IJCTT-International Journal of Computer Trends and Technology
Mobile computing offers mobile users anytime, anywhere bi-directional reliable access to the Internet. Mobile IP as a network layer routing protocol has been designed by the IETF (Internet Engineering Task Force) to provide solutions to the requirements of mobile computing. However, there are still many technical obstacles that must be overcome before mobile IP can be widely deployed. Moreover, since mobility performance is the outcome of the cooperation of different layers, merely focusing on the network layer performance is not sufficient. In other words, the operation of mobile IP depends heavily on lower layer mechanisms, and has direct implications on upper layer performance.