Single-Input-Single-Output (SISO) systems, channel estimation in the MIMO scenario
Akhtman, J, Jiang, M, Hanzo, L.
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Maximum entropy principle in deep learning: from theory to a practical regularizer for complex data
Научно-технический вестник информационных технологий, механики и оптикиWe hypothesize and experimentally validate that maximizing the entropy of embedding distributions under specific constraints enhances the generalization ability of machine learning models. To test this hypothesis, we propose a novel regularization method
A. V. Timofeev
doaj +1 more source
Joint Channel Impulse Response and Noise-Variance Estimation for OFDM{\slash}SDMA Systems Based on Expectation Maximization [PDF]
, 2010 A joint channel impulse response (CIR) and noise-variance estimation scheme is proposed for multi-user Multiple-Input-Multiple-Output (MIMO) Orthogonal Frequency-Division Multiplexing\,/\,Space Division Multiple Access (OFDM/SDMA) systems, which is based
Mu, Xiaomin +2 more
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Data decoding aided channel estimation techniques for OFDM systems in vehicular environment [PDF]
, 2010 L'oggetto del presente lavoro di tesi è costituito dallo studio e sviluppo di algoritmi di inseguimento di canale per sistemi basati su una modulazione di tipo Orthogonal Frequency Division Multiplexing (OFDM), con riferimento allo standard IEEE802.11p ...
Agnoletto, Andrea
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Iterative joint channel and data estimation for rank-deficient MIMO-OFDM [PDF]
, 2007 In this paper we propose a turbo-detected multi-antenna-multi-carrier receiver scheme. Following the philosophy of the turbo processing, our turbo MIMO-OFDM receiver comprises a succession of detection modules, namely the channel estimator, the space ...
Akhtman, Jos +3 more
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Inter-Carrier Interference Analysis of OFDM Systems Communicating Over Rapidly-Fading Nakagami-m Channels [PDF]
, 2006 In this contribution, the Bit Error Rate (BER) performance of OFDM systems using coherent demodulation over time-variant flat Nakagami-m fading channels is analyzed.
Zhang, J.M +3 more
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Wireless multi-carrier transmission techniques for commercial deployment in LTE, LTE-A, and 5G FR1
Journal of Electrical Systems and Information TechnologyThe multi-carrier transmission based on orthogonal frequency-division multiplexing (OFDM) footing is invented to mitigate problems of multipath echoes and dispersion effect incurred by earlier multiple channel access techniques.
Zakka Augustine +7 more
doaj +1 more source
Deep Learning Based Channel Estimation for UAVs: A Modified U-Net Approach
Advances in Electrical and Computer EngineeringA stable and reliable communication link is crucial for unmanned aerial vehicle (UAV) applications. Key challenges include the UAV's high mobility (10-100 km/h) and an unstable data link. Orthogonal frequency division multiplexing (OFDM) enables higher
GUPTA, C., YADAV, S. S.
doaj +1 more source
Design considerations and initial physical layer performance results for a space time coded OFDM 4G cellular network [PDF]
, 2002 The exponential growth of cellular radio, WLANs and the Internet sets the context for a discussion on the role and objectives of 4G. In this paper OFDM is proposed as a leading candidate for a 4G cellular communications standard.
Nix, AR +3 more
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