关键词：电子信息；网络安全；无线
摘 要：Wireless communications use radio waves as media to transmit information. Wireless network is an important portion of a communication system. In this chapter, we discuss security solutions for wireless networks. It is quite common that the wireless network serves as an access network to connect a communication node to a wired network using a radio technology such as cellular technology and the technology specified in IEEE 802.11, where the wireless link is the first hop and/or the last hop in a communication path as illustrated in Figure 10.1.