Adaptive time division multiplexing transmission scheme for the distributed video coding

In recent years, most of the research about distributed video coding focus on how to get the exact side-information and virtual channel estimation parameters in order to achieve better rate-distortion performance. However, there is quite few research about the practical transmission issue, i.e., no practical and effective transmission scheme has been proposed yet for distributed video coding (DVC). Feedback channel based DVC can usually achieve better rate-distortion performance, while leading to long delay because of feed-backs. The traditional video transmission scheme, which doesn't consider the characteristics of DVC, will introduce long delay since the encoder needs to wait until receiving the feedback information. As a result, the effective bandwidth of the network will be reduced greatly. In this paper, we have proposed an adaptive time division multiplexing video transmission scheme for the DVC which can reduce the delay due to waiting feed-backs. Experimental results show that our method can reduce transmission time effectively. And as a result, it can improve the effective bandwidth and the buffer utilization rate, thus higher transmission efficiency can be achieved.