Impact of packet size on the temporal quality of video transmission over wired-to-wireless network
Ghaida A. Al–Suhail · 2008
In this paper, an analytical packet loss model is applied for a Group of Pictures (GoPs) pattern of MPEG-4 video stream over wired to wireless Internet. The model assumes Additive White Gaussian Noise (AWGN) wireless channel causing frequent bit errors associated with packets. To achieve high efficient video transmission over network, the effect of packet size is first investigated on the video temporal quality in case of TCP-Friendly Rate Control (TFRC) transmission, and then the video stream quality is compared in case of non-TFRC transmission. The new simulation results show that a good predicted video quality performance (temporal scalability) can be evaluated in terms of a number of successful playable frames per second. The findings reveal that under different levels of channel Signal-to-Noise Ratios (in dBs), an appropriate packet size must be well-chosen before transmission commences. Further, the wireless video provides a reasonable visual perception compared to that one of wired-video Internet.