摘要： 在复合形网络拓朴中，使用工作频段为２．４－２．４８３５ＧＨｚ的无线扩频通信设备、车载移动通信设备和多协议、多媒体路由器，与公用分组数据通信网紧密集成，构成具有抗干扰、抗截取、抗破密、可移动的有／无线混合城城数据通信网。网络无线主干带宽２５６ｋｂｐｓ，无线支线带宽６４ｋｂｐｓ，有线主干带宽６４ｋｂｐｓ，有线支线带宽９６ｋｂｐｓ，有／无线互为备用，可动态地在有无线链路之间选择最佳链路。支持目前常用的通信协议（如ＴＣＰ／ＩＰ，ＰＰＰ，帧中继，ＤＤＮ等）和话音、传真、图象等多媒体通信业务，无线基站位置、数量和天线的精心选择，可有效地覆盖地形地貌复杂的大面积地域。

关键词: 城域网, 无线数据通信, 移动通信

Abstract: By means of the products of radio communication and network access. the wire/wireless hybrid network of about 40 LANs and automatic teller machines (ATM) with some degree of mobility has been built in ×× city. The network provides highly reliable communication service to the business of Bank of China ×× Branch, by dynamically determining optimal routes, effectively controlling congestion and fairly allocating the channel in the face of changing link conditions, mobility, and varying traffic loads.

中图分类号: 

• TN919