Call admission control schemes for DS-CDMA cellular system supporting an integrated voice/data traffic. - Hwa Young Um; Soon-Yong Lim (ISCC, 1998)

A new secure group key management scheme for multicast over wireless cellular networks. - Hwa Young Um; Edward J. Delp (IPCCC, 2006)

A Secure Group Key Management Scheme for Wireless Cellular Networks. - Hwa Young Um; Edward J. Delp (ITNG, 2006)

Selective video encryption of a distributed coded bitstream using LDPC codes. - Hwa Young Um; Edward J. Delp (Security, Steganography, and Watermarking of Multimedia Contents, 2006)

A Secure Group Key Management Scheme for Wireless Cellular Systems. - Hwa Young Um; Edward J. Delp (Int. J. Netw. Secur., 2008)