automatic repeat request

简明释义

自动请求重复

英英释义

例句

1.The automatic repeat request 自动重传请求 protocol helps in correcting errors during file downloads.

在文件下载过程中，automatic repeat request 自动重传请求 协议有助于纠正错误。

2.Many streaming services use automatic repeat request 自动重传请求 to maintain video quality during playback.

许多流媒体服务使用 automatic repeat request 自动重传请求 来保持播放过程中的视频质量。

3.The automatic repeat request 自动重传请求 feature is often implemented in wireless communication systems.

在无线通信系统中，通常会实现 automatic repeat request 自动重传请求 功能。

4.When packets are lost, the automatic repeat request 自动重传请求 mechanism automatically resends them.

当数据包丢失时，automatic repeat request 自动重传请求 机制会自动重新发送它们。

5.In data communication, an automatic repeat request 自动重传请求 is essential for ensuring reliable transmission.

在数据通信中，automatic repeat request 自动重传请求 对于确保可靠传输至关重要。

作文

In today's digital age, the reliability of data transmission is crucial for the smooth functioning of various applications and services. One significant concept that has emerged in this context is the idea of an automatic repeat request. This term refers to a protocol used in data communication to ensure that lost or corrupted packets are retransmitted automatically. Understanding how this mechanism works can greatly enhance our comprehension of modern networking and its challenges.To begin with, let us delve into the workings of an automatic repeat request. When data is sent over a network, it is divided into smaller packets. These packets travel through various routes to reach their destination. However, due to various factors such as network congestion, interference, or hardware malfunctions, some packets may not arrive at their intended location, or they may arrive corrupted. The automatic repeat request protocol addresses this issue by implementing a system of acknowledgment and retransmission.When a sender transmits a packet, the receiver sends back an acknowledgment (ACK) once it successfully receives the packet. If the sender does not receive this acknowledgment within a specified time frame, it assumes that the packet was either lost or corrupted. Consequently, it will automatically resend the packet without requiring any manual intervention. This process continues until the sender receives the acknowledgment, ensuring that the data is accurately transmitted.The importance of automatic repeat request protocols cannot be overstated. They play a vital role in maintaining the integrity and reliability of data communications. For instance, in video streaming services, if packets are lost, it can lead to interruptions and buffering, severely impacting user experience. By using an automatic repeat request, these services can minimize disruptions, providing a smoother viewing experience.Moreover, this protocol is not limited to just streaming services; it is also widely used in various applications such as online gaming, file transfers, and voice over IP (VoIP) communications. In online gaming, real-time data transmission is critical. Any loss of information can result in lag or disconnection from the game. The implementation of an automatic repeat request ensures that players have a seamless experience, as lost packets are quickly retransmitted.However, while the automatic repeat request protocol is beneficial, it is not without its drawbacks. The retransmission of packets can lead to increased latency, especially in high-traffic networks. Additionally, if too many packets are lost in a short period, the network can become congested, leading to further delays. Therefore, it is essential to balance the use of automatic repeat request with other techniques to optimize network performance.In conclusion, the concept of automatic repeat request is fundamental to understanding modern data communication. It serves as a critical tool for ensuring the reliable transmission of data across various platforms. As technology continues to evolve, the demand for efficient data transmission methods will only increase, making the study and application of protocols like automatic repeat request even more vital. By comprehending this mechanism, we can appreciate the complexities of our interconnected world and the efforts made to keep our digital experiences seamless and enjoyable.

在当今数字时代，数据传输的可靠性对于各种应用和服务的顺利运行至关重要。在这种背景下，出现了一个重要的概念，即自动重传请求。这个术语指的是在数据通信中使用的一种协议，用于确保丢失或损坏的数据包被自动重新传输。理解这一机制的工作原理，可以大大增强我们对现代网络及其挑战的理解。首先，让我们深入了解自动重传请求的工作原理。当数据通过网络发送时，它被分成较小的数据包。这些数据包通过不同的路径到达目的地。然而，由于网络拥堵、干扰或硬件故障等各种因素，一些数据包可能无法到达预定位置，或者它们可能会损坏。自动重传请求协议通过实施确认和重传系统来解决这个问题。当发送方传输一个数据包时，接收方在成功接收到数据包后会发送回一个确认（ACK）。如果发送方在指定的时间内未收到此确认，它会假设数据包丢失或损坏。因此，它会自动重新发送该数据包，而无需任何人工干预。这个过程会持续进行，直到发送方收到确认，确保数据的准确传输。自动重传请求协议的重要性不容小觑。它在维护数据通信的完整性和可靠性方面发挥着至关重要的作用。例如，在视频流服务中，如果数据包丢失，可能导致中断和缓冲，严重影响用户体验。通过使用自动重传请求，这些服务可以最小化中断，从而提供更流畅的观看体验。此外，这个协议不仅限于流媒体服务；它还广泛应用于各种应用程序，如在线游戏、文件传输和语音通信（VoIP）。在在线游戏中，实时数据传输至关重要。任何信息的丢失都可能导致延迟或与游戏断开连接。实施自动重传请求可确保玩家拥有无缝的体验，因为丢失的数据包会迅速重新传输。然而，虽然自动重传请求协议是有益的，但它并非没有缺点。数据包的重传可能导致延迟增加，特别是在高流量网络中。此外，如果在短时间内丢失的数据包过多，网络可能会变得拥堵，从而导致进一步的延迟。因此，平衡使用自动重传请求与其他技术以优化网络性能是至关重要的。总之，自动重传请求的概念是理解现代数据通信的基础。它作为确保各种平台上数据可靠传输的重要工具。随着技术的不断发展，对高效数据传输方法的需求只会增加，使得研究和应用像自动重传请求这样的协议变得更加重要。通过理解这一机制，我们可以欣赏到互联世界的复杂性以及为保持我们的数字体验无缝和愉快而做出的努力。