无线信道远程网桥的设计

网桥是一种网络互联设备(局域网),可以拓展网络的物理范围、过滤通信量、减轻网络负载。而无线网桥能够将地域上分散的网络互联,在距离较远或敷设专用的有线线路困难时,使网络互联更加快捷。但是无线信道有不稳定、误码率高、容易受干扰等缺点,有线数据帧不能通过无线信道直接传输,必须采取一定的措施保证数据帧稳定可靠传输,如在无线数据链路层数据分段重组、使用ARQ协议,物理层采用纠错编译码等。

Design of Wireless Remote Bridge

Bridge is a device to interconnect LANs (local area network) which can expand the distance of the network and decrease the communication load. The LANs which are distributed in different areas can be interconnected by wireless net bridge. In the case of far distance or when it's difficult to implement cable communications, the bridge makes network interconnection easy. The IP data can't be transmitted on wirelesss channel directly because of such disadvantages of it as instability, high BER and sensitivity to interferences. So it is necessary to take some measures to ensure transmission stability of data frame, for example, using the protocol of ARQ and parted paragraph in wireless DLC and FEC in PHY.