Results 241 to 250 of about 13,960 (280)

Barriers and facilitators along the Hepatitis C reinfection journey: Qualitative interview study

open access: yes
Stuart A   +7 more
europepmc   +1 more source

Superposition-Aided Delay-Constrained Hybrid Automatic Repeat ReQuest [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2010
A novel Multiplexed Hybrid Automatic Repeat reQuest (M-HARQ) scheme is proposed and compared with the conventional scheme in terms of its energy efficiency while satisfying specific delay constraints, where the best transmission strategy is discussed for both schemes.
Rong Zhang, Lajos Hanzo
exaly   +3 more sources

Automatic repeat-request protocols and their queueing analysis

Computer Communications, 1990
Abstract Automatic repeat-request protocols guarantee reliable transfer of data by retransmitting packets after transmission error. Various schemes have been proposed in the literature since the 1950s. This paper presents and overview of the state-of-the-art of automatic repeat-request techniques. It also provides an overview of the analytical models
Ahmed E Kamal
exaly   +2 more sources

Stop-and-wait automatic repeat request schemes for molecular communications [PDF]

open access: yes2013 First International Black Sea Conference on Communications and Networking (BlackSeaCom), 2013
This paper provides some initial results on an investigation concerning the application of three tailored Stop-and-Wait Automatic Repeat reQuest (SW-ARQ) schemes to a diffusion based molecular communications system. Each scheme is numerically simulated and evaluated to determine their performance with regards to average time and energy consumption.
Xiayang Wang   +2 more
openaire   +2 more sources

Automatic repeat request on fading channels [PDF]

open access: yes, 1992
Automatic repeat request (ARQ) is a widespread technique for error control in data communication systems. This research examines the performance of conventional ARQ schemes over fading channels. The basic Gilbert-Elliott two-state Markov model is used to represent these channels.
Beirouti, Patrick
openaire   +2 more sources

Queuing analysis of the selective repeat automatic repeat request protocol wireless packet networks

IEEE Transactions on Vehicular Technology, 1996
This paper presents an analytical approach for analyzing the mean packet delay and mean queue length at the transmitting terminal in wireless packet networks using the selective repeat (SR) automatic repeat request (ARQ) scheme to control the errors introduced by the nonstationary transmission channel.
Romano Fantacci
exaly   +3 more sources

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

open access: yesElectronics (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
Shuo Jia
exaly   +2 more sources

Performance Analysis of Basic Automatic Repeat Request Protocols and Hybrid Automatic Repeat Request Protocol

4th International Conference on Communication Engineering and Computer Science (CIC-COCOS’2022), 2022
The size of network and internet traffic is rising spontaneously by the day, with data usage at zettabyte to petabyte scale at an exponential high rate and therefore considered to generate huge traffic along the way which causes the chance of error in transmission to be high as well.
openaire   +1 more source

Automatic retransmission rather than automatic repeat request

Proceedings of ICNP - 1994 International Conference on Network Protocols, 2002
The standard HDLC family of protocols has been designed for low to moderate BERs. But as BER increases frequent losses or corruptions of certain frames will cause extensive timeout recovery. Too many timeouts means low throughput. A new retransmission scheme is presented which depends on the transmitter to automatically initiate retransmission instead ...
Abdulaziz H. Al-Zoman   +2 more
openaire   +1 more source

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