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16 September 2011 A novel video delivery algorithm based on 802.11e EDCA mechanism
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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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jianchao Du, Song Xiao, and Yunsong Li "A novel video delivery algorithm based on 802.11e EDCA mechanism", Proc. SPIE 8157, Satellite Data Compression, Communications, and Processing VII, 81570Y (16 September 2011);


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