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題名 Adaptive retransmission to improve MPEG-4 video streaming quality in WiMAX
作者 張宏慶
Jang, Hung-Chin
貢獻者 International Society for Research in Science and Technology
Jumper Consulting Investment Ltd.
國立政治大學資訊科學系
關鍵詞 WiMAX
日期 2009-07
上傳時間 27-May-2010 16:51:30 (UTC+8)
摘要 In this paper we provide better quality of MPEG-4 video streaming under the superior IEEE 802.16 wireless network. There are three types of frames used in video compression: I-frame, P-frame and B-frame. Different types of frames have different significances on video quality. In this paper we propose an adaptive retransmission mechanism to improve MPEG-4 video streaming quality based on both deadline and decoding importance of each frame. We first construct a GOP (Group Of Pictures) tree from a GOP structure. Then we assign different weights to I/P/B-frames to form a GOP weight tree. Next, we classify those frames into "backbone frames" and "non-backbone frames". The backbone frames are allowed to have more retransmissions than those of non-backbone frames. As a further enhancement, we apply Lagrange multiplier method to non-backbone frames to maximize the number of decoding frames. Simulation results show that the proposed method outperforms IEEE 802.16 Standard and Priority Queue in average throughput, average lost & invalid frame and PSNR.
關聯 International Conference on High Performance Computing, Networking and Communication Systems 2009, HPCNCS 2009, Pages 114-119
2009 International Conference on High Performance Computing, Networking and Communication Systems, HPCNCS 2009; Orlando, FL; United States; 13 July 2009 到 16 July 2009; 代碼 96746
資料類型 conference
dc.contributor International Society for Research in Science and Technologyen_US
dc.contributor Jumper Consulting Investment Ltd.en_US
dc.contributor 國立政治大學資訊科學系en_US
dc.creator (作者) 張宏慶zh_TW
dc.creator (作者) Jang, Hung-Chin-
dc.date (日期) 2009-07en_US
dc.date.accessioned 27-May-2010 16:51:30 (UTC+8)-
dc.date.available 27-May-2010 16:51:30 (UTC+8)-
dc.date.issued (上傳時間) 27-May-2010 16:51:30 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/39838-
dc.description.abstract (摘要) In this paper we provide better quality of MPEG-4 video streaming under the superior IEEE 802.16 wireless network. There are three types of frames used in video compression: I-frame, P-frame and B-frame. Different types of frames have different significances on video quality. In this paper we propose an adaptive retransmission mechanism to improve MPEG-4 video streaming quality based on both deadline and decoding importance of each frame. We first construct a GOP (Group Of Pictures) tree from a GOP structure. Then we assign different weights to I/P/B-frames to form a GOP weight tree. Next, we classify those frames into "backbone frames" and "non-backbone frames". The backbone frames are allowed to have more retransmissions than those of non-backbone frames. As a further enhancement, we apply Lagrange multiplier method to non-backbone frames to maximize the number of decoding frames. Simulation results show that the proposed method outperforms IEEE 802.16 Standard and Priority Queue in average throughput, average lost & invalid frame and PSNR.-
dc.language en-USen_US
dc.language.iso en_US-
dc.relation (關聯) International Conference on High Performance Computing, Networking and Communication Systems 2009, HPCNCS 2009, Pages 114-119en_US
dc.relation (關聯) 2009 International Conference on High Performance Computing, Networking and Communication Systems, HPCNCS 2009; Orlando, FL; United States; 13 July 2009 到 16 July 2009; 代碼 96746-
dc.subject (關鍵詞) WiMAXen_US
dc.title (題名) Adaptive retransmission to improve MPEG-4 video streaming quality in WiMAXen_US
dc.type (資料類型) conferenceen