On the Secure Performance of Intelligent Reflecting Surface-Assisted HARQ Systems [PDF]
Entropy, 2023 This paper analyzes the physical layer security performance of hybrid automatic repeat request (HARQ) systems with the assistance of an intelligent reflecting surface (IRS) and aims to reveal the primary factors that enhance PLS.
Yue Wu +4 more
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Reliable and Energy-Efficient LEO Satellite Communication with IR-HARQ via Power Allocation [PDF]
Sensors, 2022 This paper examines reliable and energy-efficient transmission in low earth orbit (LEO) satellite communication systems. In particular, we analyze the link transmission characteristics of the LEO satellite to the ground user and model the channel as a ...
Hongxiu Bian, Rongke Liu
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Windowed Joint Detection and Decoding with IR-HARQ for Asynchronous SCMA Systems [PDF]
Entropy, 2023 To improve the decoding performance of asynchronous sparse code multiple access (SCMA) systems over additive white Gaussian noise (AWGN) channels, this paper proposes a novel windowed joint detection and decoding algorithm for a rate-compatible (RC ...
Mengsheng Guan, Min Zhu, Baoming Bai
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Delay-Sensitive NOMA-HARQ for Short Packet Communications [PDF]
Entropy, 2021 This paper investigates the two-user uplink non-orthogonal multiple access (NOMA) paired with the hybrid automatic repeat request (HARQ) in the finite blocklength regime, where the target latency of each user is the priority. To limit the packet delivery
Faisal Nadeem +3 more
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HARQ Performance Limits for Free-Space Optical Communication Systems [PDF]
EntropyFree-space optical (FSO) communications represent an attractive technology for future high-capacity wireless and satellite networks, offering multi-Gbps data rates, unlicensed spectrum, and built-in physical-layer security.
Giorgio Taricco
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Layered HARQ Design for LDPC-Based Multi-Level Coded Modulation [PDF]
EntropyMulti-level coded modulation (MLCM) enhances data transmission by allocating error correction more effectively to bits with higher error probabilities, thus optimizing redundancy and improving performance.
Yuejun Wei +4 more
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HARQ in Full-Duplex Relay-Assisted Transmissions for URLLC
IEEE Open Journal of the Communications Society, 2021 The Release 16 completion unlocks the road to an exciting phase pertain to the sixth generation (6G) era. Meanwhile, to sustain far-reaching applications with unprecedented challenges in terms of latency and reliability, much interest is already getting ...
Fatima Ezzahra Airod +2 more
doaj +1 more source
Reflux-related symptoms reflect poor asthma control and the presence of airway neuronal dysfunction
Allergology International, 2022 Background: Gastroesophageal reflux may be associated with the worsening of asthma by increasing cough reflex sensitivity. Hull Airway Reflux Questionnaire (HARQ) consists of 14 prevalent reflux-related symptoms.
Ryota Kurokawa +15 more
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Realised volatility prediction of high-frequency data with jumps based on machine learning
Connection Science, 2023 Asset price jumps are very common in financial markets, and they are essential to accurately predict volatility. This article focuses on 50 randomly selected stocks from the Chinese stock market, utilising high-frequency data to construct two jump models,
Gao Yuyan, He di, Mu Yan, Zhao Hongmin
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Research on HARQ Technology in Low-Orbit Satellite Communication Network
天地一体化信息网络, 2022 How to extend the HARQ technique to made it suitabled for LEO satellite communication network was explored.First the traditional HARQ technology was expounded.Based on this, the HARQ scheme based on low density parity check code (LDPC) and the HARQ ...
Runxin ZHANG +4 more
doaj +2 more sources