ZTE

ZTE Communications ›› 2010, Vol. 8 ›› Issue (1): 55-59.

• Development Field • Previous Articles     Next Articles

Technical Analysis on Application Layer Error Control in IPTV

Xia Hongfei1, Lü Xiaopeng2, Liu Feng2   

  1. 1 . ZTE Corporation , Nanjing 210012 , P. R. China ;
    2 . Image Processing and Image Communication Laboratory of Jiangsu Province , Nanjing University of Posts and Telecommunications , Nanjing 210003 , P. R. China
  • Online:2010-03-25 Published:2020-02-26
  • About author:Xia Hongfei is a senior engineer in the Pre-Research Department of the Service Research and Development Institute, ZTE Corporation. He is engaged in the pre-research of key techniques for multimedia and terminal, such as NG-CDN and digital home.

    Lü Xiaopeng is a postgraduate student of the Image Processing and Image Communication Laboratory of Jiangsu Province, Nanjing University of Posts and Telecommunications (NUPT). His research direction is Fountain Code, a channel coding technique used in realtime video transmission.

    Liu Feng is a vice dean and professor of the Image Processing and Image Communication Laboratory of Jiangsu Province, NUPT. He has long been engaged in teaching and researching image processing and multimedia communications.

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Abstract: When they provide Internet Protocol Television (IPTV ) services, IP networks face difficulties such as reduced transmission bandwidth, delay, jitter, and packet loss. A terminal-centric solution can improve the image quality by adding control policies like congestion control and error control to the receiving terminal and source code. An end-to-end application layer reliability method is usually required to satisfy IPTV requirements in the IP network. Application Layer Forward Error Correction (AL-FEC ) technology solves the problem of packet loss, and can ensure the end-to-end reliability for IPTV services.