Results 31 to 40 of about 6,477 (204)

Robust turbo equalization under channel uncertainties

open access: yes2011 IEEE Radio and Wireless Symposium, 2011
Robust turbo equalization over discrete time channels with inter-symbol interference (ISI) in the presence of channel uncertainties is investigated. The turbo equalization framework proposed in this paper contains a linear equalizer (LE) and a trellis based decoder.
Kalantarova, Nargiz   +2 more
openaire   +2 more sources

Approximate inference in hidden Markov models using iterative active state selection [PDF]

open access: yes, 2006
The inferential task of computing the marginal posterior probability mass functions of state variables and pairs of consecutive state variables of a hidden Markov model is considered.
Andrieu, C, Piechocki, RJ, Vithanage, CM
core   +2 more sources

Sparse decision feedback equalization for underwater acoustic channel based on minimum symbol error rate

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2021
Underwater Acoustic Channels (UAC) have inherent sparse characteristics. The traditional adaptive equalization techniques do not utilize this feature to improve the performance.
Zhenzhong Wang   +3 more
doaj   +1 more source

Low Complexity Time-Concatenated Turbo Equalization for Block Transmission Without Guard Interval: Part 1—The Concept [PDF]

open access: yes, 2012
This paper proposes a novel time-concatenated turbo equalization technique, chained turbo equalization (CHATUE), that allows block transmission systems to eliminate the guard interval (GI), while achieving excellent performance.
Khoirul Anwar, Tad Matsumoto
core   +1 more source

Convergence analysis for turbo-equalization [PDF]

open access: yesProceedings. 2001 IEEE International Symposium on Information Theory (IEEE Cat. No.01CH37252), 2002
We investigate a sub-optimal iterative receiver for joint equalization and decoding called the turbo-equalizer. We view the evolution of the error variance of the transmitted symbols through the iterative processing, obtaining the convergence analysis.
A. Roumy   +4 more
openaire   +2 more sources

Virtual Space-Time DiversityTurbo Equalization Using Cluster Sparse Proportional Recursive Least Squares Algorithm for Underwater Acoustic Communications

open access: yesApplied Sciences, 2023
The oceanic positioning, navigation and timing (PNT) network requires high-quality underwater acoustic message transmission. Turbo equalization technology has exhibited superior performance for underwater acoustic (UWA) communications compared with ...
Zhen Han   +3 more
doaj   +1 more source

Iterative channel equalization, channel decoding and source decoding

open access: yes, 2005
The performance of soft source decoding is evaluated over dispersive AWGN channels. By employing source codes having error-correcting capabilities, such as Reversible Variable-Length Codes (RVLCs) and Variable-Length Error-Correcting (VLEC) codes, the ...
Hanzo, L., Wang, J., Yang, L-L.
core   +1 more source

Frequency Domain Hybrid-ARQ Chase Combining for Broadband MIMO CDMA Systems [PDF]

open access: yes, 2009
In this paper, we consider high-speed wireless packet access using code division multiple access (CDMA) and multiple-input multiple-output (MIMO). Current wireless standards, such as high speed packet access (HSPA), have adopted multi-code transmission ...
Ait-Idir, Tarik   +3 more
core   +4 more sources

Turbo equalization and its improvement in BICM-ID based on hard-decision

open access: yesTongxin xuebao, 2009
Conventional receivers executed equalization and channel decoding independently. Turbo equalization was a technique which combined equalization and decoding.
ZHAO Chun-hui1, LV Qiang1, BI Wen-bin2
doaj   +2 more sources

Improving SC-FDMA performance by Turbo Equalization in UTRA LTE Uplink [PDF]

open access: yes, 2008
Turbo equalization is known as an advanced iterative equalization and decoding technique that allows to enhance the performance of the data transmission over a frequency selective fading channel.
Berardinelli, Gilberto   +3 more
core   +2 more sources

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