Title :
A cross-layer design for transmission of scalable H.264 video over IEEE 802.11e networks
Author :
Li, Xiaofeng ; Ren, Tonghua ; Xu, Jin
Author_Institution :
Schools of Commun. & Inf. Eng., UESTC, Chengdu, China
Abstract :
A new cross-layer architecture is employed in this paper for the transmission of scalable H.264 video over IEEE 802.11e networks. The architecture enables flexible using of access categories (ACs) for video transmitting based on information of both application and MAC layer. A novel significance-based early detection (SBED) algorithm is proposed, which maximizes the transmission of significant SVC packets. The SBED algorithm allocates each SVC packet to an appropriate AC based on both the significance of data and the traffic load of ACs. Experimental results show that our scheme outperforms the existing schemes of [7] and of [8] with maximum quality gains of 0.8385dB and 1.978dB respectively.
Keywords :
DiffServ networks; telecommunication standards; video coding; wireless LAN; IEEE 802.11e networks; MAC layer; SVC packets; access categories; differentiated services; scalable H.264 video; significance-based early detection; Algorithm design and analysis; Automatic voltage control; IEEE 802.11e Standard; Scalability; Static VAr compensators; Streaming media; Video coding; 802.11e; H.264/SVC transmission; cross-layer design; differentiated services;
Conference_Titel :
Computational Problem-Solving (ICCP), 2010 International Conference on
Conference_Location :
Lijiang
Print_ISBN :
978-1-4244-8654-0
