TY - GEN
T1 - A cross-layer scheduling algorithm for H.264 video transmission over wireless networks
AU - Li, Fan
AU - Liu, Guizhong
AU - He, Lijun
PY - 2009
Y1 - 2009
N2 - A cross-layer scheduling algorithm that streams pre-coded H.264 video over wireless networks to multiple users is presented. The algorithm can be used with the emerging wireless standards such as IEEE 802.16 and HSDPA. Our focus is maximizing the video perceptual quality after delivery with constraint of the limited wireless resources and the delay requirements from the practical point of view. At the application layer, the relative importance of each packet to the video perceptual quality is estimated by a Packet Relative Importance Index in a low complexity computation, which is evaluated directly in video compressed domain. At the physical layer, the channel state information is derived and an adaptive modulation coding design is introduced. Thus, the scheduling algorithm at the media access control layer for multiple mobile users is proposed depending on the information provided by the application and physical layer with the objective of maximizing the video quality. Simulations show that the proposed scheme performs significantly than the conventional scheduling schemes for video transmission.
AB - A cross-layer scheduling algorithm that streams pre-coded H.264 video over wireless networks to multiple users is presented. The algorithm can be used with the emerging wireless standards such as IEEE 802.16 and HSDPA. Our focus is maximizing the video perceptual quality after delivery with constraint of the limited wireless resources and the delay requirements from the practical point of view. At the application layer, the relative importance of each packet to the video perceptual quality is estimated by a Packet Relative Importance Index in a low complexity computation, which is evaluated directly in video compressed domain. At the physical layer, the channel state information is derived and an adaptive modulation coding design is introduced. Thus, the scheduling algorithm at the media access control layer for multiple mobile users is proposed depending on the information provided by the application and physical layer with the objective of maximizing the video quality. Simulations show that the proposed scheme performs significantly than the conventional scheduling schemes for video transmission.
KW - Cross-layer design
KW - H.264, video streaming
KW - Scheduling algorithm
KW - Wireless networks
UR - https://www.scopus.com/pages/publications/77950112455
U2 - 10.1109/IWCLD.2009.5156513
DO - 10.1109/IWCLD.2009.5156513
M3 - 会议稿件
AN - SCOPUS:77950112455
SN - 9781424433018
T3 - 2009 2nd International Workshop on Cross Layer Design, IWCLD '09
BT - 2009 2nd International Workshop on Cross Layer Design, IWCLD '09
T2 - 2009 2nd International Workshop on Cross Layer Design, IWCLD '09
Y2 - 11 June 2009 through 12 June 2009
ER -