Date Added: Dec 2010
Many of recent security systems are used in linkage with previously defined security systems. In particular, access control functions are used in all security systems. Network access control systems have now become the basics of security systems. In this paper, an improved business security system using network access control will be proposed. The improved security system will be established to enable businesses that become to have security systems changed as their environments are changed into wireless environments to apply security systems more effectively. A system that can be applied to all environments will be established through the establishment of an improved business security system applied with modulization and plug in systems.