高分求译!!!!!(50分)

  • 主题发起人 主题发起人 athene
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athene

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Wireless networks can be operated in two different modes—ad hoc and infrastructure. In the ad hoc mode, wireless clients communicate directly with each other, without the need of any supporting infrastructure. In the infrastructure mode, communication between clients is routed through an Access Point (AP), which is analogous to the base station in a cellular network. The ad hoc mode is used in situations where a temporary wireless network needs to be set up at short notice—a conference room, a battlefield, for example. The infrastructure mode is the more common of the two in corporate environments. In this mode, APs constantly broadcast identification beacons to advertise their presence to prospective wireless clients. These beacons contain a field known as the Service Set Identifier (SSID), which uniquely identifies the AP to the clients. Alternatively, a client may actively send out a probe request if itdo
es not receive an identification beacon from an AP in a predetermined interval of time. APs, on detecting probe requests, reply with probe responses (which contain their SSIDs) to inform the client of their presence. After having identified the optimal AP to associate with, based on signal strength, the client is now ready to perform connection initiation with the AP.
 
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中国项目经理网相关培训链接:
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报名表
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中国项目经理网
2004
 
有空关心一下初学者的问题。
http://www.delphibbs.com/delphibbs/dispq.asp?lid=2460751
 
呵呵 50分不算多呀,这么多文字,不过很简单呀,为什么不自己翻译?
无线网络可以被分为两种模式:ad hoc 和infrastructure。在ad hoc模式中,无线客户端可以直接同其他客户端通信,不需要任何的支持基础。在infrastructure模式中,客户端的交流通过一个网络桥接器(AP)来实现,类似于蜂巢式无线通讯网络的基站。ad hoc 模式在要求建立临时无线网络时使用,例如会议室、战场。Infrastructure模式更多地用在两团体性的环境中。在这种模式下,网络桥接器一直广播辨识标志信号以探测无线终端设备。这些信号包含了检验业务识别器(SSID)可识别域的信息,该信息可以唯一的标志终端设备的AP.作为选择,当客户终端不能在预定的时间间隔内从一个AP处接受到识别信息时,它可能主动发出探测请求信息。所有的AP在监测到探测请求信息时会发出包含本身SSIDs信息的应答信息。当客户端拥有了最佳的AP来建立连接后,根据信号强度,它就可以与AP进行连接的初始化了。
 
谢谢!主要是我分不多了,将就吧!
 

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