International Journal of Advanced Computer Technology (IJACT)
In the past, people would get access to the Internet to get information, use VoIP or enjoy some entertainments. However, recent development of wired & wireless network technologies and emergence of diverse smart devices have changed people's work patterns and made them get out of their office more frequently. The rapid development of wired and wireless network technologies and emergence of diverse smart devices, there has been a rising demand for decent infrastructure in which people can work without time and space constraints using their mobile device. Some advanced countries including the U.S., Canada and Europe already provide environment in which wired and wireless networks can be accessed anytime and anywhere through a simple integrated authentication process, and research resources can be shared.