出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：The huge demand for mobile communications with broad band and usage of new wirelessapplications motivated the development of new wireless access technologies. The recentexpansion of wireless technologies, novel applications and the advancement in mobiletechnology after UMTS-3G has been taken up to the next level by the 3GPP Long TemEvolution/System Architecture Evolution (LTE/SAE). It has achieved the realisation of betterbandwidth, full interworking with other access/backend systems using all-IP architecture withwell-defined interworking with circuit switched system. The system is defined to work acrossmultiple access networks (3GPP and non 3GPP) may be trusted or non-trusted. The securitymechanism in wireless area has evolved from original analog systems through GSM andUMTS. The GSM has focussed the security for radio path whereas UMTS has enhanced it in tonetwork functionalities. The future networks based on IP mechanism demands more securityfeatures, since the threats related to IP are also possible.
