The ever-increasing demand of mobile system is posing a great challenge for efficient call delivery due to tremendous surge in numbers of mobile subscribers. In order to scale well with increased users, the efforts are underway to develop the new location management techniques as well as to optimize the existing ones so as to keep up-to-date information about current location of mobile phones without causing much traffic load in cellular network. Various location management optimization approaches are being explored and developed by research community in recent past. This papers sheds light on various such approaches in order to give a comprehensive overview of research registered in this field..

Mobility Management Location Management (LM) Location Area (LA)