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1-持续CSMA协议下,当一个用户要发送数据时,它首先侦听信道,看是否有其他站点在传送。如果信道忙,就持续等待直到信道空闲时,便将数据送出。若发生冲突,就等待一个随机长的时间,然后重新侦听。
对于这种协议,先考虑当前帧i时的前一帧时i-1,得到前一帧时的最后一帧frame0(相对时间最大的帧)的相对时间dt0,然后再在当前帧时查看有哪些帧的相对时间会小于dt0,这些帧若是发送就会与frame0发生冲突,所以这些帧就进入持续等待状态,这些帧并没有发送。再考虑当前帧余下的帧(dt > dt0),它们中的第一帧侦听到信道处于空闲状态,所以就发送,而其他的帧由于第一帧的发送又处于等待状态。若有大于或等于2个帧的相对时间相等,且它们又同时侦听到信道空闲时,就会同时发送而导致冲突,冲突发生后的处理方法同上两个协议的一样。
-1- CSMA continued under the agreement, when a user to send data, it first interception Channel to see if there are other sites in transmission. If Channel busy, continuing to wait until the idle channel, and put more information out. If there is conflict, it is a long wait for a random time, then re-interception. Such agreements, to consider the current frame i am one of the former when i-1, be a time before the final one frame0 (relative to the time frame) the relative dt0 time, and then when the current frame to detect what the relative time frame will be less than dt0, these frames will be sent if and frame0 conflict, th
- 2022-03-03 08:55:18下载
- 积分:1
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自己做的一个聊天工具,有服务器和客户端,很简单的个,还需要修正,运行前请连上互联网,否者会出错...
自己做的一个聊天工具,有服务器和客户端,很简单的个,还需要修正,运行前请连上互联网,否者会出错-Their own tools to do a chat, a server and the client, very simple, and also need to be amended, to run before you connect to the Internet, whether it would be wrong
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- 积分:1
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初学者入门的好教材,linux下的c/s围棋程序
初学者入门的好教材,linux下的c/s围棋程序-good material, linux under the c/s Go procedures
- 2022-02-13 05:17:57下载
- 积分:1
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VisualC++实现网络
VisualC++实现的网络-网页爬虫程序源代码-VisualC++ Realize the network- the page source code reptiles
- 2023-04-07 05:35:04下载
- 积分:1
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socket serveices and socket client
socket serveices and socket client
- 2023-08-17 00:40:04下载
- 积分:1
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本软件包含一个8000元的电科院测试软件,是一款电力负荷管理系统数据传输规约测试软件,是通过电科院测试的必备工具。...
本软件包含一个8000元的电科院测试软件,是一款电力负荷管理系统数据传输规约测试软件,是通过电科院测试的必备工具。-The software contains a 8,000 yuan EPRI test software, is a load management system for data transmission protocol testing software, EPRI is essential tool for testing.
- 2023-04-11 16:30:08下载
- 积分:1
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信使小精灵,是一个简易的聊天工具。主要是演示了网络编程的主要步骤。本程序使用封装好的函数库,使得应用层不需要考虑网络消息是如何被接受和发送的,也不需要考虑数据粘
信使小精灵,是一个简易的聊天工具。主要是演示了网络编程的主要步骤。本程序使用封装好的函数库,使得应用层不需要考虑网络消息是如何被接受和发送的,也不需要考虑数据粘包和丢包的刺手问题,你只要调用相应的函数就可以了。函数库为你做好了这些工作。你只需要定义自己的协议头和消息结构体,定义好网络消息的回调函数就可以了。-Messenger elf is a simple chat tool. Mainly to demonstrate the major steps in network programming. This procedure using the package a good library, making the application layer does not need to consider how the network news is accepted and sent, nor need to consider the data packet and packet loss sticky hands of the Spurs, you simply call the corresponding function can be a . Function library for you to do a good job in those efforts. You only need to define your own protocol header and message structure, the definition of good network news can be a callback function.
- 2022-03-30 00:05:40下载
- 积分:1
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用Turbo C写的中断处理程序
用Turbo C写的中断处理程序-with Turbo C write interrupt handling procedures
- 2022-03-09 14:43:43下载
- 积分:1
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315M或413M普通无线发送接受模块的发送和接收过程。
315M或413M普通无线发送接受模块的发送和接收程序。也就是最便宜那种通信模块。-315M or 413M accept ordinary wireless sending module for sending and receiving procedures. That is, the cheapest kind of communication module.
- 2023-02-24 16:25:03下载
- 积分:1
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分析IP地址(DDX).
分析IP地址(DDX).-analysis of the IP address (DDX).
- 2022-04-08 15:56:39下载
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