Distributed Video coding based on compressed sensing is considered in this paper. Side information plays an important role in the quality of decoded non-key video frames. Existing systems generate side information based on the decoded key frames and the processes are quite complicated, increasing the computation burden at the decoder. We propose a side information generation method that is founded on the high statistical correlation between compressed sensing measurements of key frames and non-key frames. The proposed technique is simple and simulation results show that better rate distortion performance can be obtained in comparison with motion compensated interpolation.