Title :
An efficient multicast algorithm for the scalable extension of H.264/AVC over IEEE 802.11 WLANs
Author :
Chuah, Seong-Ping ; Chen, Zhengzhong ; Tan, Yap-Peng
Author_Institution :
Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We present an efficient resource allocation algorithm for scalable video multicast over wireless links with limited channel access time and transmit energy budget. We first introduce a multicast architecture for the scalable extension of H.264/AVC based video delivery over IEEE 802.11 WLANs. We show that the resource allocation problem is a mixed-integer program for which we propose an efficient solution. Our algorithm explicitly takes into account of relevant factors, such as quality demands of multicast clients, wireless channel conditions, packet length, and different priorities of SVC layers. We maximize the utility of video streaming whilst satisfying channel access and energy constraints. The proposed solution jointly considers PHY mode selection and SNR allocation. Our simulation results demonstrate that the proposed algorithm achieves significant performance improvements for multicast clients in resource-constrained wireless networks.
Keywords :
integer programming; resource allocation; telecommunication standards; video coding; video streaming; wireless LAN; H.264 AVC; IEEE 802.11; PHY mode selection; channel access time; mixed-integer program; multicast algorithm; packet length; quality demands; resource allocation; transmit energy budget; video multicast; video streaming; wireless LAN; wireless links; PSNR; Receivers; Resource management; Static VAr compensators; Streaming media; Wireless communication;
Conference_Titel :
Image Processing (ICIP), 2010 17th IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-7992-4
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2010.5651156