Quality-Aware Bandwidth Allocation for Scalable On-Demand Streaming in Wireless Networks

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題名:	Quality-Aware Bandwidth Allocation for Scalable On-Demand Streaming in Wireless Networks
作者:	Ding, Jen-wen;Deng, Der-Jiunn;Wu, Tin-Yu;Chen, Hsiao-Hwa
貢獻者:	淡江大學電機工程學系
關鍵詞:	Bandwidth allocation;MPEG-4 FGS video;NGN/IMS;video broadcasting;video streaming
日期:	2010-04
上傳時間:	2011-10-15 01:13:31 (UTC+8)
出版者:	Piscataway: Institute of Electrical and Electronics Engineers
摘要:	In this paper, we propose a scalable transport scheme for delivering on-demand video streams over broadband wireless networks in next-generation network/IP multimedia subsystem (NGN/IMS) architecture. The proposed transport scheme makes use of fine-granular-scalability (FGS) encoded videos to accommodate high bandwidth variation of wireless networks. We formulate the bandwidth allocation to FGS-encoded streams as a resource allocation problem and develop a quality-aware bandwidth allocation scheme, called QABA. With QABA, the proposed transport scheme can dynamically adjust the bit rate allocated to different streams to maximize the overall perceptual quality when available network bandwidth varies with time. QABA is theoretically proven to be able to find the optimal bandwidth allocation for all on-demand streams. To validate the effectiveness of QABA, extensive trace-based simulations are performed.
關聯:	IEEE Journal on Selected Areas in Communications 28(3), pp.366-376
DOI:	10.1109/JSAC.2010.100408
顯示於類別:	[電機工程學系暨研究所] 期刊論文

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