automatic repeat request (ARQ)

Contributor(s): Sandi Seidle

Automatic repeat request (ARQ) is a protocol for error control in data transmission. When the receiver detects an error in a packet, it automatically requests the transmitter to resend the packet. This process is repeated until the packet is error free or the error continues beyond a predetermined number of transmissions. ARQ is sometimes used with Global System for Mobile (GSM) communication to guarantee data integrity.

This was last updated in June 2007

Dig Deeper on Open source networking

Join the conversation

1 comment

Send me notifications when other members comment.

Please create a username to comment.

This is wonderful content and I am so happy to see it. My computer science teacher sent this to us, and it really made me happy. Such a wonderfully written article, for such an amazing piece of technology. Such an elegant solution to such a big problem. I love computer science, and this makes me so happy. Have a wonderful day.


File Extensions and File Formats




  • How do I size a UPS unit?

    Your data center UPS sizing needs are dependent on a variety of factors. Develop configurations and determine the estimated UPS ...

  • How to enhance FTP server security

    If you still use FTP servers in your organization, use IP address whitelists, login restrictions and data encryption -- and just ...

  • 3 ways to approach cloud bursting

    With different cloud bursting techniques and tools from Amazon, Zerto, VMware and Oracle, admins can bolster cloud connections ...