Quality Adaptation of Intra-only Coded Video Transmission over Wireless Networks

Variable wireless channel is a big challenge for real-time video applications, and the rate adaptation of real-time video streaming becomes a hot topic. Intra-video coding is important for high-quality video communi-cation and industrial video applications. In this paper, we proposed a novel adaptive scheme for real-time video transmission with intra-only coding over a wireless network. The key idea of this scheme is to estimate the instantaneous remaining capacity of the network to adjust the quality of the next several video frames, which not only can keep low queuing delay and ensure video quality, but also can respond to bandwidth changes quickly. We compare our scheme with three different schemes in the video transmission system. The experi-mental results show that our scheme has higher bandwidth utilization and faster bandwidth change response, while maintaining low queuing delay.