A Self-Organized Tracking Area List Mechanism for Large-Scale Networks of Femtocells
In this paper, the authors explore the concept of self-organized location management in large-scale Networks of Femtocells (NoFs). A NoF is a mesh network that provides multi-hop connectivity amongst femtocells and, in turn, to the Evolved Packet Core. One of the most challenging issues in NoFs is location management, i.e., the process of determining the location of a User Equipment (UE) in the network. Standard 3GPP location management mechanisms are not well suited for large-scale NoFs due to the overhead generated by frequent handovers and cell reselections. In this paper, they propose a self-organized Tracking Area List (TAL) mechanism that seamlessly monitors the mobility state of each UE in order to adjust the size of its individual TAL dynamically.