Power Saving Mechanism in IEEE 802.16m. - Yunju Park; Hansung Leem; Dan Keun Sung (VTC Spring, 2010)

The Effects of Cell Size on Energy Saving, System Capacity, and Per-Energy Capacity. - Hansung Leem; Seon Yeob Baek; Dan Keun Sung (WCNC, 2010)

Cooperative MS-grouping schemes based on three cost metrics for improving battery lifetime and energy efficiency. - Hansung Leem; Byoung Hoon Jung; Dan Keun Sung (PIMRC, 2011)

Placement of WiFi access points for efficient WiFi offloading in an overlay network. - JaYeong Kim; Nah-Oak Song; Byoung Hoon Jung; Hansung Leem; Dan Keun Sung (PIMRC, 2013)

Scaling Laws of Energy Efficiency Related Metrics for Varying Cell Radii in Downlink Cellular Systems. - Hansung Leem; Hu Jin; Dan Keun Sung (IEEE Commun. Lett., 2013)

Spectral-, energy-, & cost-efficient deployment of small cells in a HetNet topology. - Hansung Leem; JaYeong Kim; Byoung Hoon Jung; Dan Keun Sung (ICC, 2014)

Modeling of Power Consumption for Macro-, Micro-, and RRH-Based Base Station Architectures. - Byoung Hoon Jung; Hansung Leem; Dan Keun Sung (VTC Spring, 2014)

A novel handover scheme to support small-cell users in a HetNet environment. - Hansung Leem; JaYeong Kim; Dan Keun Sung; Yunjung Yi; Byoung-Hoon Kim (WCNC, 2015)