A UWB repeater with a short relaying-delay for range extension. - Chihong Cho; Honggang Zhang 005; Masao Nakagawa (WCNC, 2004)

PSWF-based direct-sequence UWB transmission using orthogonal ternary code sets. - Chihong Cho; Masao Nakagawa; Honggang Zhang 005; Zheng Zhou (CCNC, 2006)

PSWF-Based Direct-Sequence UWB Transmission Using Orthogonal Ternary Code Sets. - Chihong Cho; Honggang Zhang 005; Masao Nakagawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)

A Short Delay Relay Scheme Using Shared Frequency Repeater for UWB Impulse Radio. - Chihong Cho; Honggang Zhang 001; Masao Nakagawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007)