Results 11 to 20 of about 2,974,123 (288)
Dispensing with Channel Estimation… [PDF]
IEEE Vehicular Technology Magazine, 2010 In this article, we investigate the feasibility of noncoherent detection schemes in wireless communication systems as a low-complexity alternative to the family of coherent schemes. The noncoherent schemes require no channel knowledge at the receiver for the detection of the received signal, while the coherent schemes require channel inherently complex
Mohammed El-Hajjar, Lajos Hanzo
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Harmony search aided iterative channel estimation, multiuser detection and channel decoding for DS-CDMA [PDF]
, 2010 A novel Multiuser Detection (MUD) scheme is proposed for DS-CDMA systems employing the so-called Harmony Search (HS) algorithm, which is a novel meta-heuristic optimisation method.
Rong Zhang +3 more
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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
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Efficient Estimation of Pauli Channels [PDF]
ACM Transactions on Quantum Computing, 2020 Pauli channels are ubiquitous in quantum information, both as a dominant noise source in many computing architectures and as a practical model for analyzing error correction and fault tolerance. Here, we prove several results on efficiently learning Pauli channels and more generally the Pauli projection of a quantum channel.
Steven T. Flammia, Joel J. Wallman
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Estimation in the Group Action Channel [PDF]
2018 IEEE International Symposium on Information Theory (ISIT), 2018 5 pages ...
Emmanuel Abbe +2 more
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Unitarity Estimation for Quantum Channels
IEEE Transactions on Information Theory, 2023 Estimating the unitarity of an unknown quantum channel $\mathcal{E}$ provides information on how much it is unitary, which is a basic and important problem in quantum device certification and benchmarking. Unitarity estimation can be performed with either coherent or incoherent access, where the former in general leads to better query complexity while ...
Kean Chen +3 more
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Advanced Channel Estimation for MIMO-OFDM in Realistic Channel Conditions
, 2007 An advanced decision-directed channel estimation scheme is proposed, which is suitable for employment in a wide range of multi-antenna multi-carrier systems as well as for communications over the entire range of practical channel conditions.
Akhtman, J. +3 more
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Channel Estimation Based on Statistical Frames and Confidence Level in OFDM Systems
Applied Sciences, 2018 Channel estimation is an important module for improving the performance of the orthogonal frequency division multiplexing (OFDM) system. The pilot-based least square (LS) algorithm can improve the channel estimation accuracy and the symbol error rate ...
Xiao Zhou +3 more
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Pilot design for underwater MIMO cosparse channel estimation based on compressed sensing
International Journal of Distributed Sensor Networks, 2021 In multiple-input multiple-output–orthogonal frequency-division multiplexing underwater acoustic communication systems, the correlation of the sampling matrix is the key of the channel estimation algorithm based on compressed sensing. To reduce the cross-
Yun Li +4 more
doaj +1 more source
Multipath-channel estimation and application to ionospheric channels [PDF]
Wireless Networks, 2011 0 ...
José L. Sanz-González +3 more
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