Distortion-Resistant Routing for Video Traffi...

Distortion-Resistant Routing for Video Traffic based on Link Quality in Wireless Multi-hop Network

Author Name : Nandini S Patil, Dr. Asma Parveen

ABSTRACT

Traditional routing metrics designed for wireless networks are application-agnostic. In this, we consider a wireless network where the application flow consist of video traffic. From a user perspective, reducing the level of video distortion is critical. “The routing policies change if the end-to-end video distortion is to be minimized” Popular link-quality-based routing metrics (such as ETX) do not account for dependence across the links of a path, thus, cause high video distortion. To account for the evolution of the video frame loss process, we construct an analytical framework to, first, understand and, second, assess the impact of the wireless network on video distortion. The framework allows us to formulate a routing policy for minimizing distortion, based on which we design a protocol called MDR routing  protocol which  is efficient in reducing video distortion and minimizing the user experience degradation.