Title :
Optimal joint source-channel bit allocation for MPEG-4 fine granularity scalable video over OFDM system
Author :
Xu, Jizheng ; Zhang, Qian ; Zhu, Wenwu ; Xia, Xiang-Gen ; Zhang, Ya-Qin
Author_Institution :
Microsoft Res. Asia, Beijing, China
Abstract :
In this paper, we propose an optimal bit allocation method for MPEG-4 fine granularity scalable (FGS) video over OFDM transmission. In the proposed method, we consider the joint optimal bit allocation of source and forward error correction (Reed-Solomon) codes of different rates over OFDM. Our simulation results show that our proposed approach achieves significant PSNR gain over the existing approach without channel error protection when the input and the output data rates are fixed.
Keywords :
OFDM modulation; Reed-Solomon codes; error correction codes; forward error correction; optimisation; source coding; video coding; FGS encoder; MPEG-4 fine granularity scalable video; OFDM transmission; PSNR gain; Reed-Solomon codes; code rates; fine granularity scalable encoder; fixed input/output data rates; forward error correction codes; optimal joint source-channel bit allocation; orthogonal frequency division multiplexing; video coding; Asia; Bit rate; Error correction codes; Forward error correction; MPEG 4 Standard; OFDM; PSNR; Protection; Reed-Solomon codes; Scalability;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205982