Results 1 to 10 of about 6,477 (204)

Multiple-Input-Multiple-Output Filtered Multitone Time Reversal Acoustic Communications Using Direct Adaptation-Based Turbo Equalization [PDF]

open access: yesSensors, 2023
This paper proposes using direct adaptation (DA)-based turbo equalization in multiple-input-multiple-output (MIMO) filtered multitone (FMT) time reversal (TR) acoustic communications to jointly suppress noise, residual co-channel interference (CCI) and ...
Lin Sun, Haisen Li
doaj   +2 more sources

Filtered Multitone Modulation Underwater Acoustic Communications Using Low-Complexity Channel-Estimation-Based MMSE Turbo Equalization [PDF]

open access: yesSensors, 2019
Filtered multitone (FMT) modulation divides the communication band into several subbands to shorten the span of symbols affected by multipath in underwater acoustic (UWA) communications.
Lin Sun   +4 more
doaj   +2 more sources

Blind Turbo Equalization of Short CPM Bursts for UAV-Aided Internet of Things [PDF]

open access: yesSensors, 2022
With the surge of Internet of Things (IoT) applications using unmanned aerial vehicles (UAVs), there is a huge demand for an excellent complexity/power efficiency trade-off and channel fading resistance at the physical layer.
Zihao Pan   +4 more
doaj   +2 more sources

An Efficient Turbo Decoding and Frequency Domain Turbo Equalization for LTE Based Narrowband Internet of Things (NB-IoT) Systems [PDF]

open access: yesSensors, 2021
This paper addresses the main crucial aspects of physical (PHY) layer channel coding in uplink NB-IoT systems. In uplink NB-IoT systems, various channel coding algorithms are deployed due to the nature of the adopted Long-Term Evolution (LTE) channel ...
Mohammed Jajere Adamu   +5 more
doaj   +2 more sources

Soft-Decision-Driven Sparse Channel Estimation and Turbo Equalization for MIMO Underwater Acoustic Communications [PDF]

open access: yesIEEE Access, 2018
Multi-input multi-output (MIMO) detection based on turbo principle has been shown to provide a great enhancement in the throughput and reliability of underwater acoustic (UWA) communication systems.
Youwen Zhang   +2 more
doaj   +3 more sources

Performance Analysis of Turbo Codes, LDPC Codes, and Polar Codes over an AWGN Channel in the Presence of Inter Symbol Interference [PDF]

open access: yesSensors, 2023
This paper discusses the results of simulations relating to the performances of turbo codes, low density parity check (LDPC) codes, and polar codes over an additive white Gaussian noise (AWGN) channel in the presence of inter symbol interference ...
Adriana-Maria Cuc   +2 more
doaj   +2 more sources

Accurate Channel Estimation and Adaptive Underwater Acoustic Communications Based on Gaussian Likelihood and Constellation Aggregation [PDF]

open access: yesSensors, 2022
Achieving accurate channel estimation and adaptive communications with moving transceivers is challenging due to rapid changes in the underwater acoustic channels.
Liang Wang   +5 more
doaj   +2 more sources

Parallel equalization schemes for Turbo equalizer

open access: yesTongxin xuebao, 2006
In order to reduce the equalization delay induced by iteration, two parallel methods were proposed respectively based on maximum a-posteriori probability (MAP) and linear minimum mean-squared error (LMMSE) equalization algo-rithm in Turbo equalization ...
CHENG Xiang1, YUAN Dong-feng1
doaj   +5 more sources

Turbo-Equalization Using Partial Gaussian Approximation [PDF]

open access: yesIEEE Signal Processing Letters, 2016
This paper deals with turbo-equalization for coded data transmission over intersymbol interference (ISI) channels. We propose a message-passing algorithm that uses the expectation-propagation rule to convert messages passed from the demodulator-decoder ...
Fleury, Bernard Henri   +5 more
core   +4 more sources

Fully Parallel Turbo Equalization for Wireless Communications

open access: yesIEEE Access, 2015
Iterative turbo equalization is capable of achieving impressive performance gains over the conventional non-iterative equalization having the same complexity, when communicating over channels that suffer from intersymbol interference (ISI).
Hoang Anh Ngo   +2 more
doaj   +4 more sources

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