Sub-packet forward error correction mechanism for video streaming over wireless networks

Ming Fong Tsai, Ce Kuen Shieh, Chih Heng Ke, Der Jiunn Deng

研究成果: Article同行評審

32 引文 斯高帕斯(Scopus)


Traditional Forward Error Correction (FEC) mechanisms can be divided into Packet level FEC (PFEC) mechanisms and Byte level FEC (BFEC) mechanisms. The PFEC mechanism of recovering from errors in a source packet requires an entire FEC redundant packet even though the error involves a few bit errors. The recovery capability of the BFEC mechanism is only half of the FEC redundancy. Accordingly, an adaptive Sub-Packet FEC (SPFEC) mechanism is proposed in this paper to improve the quality of video streaming data over wireless networks, simultaneously enhancing the recovery performance and reducing the end-to-end delay jitter. The SPFEC mechanism divides a packet into n sub-packets by means of the concept of a virtual packet. The SPFEC mechanism uses a checksum in each sub-packet to identify the position of the error sub-packet. Simulation experiments show the adaptive SPFEC mechanism achieves high recovery performance and low end-to-end delay jitter. The SPFEC mechanism outperforms traditional FEC mechanism in terms of packet loss rate and video Peak Signal-to-Noise Ratio (PSNR). SPFEC offers an alternative for improved efficiency video streaming that will be of interest to the designers of the next generation environments.

頁(從 - 到)49-69
期刊Multimedia Tools and Applications
出版狀態Published - 2010 3月

All Science Journal Classification (ASJC) codes

  • 軟體
  • 媒體技術
  • 硬體和架構
  • 電腦網路與通信


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