Results 1 to 10 of about 20,900 (152)

A Practical Guide and Assessment on Using ChatGPT to Conduct Grounded Theory: Tutorial

open access: yesJournal of Medical Internet Research
Generative large language models (LLMs), such as ChatGPT, have significant potential for qualitative data analysis. This paper aims to provide an early insight into how LLMs can enhance the efficiency of text coding and qualitative analysis ...
Yongjie Yue   +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

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   +1 more source

An Efficient Application of Turbo Coding for OFDM In-Phase/Quadrature Index Modulation

open access: yesIEEE Access, 2023
We present a method to efficiently apply turbo coding to OFDM in-phase/quadrature index modulation (OFDM-IQ-IM) for both cases of presence and absence of puncturing.
Eunchul Yoon, Soonbum Kwon, Sun Yong Kim
doaj   +1 more source

Quantum Serial Turbo Codes [PDF]

open access: yesIEEE Transactions on Information Theory, 2008
We present a theory of quantum serial turbo-codes, describe their iterative decoding algorithm, and study their performances numerically on a depolarization channel. Our construction offers several advantages over quantum LDPC codes. First, the Tanner graph used for decoding is free of 4-cycles that deteriorate the performances of iterative decoding ...
Poulin, David   +2 more
openaire   +4 more sources

Research and Implementation of Turbo Coding Technology in High-Speed Underwater Acoustic OFDM Communication

open access: yesJournal of Robotics, 2022
It is demonstrated that the fully parallel turbo decoding algorithm can achieve an approximate error correction decoding performance when 36 iterations are used and when the log-map algorithm with 6 iterations is used.
Yarang Yang, Yunpeng Li
doaj   +1 more source

Recurrent neural network based turbo decoding algorithms for different code rates

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
Application of deep learning to error control coding is gaining special attention and neural network architectures on decoding are approached to compare with conventional ones. Turbo codes conventionally use BCJR algorithm for decoding.
Shridhar B. Devamane   +1 more
doaj   +1 more source

Separate Turbo Code and Single Turbo Code Adaptive OFDM Transmissions

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
This paper discusses the application of adaptive modulation and adaptive rate turbo coding to orthogonal frequency-division multiplexing (OFDM), to increase throughput on the time and frequency selective channel.
Lei Ye, Alister Burr
doaj   +2 more sources

A Proposed Chaotic-Switched Turbo Coding Design and Its Application for Half-Duplex Relay Channel

open access: yesDiscrete Dynamics in Nature and Society, 2015
Both reliability and security are two important subjects in modern digital communications, each with a variety of subdisciplines. In this paper we introduce a new proposed secure turbo coding system which combines chaotic dynamics and turbo coding ...
Tamer H. M. Soliman   +2 more
doaj   +1 more source

5G V2X Performance Comparison for Different Channel Coding Schemes and Propagation Models

open access: yesSensors, 2023
Channel coding is a fundamental procedure in wireless telecommunication systems and has a strong impact on the data transmission quality. This effect becomes more important when the transmission must be characterised by low latency and low bit error rate,
Dimitrios Chatzoulis   +4 more
doaj   +1 more source

Enancement The Reverse Link Capacity of Third Generation Mobile Radio System [PDF]

open access: yesEngineering and Technology Journal, 2005
The paper investigates the effect of including the turbo coding in the 3G system . The bit error rate performance of the system with AWGN channel is investigated to study the effect of number of iteration , frame size , code rate and memory size of the ...
siddeq Muhaned   +2 more
doaj   +1 more source

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