Efficient Mobility Management for Multimedia Service in Wireless IP Networks. - Sang-Bum Han; Heyi-Sook Suh; Keun-Ho Lee; Chong-Sun Hwang (ACIS-ICIS, 2005)

Authentication Based on Multilayer Clustering in Ad Hoc Networks. - Keun-Ho Lee; Sang-Bum Han; Heyi-Sook Suh; SangKeun Lee 001; Chong-Sun Hwang (EURASIP J. Wirel. Commun. Netw., 2005)

Threshold Authenticated Key Configuration Scheme Based on Multi-layer Clustering in Mobile Ad Hoc. - Keun-Ho Lee; Sang-Bum Han; Heyi-Sook Suh; Chong-Sun Hwang; SangKeun Lee 001 (APWeb Workshops, 2006)

Authentication Protocol Using Threshold Certification in Hierarchical-cluser-based Ad Hoc Networks. - Keun-Ho Lee; Sang-Bum Han; Heyi-Sook Suh; Chong-Sun Hwang; SangKeun Lee 001 (J. Inf. Sci. Eng., 2007)

Region-based Shadow Registration Scheme for Efficient Mobility Management in the SIP. - Sang-Bum Han; Keun-Ho Lee; Chong-Sun Hwang (J. Inf. Sci. Eng., 2008)