TY - CONF T1 - An energy efficiency and ping-pong handover ratio optimization in two-tier heterogeneous networks JO - 2018 IEEE 8th Annual Computing and Communication Workshop and Conference (CCWC) PY - 2018/02/22 AU - Zhang B AU - Qi W AU - Zhang J ED - DO - DOI: 10.1109/ccwc.2018.8301767 PB - IEEE Y2 - 2025/06/30 ER -