Packet Scheduling Algorithm for Non-real-time Service with Soft QoS Requirement in Mobile Broadband Wireless Access System. - Jeong Hwan Lee; Sung Kyung Kim; Seong-Choon Lee; Yongjoo Tcha; Chung Gu Kang 001 (ICC, 2006)

Opportunistic packet scheduling algorithm for non-real-time service with a soft QoS requirement in a mobile broadband wireless access system. - Jeong Hwan Lee; Sung Kyung Kim; Chung Gu Kang 001; Seong-Choon Lee; Yongjoo Tcha (Telecommun. Syst., 2008)

Improvement of Multicast Service Transmission by Using Unicast Channels in Cellular Networks. - Seung Joon Lee; Yongjoo Tcha; Jin Su Jung; Seong-Choon Lee (VTC Fall, 2010)

Toward enhanced mobile video services over WiMAX and LTE [WiMAX/LTE Update]. - Ozgur Oyman; Jeffrey R. Foerster; Yongjoo Tcha; Seong-Choon Lee (IEEE Commun. Mag., 2010)

Efficient Use of Multicast and Unicast Channels for Multicast Service Transmission. - Seung Joon Lee; Yongjoo Tcha; Sang Yong Seo; Seong-Choon Lee (IEEE Trans. Commun., 2011)