Title :
Scalable Video Multicast over MANETs
Author :
Asif, Amir ; Nguyen, Uyen Trang ; Xu, Guohua
Author_Institution :
Dept. of Comput. Sci. & Eng., York Univ., Toronto, Ont.
Abstract :
The paper presents a video multicasting architecture for mobile ad-hoc networks (MANETs). The proposed framework uses the scalable, noncausal predictive codec with vector quantization and conditional replenishment (SNP/VQR) for encoding video into multiple layers of data streams at bit rates between 10 Kbps to 500 Kbps. A rate adaptive multicast (RAM) routing algorithm is proposed, which dynamically adjusts the transmission rate based on the channel quality to obtain the optimum throughput. The scalability of SNP/VQR, coupled with RAM, enables strong resilience against bandwidth fluctuations as well as the capability to support a range of heterogeneous mobile receivers. Experimental results demonstrate that uninterrupted video of reasonable quality is multicasted with the proposed architecture even under heavy traffic conditions
Keywords :
ad hoc networks; mobile radio; multicast communication; radio receivers; telecommunication network routing; telecommunication traffic; vector quantisation; video codecs; video coding; video streaming; wireless channels; 10 to 500 Kbit/s; MANET; RAM routing algorithm; SNP-VQR; bandwidth fluctuation; channel quality; conditional replenishment; data stream; heavy traffic; heterogeneous mobile receiver; mobile ad-hoc network; rate adaptive multicast; scalable noncausal predictive codec; vector quantization; video encoding; video multicasting architecture; Ad hoc networks; Bit rate; Codecs; Couplings; Multicast algorithms; Routing; Scalability; Streaming media; Throughput; Vector quantization;
Conference_Titel :
Multimedia Signal Processing, 2006 IEEE 8th Workshop on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-9751-7
Electronic_ISBN :
0-7803-9752-5
DOI :
10.1109/MMSP.2006.285340
