Performance Analysis of Turbo Codes, LDPC Codes, and Polar Codes over an AWGN Channel in the Presence of Inter Symbol Interference [PDF]
Sensors, 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
Turbo-Equalization Using Partial Gaussian Approximation [PDF]
IEEE 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
Soft-Decision-Driven Sparse Channel Estimation and Turbo Equalization for MIMO Underwater Acoustic Communications [PDF]
IEEE 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
Accurate Channel Estimation and Adaptive Underwater Acoustic Communications Based on Gaussian Likelihood and Constellation Aggregation [PDF]
Sensors, 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
Turbo equalization and an M-BCJR algorithm for strongly narrowband intersymbol interference
, 2010 Turbo codes exhibit excellent performance gains. Turbo equalization is an iterative equalization and decoding technique. It can achieve equally impressive performance gains for communication systems. Turbo codes are send digital data over channels that require equalization, i.e. those which suffer from inter-symbol interference (ISI).
John B. Anderson, Adnan Prlja
openalex +3 more sources
A modified Alamouti scheme for frequency selective channels incorporating turbo equalization [PDF]
, 2002 The Alamouti scheme can achieve transmit diversity in the presence of frequency selective flat fading channels. The technique has received considerable attention mainly because of its processing simplicity. Recently, a modification to the Alamouti scheme
Fletcher, PN +3 more
core +4 more sources
Performance of Blind Turbo Equalizer in Indoor Channels [PDF]
Journal of Communications Software and Systems, 2011 In this paper, we consider the transmission of turbo coded symbols in the indoor radio environment. The system isaffected by the intersymbol interference (ISI) caused by the multipath time-delay spread of the transmission medium.
Mohamed Lassaad Ammari
doaj +2 more sources
A Novel Four Single-Sideband M-QAM Modulation Scheme Using a Shadow Equalizer for MIMO System Toward 5G Communications [PDF]
Sensors, 2019 Single-sideband (SSB) modulation through Hilbert transformation has successfully transmitted data using only half the bandwidth of the traditional scheme for the same amount of contained information.
Mohammed Mustafa Alhasani +3 more
doaj +2 more sources
Parallel equalization schemes for Turbo equalizer
Tongxin 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
Filtered Multitone Modulation Underwater Acoustic Communications Using Low-Complexity Channel-Estimation-Based MMSE Turbo Equalization [PDF]
Sensors, 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