V2EX data channel

Data Channel

释义 Definition

“data channel” 指数据通道:在通信、网络或系统内部用于传输数据的逻辑或物理路径(例如无线电信道、网络链路、总线通道、或协议中的专用数据承载通道)。常与“控制通道(control channel)”相对;控制通道主要传输管理/信令信息,而数据通道承载用户数据。

发音 Pronunciation

/det tnl/(也常见 /dt tnl/)

例句 Examples

The router assigns a separate data channel for video streaming.
路由器为视频流分配了一个独立的数据通道。

In the new protocol, encryption is applied end-to-end across the data channel while control messages remain lightweight to reduce overhead.
在新协议中,加密在数据通道上实现端到端保护,而控制消息保持轻量以降低开销。

词源 Etymology

“data” 来自拉丁语 datum(“给出的东西”),后引申为“资料、数据”;“channel” 源自拉丁语 canalis(“管道、水道”),在工程与通信领域中引申为“传输信息的通路/信道”。合在一起,“data channel” 就是“用于传输数据的通道/信道”。

相关词 Related Words

文献与作品 Literary Works

  • Claude E. Shannon, A Mathematical Theory of Communication(《通信的数学理论》):经典信息论文本中系统讨论“信道/通道(channel)”概念,常与数据传输语境并用。
  • John G. Proakis, Digital Communications(《数字通信》):大量使用“data channel/communication channel”等表述讨论数字数据在信道中的传输与误码控制。
  • Simon Haykin, Communication Systems(《通信系统》):介绍通信系统结构时常区分承载数据的通道与控制/信令路径。
  • David J. C. MacKay, Information Theory, Inference, and Learning Algorithms(《信息论、推断与学习算法》):在信息论章节中以“channel”建模数据传输过程,讨论容量与噪声影响。
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