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Proceedings Paper

A novel video delivery algorithm based on 802.11e EDCA mechanism
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Paper Abstract

In EDCA-based wireless networks, all video packets are identically mapped without differentiation into one of four access categories to be transmitted so that the delivery performance is restricted. Even though some researches remapped video packets by differentiating their significance according to packets types, they refrained from more gains since they adopted a type of fixed significance model and mapping scheme. In this paper, a new model for video packet significance is built and then a dynamically mapping algorithm based on the packet significance model is proposed to improve the performance of video delivery over EDCA-based wireless networks. The proposed algorithm detects periodically the available resources of each AC and makes full use of the all ACs to transmit video packets. Simulation results demonstrate that the proposed algorithm improves performance of video delivery and increases the image quality.

Paper Details

Date Published: 16 September 2011
PDF: 9 pages
Proc. SPIE 8157, Satellite Data Compression, Communications, and Processing VII, 81570Y (16 September 2011); doi: 10.1117/12.895212
Show Author Affiliations
Jianchao Du, Xidian Univ. (China)
Song Xiao, Xidian Univ. (China)
Yunsong Li, Xidian Univ. (China)


Published in SPIE Proceedings Vol. 8157:
Satellite Data Compression, Communications, and Processing VII
Bormin Huang; Antonio J. Plaza; Carole Thiebaut, Editor(s)

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