3G与WLAN互连的安全协议和分析

Security Protocols and Analysis of 3G-WLAN Interworking

随着无线互联网的发展,第3代移动通信系统(3G)与无线局域网(WLAN)的互连也成为研究的热点。3G系统的优势在于计费管理、漫游与安全性,WLAN系统的优势在于高带宽和低投资成本。通过3G与WLAN的互连可以实现优势互补。论文介绍了3G与WLAN互连的体系和安全结构,综述了互连的安全协议,分析了互连面临的安全挑战,并指出了现有的安全机制所存在的不足,探讨了下一步研究的方向。

With the development of wireless Internet,the interworking of the third generation （3G）-Wireless Local Area Network（WLAN） has become a focus of research.3G systems have their advantages in charge management,roaming,and security facilities,and WLAN systems have the advantages of high bandwidth and low investment cost.Interworking of 3G-WLAN has complementary advantages.This paper introduces the system of 3G-WLAN interworking and its security structure,presents a comprehensive survey of the security protocols,analyzes its security challenges,points out the disadvantages of the existing security mechanism,and discusses the possible fields for further research.