Journal on Communications ›› 2014, Vol. 35 ›› Issue (8): 154-161.doi: 10.3969/j.issn.1000-436x.2014.08.019

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Semi-Markov decision process based congestion control algorithm for video transmission

Bo TIAN,Yi-min YANG,Shu-ting CAI   

  1. School of Automation, Guangdong University of Technology, Guangzhou 510090, China
  • Online:2014-08-25 Published:2017-06-29
  • Supported by:
    The National Natural Science Foundation of China

Abstract:

Due to the problem that the congestion control algorithm of transmission control protocol (TCP) cannot meet the requirements of quality of experience for Internet video transmission, a semi-Markov decision process based conges-tion control algorithm for video transmission was proposed. First, in order to improve the accuracy of video quality as-sessment, an online operation no-reference video quality assessment was presented. Then, the congestion control problem was formulated as a semi-Markov decision process according to the feedback of video quality assessment, and the opti-mal parameters of congestion control were obtained by solving the semi-Markov decision process. Simulation results re-veal that proposed algorithm achieves better subjective and objective video quality, and obtains well TCP-friendliness ra-tio, compared with the conventional congestion control algorithms.

Key words: congestion control, video transmission, video quality assessment, semi-Markov decision process

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