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Automatic repeat request, the Glossary

Automatic repeat request (ARQ), also known as automatic repeat query, is an error-control method for data transmission that uses acknowledgements (messages sent by the receiver indicating that it has correctly received a message) and timeouts (specified periods of time allowed to elapse before an acknowledgment is to be received) to achieve reliable data transmission over an unreliable communication channel.^[1]

28 relations: Acknowledgement (data networks), ARQ-E, ARQ-M, Channel capacity, Communication channel, Cyclic redundancy check, Data communication, Data link layer, Error correction code, Error detection and correction, Ethernet over coax, G.hn, Go-Back-N ARQ, Hybrid automatic repeat request, IEEE 802.11, Internet Protocol, Local area network, Low-density parity-check code, OSI model, Power-line communication, Reliability (computer networking), Retransmission (data networks), Selective Repeat ARQ, Sliding window protocol, Stop-and-wait ARQ, Timeout (computing), Transmission Control Protocol, Transport layer.
Logical link control

Acknowledgement (data networks)

In data networking, telecommunications, and computer buses, an acknowledgement (ACK) is a signal that is passed between communicating processes, computers, or devices to signify acknowledgment, or receipt of message, as part of a communications protocol.

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ARQ-E

ARQ-E is a radio transmission method used to send data over short wave radio.

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ARQ-M

ARQ-M, short for Automatic Repeat reQuest, Multiplex, is a radio telegraphy protocol used to reliably forward telex messages over partially reliable radio links.

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Channel capacity

Channel capacity, in electrical engineering, computer science, and information theory, is the theoretical maximum rate at which information can be reliably transmitted over a communication channel.

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Communication channel

A communication channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking.

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Cyclic redundancy check

A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to digital data.

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Data communication

Data communication, including data transmission and data reception, is the transfer of data, transmitted and received over a point-to-point or point-to-multipoint communication channel.

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Data link layer

The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking.

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Error correction code

In computing, telecommunication, information theory, and coding theory, forward error correction (FEC) or channel coding is a technique used for controlling errors in data transmission over unreliable or noisy communication channels.

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Error detection and correction

In information theory and coding theory with applications in computer science and telecommunication, error detection and correction (EDAC) or error control are techniques that enable reliable delivery of digital data over unreliable communication channels.

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Ethernet over coax

Ethernet over Coax (EoC) is a family of technologies that supports the transmission of Ethernet frames over coaxial cable.

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G.hn

Gigabit Home Networking (G.hn) is a specification for wired home networking that supports speeds up to 2 Gbit/s and operates over four types of legacy wires: telephone wiring, coaxial cables, power lines and plastic optical fiber. Automatic repeat request and G.hn are logical link control.

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Go-Back-N ARQ

Go-Back-N ARQ is a specific instance of the automatic repeat request (ARQ) protocol, in which the sending process continues to send a number of frames specified by a window size even without receiving an acknowledgement (ACK) packet from the receiver. Automatic repeat request and Go-Back-N ARQ are logical link control.

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Hybrid automatic repeat request

Hybrid automatic repeat request (hybrid ARQ or HARQ) is a combination of high-rate forward error correction (FEC) and automatic repeat request (ARQ) error-control. Automatic repeat request and Hybrid automatic repeat request are logical link control.

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IEEE 802.11

IEEE 802.11 is part of the IEEE 802 set of local area network (LAN) technical standards, and specifies the set of medium access control (MAC) and physical layer (PHY) protocols for implementing wireless local area network (WLAN) computer communication.

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Internet Protocol

The Internet Protocol (IP) is the network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries.

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Local area network

A local area network (LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building.

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Low-density parity-check code

In information theory, a low-density parity-check (LDPC) code is a linear error correcting code, a method of transmitting a message over a noisy transmission channel.

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OSI model

The Open Systems Interconnection (OSI) model is a reference model from the International Organization for Standardization (ISO) that "provides a common basis for the coordination of standards development for the purpose of systems interconnection." In the OSI reference model, the communications between systems are split into seven different abstraction layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

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Power-line communication

Power-line communication (PLC) is the carrying of data on a conductor that is also used simultaneously for AC electric power transmission or electric power distribution to consumers.

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Reliability (computer networking)

In computer networking, a reliable protocol is a communication protocol that notifies the sender whether or not the delivery of data to intended recipients was successful.

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Retransmission (data networks)

Retransmission, essentially identical with automatic repeat request (ARQ), is the resending of packets which have been either damaged or lost.

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Selective Repeat ARQ

Selective Repeat ARQ or Selective Reject ARQ is a specific instance of the automatic repeat request (ARQ) protocol used to manage sequence numbers and retransmissions in reliable communications. Automatic repeat request and Selective Repeat ARQ are logical link control.

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References

[1] https://en.wikipedia.org/wiki/Automatic_repeat_request

Also known as ARQ protocol, Automatic repeat-request.