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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2006, Vol. 7 Issue (5 ): 20-    DOI: 10.1631/jzus.2006.A0837
    
An adaptive joint source and channel coding scheme for H.264 video multicasting over wireless LAN
Liu Zheng-ye, Liu Hang, Wang Yao
Six MetroTech Center, Polytechnic University, Brooklyn, NY 11201, USA; Corporate Research Lab, Thomson Inc, Princeton, NJ 08540, USA
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Abstract  This paper proposes an adaptive joint source and channel coding scheme for H.264 video multicast over wireless LAN which takes into account the user topology changes and varying channel conditions of multiple users, and dynamically allocates available bandwidth between source coding and channel coding, with the goal to optimize the overall system performance. In particular, source resilience and error correction are considered jointly in the scheme to achieve the optimal performance. And a channel estimation algorithm based on the average packet loss rate and the variance of packet loss rate is proposed also. Two overall performance criteria for video multicast are investigated and experimental results are presented to show the improvement obtained by the scheme.

Key words： Multicast over 802.11 wireless local area networks (WLAN)      Adaptive joint source and channel coding      H.264     
Received: 15 December 2005     
CLC:  TN919.8  
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Cite this article:

Liu Zheng-ye, Liu Hang, Wang Yao. An adaptive joint source and channel coding scheme for H.264 video multicasting over wireless LAN. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(5 ): 20-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2006.A0837     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2006/V7/I5 /20

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