Effective Video Multicast over Wireless Internet : Rate Allocation and End-System Based Adaptation(<Special Section>Internet Technology V)

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概要

• 論文の詳細を見る

• With the rapid growth of wireless networks and great success of Internet video, wireless video services are expected to be widely deployed in the near future. As different types of wireless networks are converging into all IP networks, i.e., the Internet, it is important to study video delivery over the wireless Internet. This paper proposes a novel end-system based adaptation protocol called Wireless Hybrid Adaptation Layered Multicast (WHALM) protocol for layered video multicast over wireless Internet. In WHALM the sender dynamically collects bandwidth distribution from the receivers and uses an optimal layer rate allocation mechanism to reduce the mismatches between the coarse-grained layer subscription levels and the heterogeneous and dynamic rate requirements from the receivers, thus maximizing the degree of satisfaction of all the receivers in a multicast session. Based on sampling theory and theory of probability, we reduce the required number of bandwidth feedbacks to a reasonable degree and use a scalable feedback mechanism to control the feedback process practically. WHALM is also tuned to perform well in wireless networks by integrating an end-to-end loss differentiation algorithm (LDA) to differentiate error losses from congestion losses at the receiver side. With a series of simulation experiments over NS platform, WHALM has been proved to be able to greatly improve the degree of satisfaction of all the receivers while avoiding congestion collapse on the wireless Internet.

• 社団法人電子情報通信学会の論文
• 2005-04-01

著者

• Lin Chuang

  Tsinghua Univ. Chn

• Lin Chuang

  Computer Science And Technology Department Tsinghua University

• Ni Qiang

  Planete Group

• YIN Hao

  Computer Science Department, Tsinghua University

• ZHUANG Jin

  Computer Science Department, Tsinghua University

• LI Bo

  Hong Kong University of Science and Technology

• Zhuang Jin

  Computer Science Department Tsinghua University

• Yin Hao

  Computer Science Department Tsinghua University

• Li Bo

  Xi'an Univ. Of Posts And Telecommunications

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• Effective Video Multicast over Wireless Internet : Rate Allocation and End-System Based Adaptation(Internet Technology V)

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