Adjusting the ratio of the clock rates in a PDA system to reduce the jitter through wireless VoIP. - Ying-Wen Bai; Yung-De Cheng (Communications, Internet, and Information Technology, 2007)

A Simple Method for Estimating the Service Quality of VoIP. - Ying-Wen Bai; Yung-De Cheng (CCNC, 2008)