Quality-aware bandwidth allocation for scalable on-demand streaming in wireless networks

Jen Wen Ding, Der Jiunn Deng, Tin Yu Wu, Hsiao-Hwa Chen

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


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.

Original languageEnglish
Article number5434402
Pages (from-to)366-376
Number of pages11
JournalIEEE Journal on Selected Areas in Communications
Issue number3
Publication statusPublished - 2010 Apr 1

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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