International Journal of Computer Applications
To make the most of the available data rates, coverage areas and different networks; wireless communication must be used. Vertical and horizontal handover were explored in Wi-Fi, WiMAX and ad-hoc environments. The vertical handover between Wi-Fi and other wireless technologies could be achieved using Mobile IP and Always Best Connected (ABC) concept. This paper is a comparative study between mobile IPv4 and mobile IPv6 to find out which of them performs better when it comes to send datagram from the correspondent node to the mobile node.