Browse > Article
http://dx.doi.org/10.5909/JBE.2008.13.1.25

Quality-Enhancement Technique on Video telephony over WCDMA Network  

Kim, Yo-Han (School of Information & Communication Eng., Sungkyunkwan University)
Kwak, Hyong-Won (School of Information & Communication Eng., Sungkyunkwan University)
Shin, Ji-Tae (School of Information & Communication Eng., Sungkyunkwan University)
Publication Information
Journal of Broadcast Engineering / v.13, no.1, 2008 , pp. 25-33 More about this Journal
Abstract
Video telephony is a representative service in 3G mobile network. And there have been efforts to improve quality of video telephony service in different fields. In Korea, the leading mobile service provider SKTelecom and KTF service the WCDMA network as 3G mobile network. Now, more than a million people is using the network. In this paper, we study about video telephony over WCDMA network. and propose error minimizing algorithm using cross-layer adaptation between physical layer and video codec. We simulated 3G-324M protocol with MPEG-4 video codec, and simulation results show suggested algorithm improve packet transmission rate for improving quality of video telephony service.
Keywords
WCDMA; Video Telephony; 3G-324M;
Citations & Related Records
연도 인용수 순위
  • Reference
1 W. Jia, H. Fu, B. Han and P. Au, 'Efficient Data Transmission Multiplexing in 3G Mobile Systems', Proc. of Globe Mobile Congress 2004, Oct. 2004
2 3GPP TS 26.110 v6.0.0 : Codec for circuit switched multimedia telephony service : General description(Release 6)
3 3GPP TR 26.912 Quantitative performance evaluation of H.324 Annex C over 3G
4 Yen-Chi Lee, Ming-Chang Tsai and El-Maleh, K. 'Efficient video data recovery for 3G-324M telephony over WCDMA networks,' GLOBECOM '05. IEEE Vol 1, pp 5, Nov. 2005
5 3GPP TS 26.111 v6.1.0: Codec for circuit switched multimedia telephony service: Modification to H.324(Release 6)
6 ITU-T Recommendation H.223: Multiplexing protocol for low bit rate multimedia communication
7 Sang-Wook Sohn, Hun Choi, Jae-Won Suh and Hyeon-Deok Bae, 'Error Concealment for 3G-324M Mobile Videophones,' IMTC '06. Vol 1. pp 478-482. Apr. 2005