Low Complexity Radix-4 Butterfly Design for the Viterbi Decoder. - Yuan Hung Hsu; Chau-Yun Hsu; Tsung Sheng Kuo (VTC Fall, 2006)

Low complexity radix-4 butterfly design for the soft-decision Viterbi decoder. - Chau-Yun Hsu; Tsung Sheng Kuo; Yuan Hung Hsu (Microprocess. Microsystems, 2007)