Provided by: Science and Engineering Research Support soCiety
Wireless video transmission suffers from degrading the quality of video service due to dynamic change of the wireless network environment. Packet-level Forward Error Correction (FEC) enables video to be transmitted robustly as adding the redundant packets. This paper proposes two cross-layer strategies to improve the quality of video using the adaptive packet-level FEC over IEEE 802.11 networks. These strategies adaptively produce redundant packets according to the types of video frames encoded by H.264. Among the frame types, the authors frame (Intra frame) is the most important because it is referenced by other frames as well as decoded by itself without the prediction of any other frames.