Automatic neighboring BS list generation scheme for femtocell network

We propose an automatic generation scheme of neighboring BS (Base Station) lists, utilized by an MS (Mobile Station) to determine a target BS for handoff in a femtocell network. Since the network topology of such a femtocell network can be changed by users without prior notification, a neighbor list configured manually by a system operator is no longer effective. Instead, a neighbor list might be automatically generated from a local measurement of neighboring BSs' signal strengths. However, while a BS's neighbor list should include all the geographically neighboring BSs for a proper handoff support, such a neighbor list based on only the local measurement might miss some neighboring BSs due to shadowing. In order to overcome these problems, we propose a neighbor list generation scheme by jointly utilizing the measurements of multiple BSs. The simulation results show that the proposed algorithm can handle the problem effectively.