TY - JOUR T1 - Mobility management challenges in 3GPP heterogeneous networks JO - IEEE Communications Magazine PY - 2012/12/16 AU - Lopez-Perez D AU - Guvenc I AU - Chu X ED - DO - DOI: 10.1109/MCOM.2012.6384454 VL - 50 IS - 12 SP - 70 EP - 78 Y2 - 2025/11/14 ER -