A Dynamic Transmission Method for Scalable Video with Unequal Error Protection

With the rapid popularization and development of video applications, video cod-ing and transmission technology has attracted growing research interests. Mean-while, heterogeneous network conditions, terminal capability and requirements make it a big challenge to provide reliable and effective video service. On one hand, the high efficiently compressed video data is very sensitive to transmission errors caused by network congestion, channel fading, etc. On the other hand, video Abstract. In this paper, we propose a dynamic transmission method for scalable video with unequal error protection (UEP). Forward error correction (FEC) is used in the UEP scheme. FEC codes, such as Reed-Solomon (RS) codes, are allocated to different layers of scalable video according to their importance. The UEP scheme is applied on each group of pictures (GOP) with taking account of the data size fluctuation of GOPs. The proposed method dynamically adjusts the number of packets according to the source data size of each GOP in order to achieve similar channel code rates for different GOPs. Meanwhile, the buffer management is also considered to limit transmission delay on the sender side. Simulation results show that the proposed method can make significant improvement of average PSNR of reconstructed video in a wide range of channel coding rate and packet loss rate compared with the conventional UEP scheme