Patent ID: 8505059

Claim:
A coding rate adjustment method for adaptive video transmission based on a cross-layer design with side information (CLDS) protocol, the method comprising: acquiring, by a video reception apparatus, channel status side information from a video stream received through a network from a video transmission apparatus; estimating, by the video reception apparatus, a bit error rate (BER) for each video packet of the video stream using the channel status side information; estimating, by the video reception apparatus, channel capacity for a current channel cycle based on the estimated BER; providing, by the video reception apparatus, the estimated channel capacity to the video transmission apparatus; predicting, by the video transmission apparatus, channel capacity for a next channel cycle using the estimated channel capacity that is provided from the video reception apparatus; and adjusting, by the video transmission apparatus, a video coding rate and a channel coding rate, to optimize video quality, within a permissible range of the predicted channel capacity by using a channel capacity prediction error distribution and a video rate distortion (RD) function, wherein the video coding rate for the next channel cycle is adjusted to have a value that a peak signal to noise ratio(PSNR) of video in transmission can be optimized for the next channel cycle, and wherein the video coding rate plus the channel coding rate is equal to 1.