Results 91 to 100 of about 2,052 (205)

Reliable and Timely Short‐Packet Communications in Joint Communication and Over‐the‐Air Computation Offloading Systems: Analysis and Optimization

open access: yesInternational Journal of Intelligent Systems, Volume 2024, Issue 1, 2024.
This paper addressed the trade‐off between timeliness and reliability in joint communication and over‐the‐air computation offloading (JCACO) system under short‐packet communications (SPCs). The inevitable decoding errors introduced by SPC lead to errors in the data aggregation process of over‐the‐air computation (AirComp).
Wei Zhao   +5 more
wiley   +1 more source

A Novel HARQ Design for RSMA Networks

open access: yesIEEE Internet of Things Journal
Rate splitting multiple access (RSMA) has a variety of advantages, including higher throughput, enhanced capacity, and network efficiency, which makes it suitable for beyond fifth generation (5G) networks. Since the combining and splitting operations are performed on the transmitter side, one of the challenging aspects of RSMA is how a retransmission ...
Shaima' S. Abidrabbu   +2 more
openaire   +1 more source

HARQ enriched feedback design for 5G technology [PDF]

open access: yes, 2016
It is well recognized in the literature that the performance of the hybrid automatic repeat request (HARQ) transmission can be improved by adapting the transmission parameters through exploiting extra information from the receiver over the feedback ...
Khosravirad, Saeed R.   +7 more
core   +1 more source

Research of Downlink HARQ Mechanism in LTE TDD System

open access: yesDianxin kexue, 2013
Based on a detailed research on the mechanism of downlink data transmission in LTE system,an errorfree HARQ solution to realize the downlink data transmission process was provided.According to the relations of the feedback delay,associated decision of ...
Fatang Chen, Cui Wan, Xi Fan
doaj   +2 more sources

Calcul de la probabilité d'erreur pour HARQ-CC avec macro-diversité basée sur MRC. [PDF]

open access: yes, 2020
In this report, we study a protocol with hybrid automatic repeat request (HARQ) when it is combined with macro-diversity. We derive the analytic formula of the probability of error using HARQ-Chase Combining (HARQ-CC) with the maximum ratio combining ...
Alhajj, Tania, Lagrange, Xavier
core   +2 more sources

Rate-Compatible Polar- and LDPC-Coded Hybrid ARQ Aided Reverse Reconciliation in CV-QKD

open access: yesIEEE Open Journal of Vehicular Technology
Continuous-variable quantum key distribution (CV-QKD) systems face challenges in maintaining efficient reconciliation over long distances due to the time variant signal-to-noise ratio (SNR) imposed by channel quality fluctuations.
Dingzhao Wang   +4 more
doaj   +1 more source

Design of Rate-Compatible Parallel Concatenated Punctured Polar Codes for IR-HARQ Transmission Schemes

open access: yesEntropy, 2017
In this paper, we propose a rate-compatible (RC) parallel concatenated punctured polar (PCPP) codes for incremental redundancy hybrid automatic repeat request (IR-HARQ) transmission schemes, which can transmit multiple data blocks over a time-varying ...
Jian Jiao   +5 more
doaj   +1 more source

Effective Capacity Analysis for VR-HARQ Systems [PDF]

open access: yes, 2019
Considering the widespread use of effective capacity in cross-layer design and the extensive existence of renewal service processes in communication networks, this paper thoroughly investigates the effective capacity for renewal processes.
Shi, Zheng   +11 more
core   +1 more source

HARQ Retransmissions in C-V2X: A BSM Latency Analysis [PDF]

open access: yes, 2023
Cellular vehicular-to-everything (C-V2X) systems offer the potential for improving road safety, in part through the exchange of periodic basic safety messages (BSMs) between nearby vehicles.
Vukovic, Ivan   +2 more
core   +1 more source

HARQ scheme for sparse code multiple access based on network coding

open access: yesTongxin xuebao, 2022
To fulfill the stringent reliability and throughput demand of the beyond-5G and the forthcoming 6G, a novel network coding (NC) based hybrid automatic retransmission request (HARQ) for low-density parity check (LDPC) coded SCMA was proposed.Two ...
Ke LAI, Jing LEI, Wei LIU, Lei WEN
doaj   +2 more sources

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