一、引言在过去的很多年,计算机组网的传输媒介主要依赖铜缆或光缆,构成有线局域网。但有线网络在实施过程中工程量大,破坏性强,网中的各节点移动性不强。为了解决这些问题,无线网络作为有线网络的补充和扩展,逐渐得到了普及和发展。科学技术是一把双刃剑,给人们带来方便,也给管理提出了难题。 I. INTRODUCTION In the past many years, the transmission media of computer networking relied mainly on copper cables or optical cables to form wired LANs. However, the implementation of cable networks in large quantities, destructive, network nodes mobility is not strong. In order to solve these problems, the wireless network as the supplement and expansion of the wired network has been gradually popularized and developed. Science and technology is a double-edged sword, to bring convenience to people, but also to management problems.