Video Transmission over Wireless Networks -A Survey

Last decade have shown the rapid increase in video based applications over wireless standards such as, WiMAX, LTE and LTE-Advance. Transmission of real-time video for various applications such as video-conferencing, telemedicine and video streaming over wireless channels is a challenging task because of high bit error rate in these channels. Furthermore, for the limited bandwidth in the wireless standards and memory devices, state-of-the-art compression techniques are required. However, the coded video becomes very sensitive to channel errors. Thus, error resilient techniques are required to protect the coded video bitstreams. In this paper, various methods and techniques are reviewed that minimized the effect of channel errors in the transmission of video over noisy channels.