A Real-time Smoothing Scheme of MPEG-4 Video for CDMA Systems

Qin Jie; Liu Bing-zhang; Zhang Xin; Yang Da-cheng

doi:10.3724/SP.J.1146.2005.01597

Volume 29 Issue 7

Jan. 2011

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Article Navigation > Journal of Electronics & Information Technology > 2007 > 29(7): 1560-1563

Qin Jie, Liu Bing-zhang, Zhang Xin, Yang Da-cheng. A Real-time Smoothing Scheme of MPEG-4 Video for CDMA Systems[J]. Journal of Electronics & Information Technology, 2007, 29(7): 1560-1563. doi: 10.3724/SP.J.1146.2005.01597

Citation:

Qin Jie, Liu Bing-zhang, Zhang Xin, Yang Da-cheng. A Real-time Smoothing Scheme of MPEG-4 Video for CDMA Systems[J]. Journal of Electronics & Information Technology, 2007, 29(7): 1560-1563. doi: 10.3724/SP.J.1146.2005.01597

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A Real-time Smoothing Scheme of MPEG-4 Video for CDMA Systems

doi: 10.3724/SP.J.1146.2005.01597

Received Date: 2005-12-09
Rev Recd Date: 2006-04-20
Publish Date: 2007-07-19

Abstract

Abstract

A real-time smoothing scheme of MEPG-4 video for CDMA systems is proposed in this paper. Due to the high peak rate and frequent rate variations nature of MPEG-4 video, it is a challenge to transmit real-time variable bit rate video on CDMA systems. In the proposed scheme, a real-time video smoothing algorithm within Group of Pictures (GOP) is carried out first, and transmitter chooses the transmission rate among CDMA physical layer rate set according to the smoothing rate. This scheme can considerably reduce the peak rate, variance and bandwidth of the transmitted signal. The simulation results show that with the proposed smoothing scheme, higher system stability and better QoS have been achieved. Moreover, the system performance gain is more considerable when the channel condition is relatively bad.

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References

陈前斌，张云麟，李乐民. 实时性MPEG视频源的图片组内平滑算法. 通信学报，2000，21(6)：42-48. Chen Qian-bin, Zhang Yun-lin, and Li Le-min. MPEG video source smoothing within GOP pattern for real-time video applications. Journal on Communications, 2000，21(6)：42-48.[2]Rexford J, Sen S, Dey J, Feng W, and Kurose J, et al.. Online smoothing of live, variable-bit-rate video[C]. Network and Operating System Support for Digital Audio and Video, 1997, Proceedings of the IEEE 7th International Workshop on 19-21 May, 1997: 235-243.[3]Lam S S, Chow S, and Yau D K Y. An algorithm for lossless smoothing of MPEG video[C]. Proceedings of ACM/ SIGCOMM, August 1994: 282-293.[4]Cyril-Daniel Iskander and P Takis Mathiopoulos. Online smoothing of VBR H263 video for the CDMA2000 and IS-95B uplinks[J].. IEEE Trans. on Multimedia.2004, 6(4):647-658[5]Frank H P Fitzek and Reisslein M. MPEG-4 and H.263 video traces for network performance evaluation[J]. IEEE Network, November/December 2001.[6]3GPP2/TSG-C.R1002, 1xEV-DV Evaluation Methodology (V13), 2003.[7][7] 3GPP2 S.R0022-Version 1.0, Video Conferencing Services - Stage 1[S], 2000.[8][8] 3GPP2 C.S0002-C v1.0, Physical layer standard for cdma2000 spread spectrum systems release C[S], 2002.[9][9] 3GPP2 C30-20030414-064R1, IS-2000 release C simulation configuration specification rev.11[S], 2003.[10][10] 3GPP TS 23.107 V6.2.0, Quality of Service (QoS) concept and architecture[S], 2004.

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