This paper mainly talks about designing the protocol layer of USB2.0 with the programmable logical device as the carrier through the VHDL language.

本文在此主要通过VHDL语言，利用可编程逻辑器件作为载体来设计usb2.0的协议处理层模块。

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The media access control (MAC) protocol of mobile Ad Hoc networks (MANETs) is closely-related with its physics layer, most MAC protocols request the capability of carrier sense in physical layer.

无线自组网的介质访问控制(MAC)协议是与物理层密切相关的，大多数MAC协议都要求物理层具备载波感知能力。

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The signal transmitted methods have many kinds in smart-house control system, using X-10 protocol transmitting signal in power-line carrier wave application is most advanced and practicality method.

在智能家居控制系统中有很多种信号传输方式，在电力线载波方式中应用X-10协议进行信号传输是最先进也是最实用的一种。

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In 2001 Linux pranksters raced pigeons against a 40-gigabytes-per-second fiber line to test a concept a puckish American scientist first coined a decade earlier:CPIP--Carrier Pigeon Internet Protocol.

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