Optimal forward link power allocation for data transmission in CDMA systems. - Songsong Sun; Witold A. Krzymien; Ahmad Jalali (PIMRC, 1998)

Hybrid ARQ and optimal signal - to - interference ratio assignment for high - quality data transmission in DS - CDMA. - Songsong Sun; Witold A. Krzymien (Eur. Trans. Telecommun., 2001)

Rapid Access Protocols for Discontinuous Transmission in DS-CDMA Systems. - Songsong Sun; Witold A. Krzymien; Qiang Shen; Bahman Darian (Wirel. Pers. Commun., 2002)