A framework for enterprise SLA in W-CDMA networks. - Yasuhiko Matsunaga; Takashi Ono; Hiroto Sugahara; Yoshinori Watanabe; Masahiro Motoyoshi (PIMRC, 2005)

A Radio Network Co-design System for Planning, Operation, and Customer Relations Divisions. - Kosei Kobayashi; Yasuhiko Matsunaga; Takayuki Nyu; Hiroto Sugahara (APNOMS, 2008)

Individually targeted radio network optimization. - Hiroto Sugahara; Yuma Matsuda; Kosei Kobayashi; Yoshinori Watanabe; Yasuhiko Matsunaga; Kin Ming Chan; Kenneth Ko (NOMS, 2010)

Dynamic Neighbor Cell List Management for Handover Optimization in LTE. - Yoshinori Watanabe; Yasuhiko Matsunaga; Kosei Kobayashi; Hiroto Sugahara; Kojiro Hamabe (VTC Spring, 2011)

Inter-eNB Coordination-Free Algorithm for Mobility Robustness Optimization in LTE HetNet. - Yoshinori Watanabe; Hiroto Sugahara; Yasuhiko Matsunaga; Kojiro Hamabe (VTC Spring, 2013)

Interference Monitoring-Based Spectrum Management to Maximize White Space Utilization for Cognitive Radios. - Kazushi Muraoka; Hiroto Sugahara; Masayuki Ariyoshi (IEICE Trans. Commun., 2013)

A passive method for estimating overall LTE cell traffic load by using radio quality information of a user terminal. - Eiji Takahashi; Takeo Onishi; Takahiro Shiroshima; Hiroto Sugahara (APCC, 2015)

Feasibility of capacity enhancement of public safety LTE using device-to-device communication. - Kazushi Muraoka; Jun Shikida; Hiroto Sugahara (ICTC, 2015)