Improving video QoS in an error prone wireless network

Multimedia content over today´s internet has grown tremendously. Real time streaming of multimedia is becoming more and more important. People rely on online video for entertainment, education and communication purposes. YouTube, video conference, virtual classrooms, etc are some of the most common applications where real time multimedia over internet has become more and more relevant. Since the end user devices are mostly mobile and use wireless technology, streaming multimedia content wirelessly has become very critical. Wireless, being a broadcast open network, is prone to interference, noise, physical obstructions, multipath fading, jamming, etc. Therefore the Quality of Service (QoS) is not very high in a wireless medium. There should be some techniques to reduce the QoS issues. This paper proposes a system to solve some of the problems that reduce the quality in video transmission. We used duplicating packet and error correction techniques to figure out better QoS performance on the wireless network. The system is simulated using Qualnet. The results show considerable improvements in the QoS parameters.