“…However, the fact that the video contents in a video sequence can require different quality-ofservice, which reflects the unequal importance of video contents, is not taken into account. In [25], the source and channel coding are jointly optimized to achieve the best video quality, under an energy constraint, which is suitable for video streaming scenarios. In [26], the authors optimized energy efficiency for MIMO-OFDM multimedia communication with quality-ofservice constraints.…”