Results 11 to 20 of about 2,280 (244)

Performance of Cognitive Hybrid Automatic Repeat reQuest: Go-Back-N [PDF]

2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), 2016
In this paper, we propose a cognitive Go-Back-N Hybrid Automatic Repeat reQuest (CGBN-HARQ) scheme for a cognitive radio (CR) system to opportunistically transmit data over a primary radio (PR) channel. We model the activity of PR users (PRUs) occupying the PR channel as a Markov chain with two states: `ON' and `OFF'.
Ateeq Ur Rehman, Lie-Liang Yang, Lajos Hanzo   +2 more
exaly   +3 more sources

Hybrid Automatic Repeat Request for Downlink Rate-Splitting Multiple Access [PDF]

IEEE Transactions on Wireless Communications
This work investigates the design of Hybrid Automatic Repeat Request (HARQ) strategies for downlink Rate-Splitting Multiple Access (RSMA). The existence of private and common stream as well as their conditioning for Successive Interference Cancellation (SIC), gives rise to an expanded set of opportunities for retransmission of failed packets ...
Onur Dizdar, Bruno Clerckx, Petar Popovski   +2 more
exaly   +3 more sources

An Adaptive Hybrid Automatic Repeat Request (A-HARQ) Scheme Based on Reinforcement Learning

Electronics (Switzerland), 2023
V2X communication is susceptible to attenuation and fading caused by external interference. This interference often leads to bit error and poor quality and stability of the wireless link, and it can easily disrupt packet transmission. In order to enhance communication reliability, the 3rd Generation Partnership Project (3GPP) introduced the Hybrid ...
Shuo Jia
exaly   +2 more sources

Delay‐limited throughput analysis of cooperative hybrid automatic repeat request in asymmetric fading channels

IET Communications, 2013
This study analyses the delay‐limited throughput performance of an uplink cellular relay network utilising hybrid automatic repeat request (HARQ) protocol in which one mobile station (MS) communicates with one base station (BS) with the aid of one amplify‐and‐forward relay station (RS).
Jing Yang 0015, Pingzhi Fan, Qingchun Chen, Xianfu Lei   +3 more
exaly   +2 more sources

ARQ_HMAC: An Automatic Repeat reQuest Strategy for Hybrid MAC Protocol in Underwater Acoustic Sensor Networks

IEEE Access
In underwater sensor networks, the use of acoustic waves with large propagation delays and narrow channel bandwidth poses significant challenges for Medium Access Control (MAC) protocols in reducing the number of retransmissions caused by packet ...
van-Phuong Dao, Thu-Ha Tran
doaj   +2 more sources

A Reliability System Evaluation Model of NoC Communication with Crosstalk Analysis from Backend to Frontend

Micromachines, 2023
Network on chip (NoC) is the main solution to the communication bandwidth of a multi-processor system on chip (MPSoC). NoC also brings more route requirements and is highly prone to errors caused by crosstalk.
Xiaodong Weng, Xiaoling Lin, Yi Liu, Changqing Xu, Linjun Zhan, Shunyao Wang, Dongdong Chen, Yintang Yang   +7 more
doaj   +1 more source

Rate Adaptation Algorithm for Parallel HARQ System over Slow Fading Channel [PDF]

Jisuanji gongcheng, 2021
To improve the throughput performance of the multiple parallel Hybrid Automatic Repeat Request(HARQ) systems over a slow fading channel,this paper proposes a rate adaption algorithm based on estimation of real-time Channel State Information(CSI).A rate ...
ZHANG Junwei, BIAN Jinlai, DING Lianghui, ZHI Cheng, YANG Feng, QIAN Liang
doaj   +1 more source

Analytical Model and Feedback Predictor Optimization for Combined Early-HARQ and HARQ

Mathematics, 2021
In order to fulfill the stringent Ultra-Reliable Low Latency Communication (URLLC) requirements towards Fifth Generation (5G) mobile networks, early-Hybrid Automatic Repeat reQuest (e-HARQ) schemes have been introduced, aimed at providing faster feedback
Tatiana Rykova, Barış Göktepe, Thomas Schierl, Konstantin Samouylov, Cornelius Hellge   +4 more
doaj   +1 more source

A Hybrid Millimeter-Wave and Free-Space-Optics Communication Architecture with Adaptive Diversity Combining and HARQ Techniques

Photonics, 2023
We propose and demonstrate a hybrid communication architecture that combines millimeter-wave (MMW) in the radio frequency (RF) domain and free-space-optics (FSO) technologies using adaptive combining and hybrid automatic repeat request (HARQ) techniques.
Yinjun Liu, Xiaochuan Tan, Junlian Jia, Boyu Dong, Changle Huang, Penghao Luo, Jianyang Shi, Nan Chi, Junwen Zhang   +8 more
doaj   +1 more source

A Study on Packet Scheduling Algorithms for Healthcare Contents over Fifth Generation (5G) Mobile Cellular Network [PDF]

International Journal of Electronics and Telecommunications, 2020
This paper models the downlink Fifth Generation (5G) network that supports a flexible frame structure and a shorter Round-Trip Time (RTT) for Hybrid Automatic Repeat Request (HARQ). Moreover, the design of the renowned Time Division Multiple Access (TDMA)
Huda Adibah Mohd Ramli
doaj   +1 more source