Results 1 to 10 of about 4,199 (203)

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

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

Carrier frequency offsets problem in recent DST‐SC‐FDMA system: Investigation and compensation

open access: yesThe Journal of Engineering, 2021
Carrier frequency offset (CFO) is a challenging problem in the uplink of the single‐carrier frequency division multiple access (SC‐FDMA) system. CFOs effect on the orthogonality between subcarriers and cause inter‐carrier interference (ICI) and multiple ...
Faisal S. Al‐kamali   +1 more
doaj   +1 more source

Low-Rank Tensor MMSE Equalization [PDF]

open access: yes2019 16th International Symposium on Wireless Communication Systems (ISWCS), 2019
New-generation wireless communication systems will employ large-scale antenna arrays to satisfy the increasing capacity demand. This massive scenario brings new challenges to the channel equalization problem due to the increased signal processing complexity.
Lucas N. Ribeiro   +2 more
openaire   +2 more sources

Performance Analysis of Circular 8-QAM Constellation with MMSE Equalizer for OFDM System Using USRP

open access: yesEmitter: International Journal of Engineering Technology, 2016
Bandwidth is very important in communication system, and it is a limited resource. In order to save the limited bandwidth resource, high order M-ary modulation is widely employed in modern communication and broadcasting systems.
Muh. Alfan Taufiqurrahman   +2 more
doaj   +3 more sources

A Low-Complexity Equalizer for Video Broadcasting in Cyber-Physical Social Systems Through Handheld Mobile Devices

open access: yesIEEE Access, 2020
In Digital Video Broadcasting-Handheld (DVB-H) devices for cyber-physical social systems, the Discrete Fractional Fourier Transform-Orthogonal Chirp Division Multiplexing (DFrFT-OCDM) has been suggested to enhance the performance over Orthogonal ...
Ahmad A. A. Solyman   +7 more
doaj   +1 more source

Improved Signal Detection Techniques for QOSTBC System in Fast Fading Channel

open access: yesJournal of Telecommunications and Information Technology, 2020
Most existing quasi-orthogonal space time block coding (QO-STBC) schemes have been developed relying on the assumption that the channel is flat or remains static during the length of the code word symbol periods to achieve an optimal antenna diversity ...
Jyoti Prasanna Patra, Poonam Singh
doaj   +1 more source

Frequency-domain transmit processing for MIMO SC-FDMA in wideband propagation channels [PDF]

open access: yes, 2009
This document is made available in accordance with publisher policies. Please cite only the published version using the reference above.
Nix, AR, Noune, MB
core   +3 more sources

ISI Cancellation Using Blind Equalizer Based on DBC Model for MIMO-RFID Reader Reception [PDF]

open access: yes, 2015
Under the dyadic backscatter channel (DBC) model, a conventional zero forcing (ZF) and minimum mean square error (MMSE) method for MIMO-RFID reader reception are not able to be rapidly cancelled inter-symbol interference (ISI) because of the error of ...
Duangsuwan, S., Promwong, S.
core   +2 more sources

Multi-segmental OFDM signals equalization with piecewise linear channel model over rapidly time-varying channels

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
For rapidly time-varying channels, the performance of (orthogonal frequency division multiplexing) OFDM systems with the conventional one tap equalizer will be significantly degraded.
Li Alex Li   +6 more
doaj   +1 more source

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