An overview of mobility management and integration methods for heterogeneous networks

Now a day's researchers are concentrating more on 4G networks which combines different kinds of networks such as wlan, cellular, satellite, adhoc network etc and form a heterogeneous network. Heterogeneous network can provide anywhere at any time connection and namely “always best connected” (ABC) network environment. In such environment mobility management such as location and handoff plays a vital role when we incorporate different networks together and lot of issues come in to picture as far as macro mobility (users move from one networks to other networks) is concerned. Thus many research papers have been published under macro mobility management and addressed the problem of handoff management issues and given enough solution to their problems. But very few of them had concentrated on architectural point of view. So in this paper we have reviewed all possible methods for integrating of two networks and finally draw which method could be suitable for integration among different networks.