Video Transmission Using Scalable Video Coding For 4G Wireless Communications Systems

The technology foundation preferred by 4G wireless broadband networks is Long Term Evolution (LTE). This is because of its speed, robustness and lots of significant technological and business advantages. In recent years, applications based on video streaming have turned out to be immensely important. Due to the data-intensive nature of videos, alternatives for the delivery process have been investigated. In order to maximize throughput and video quality, Scalable Video Coding (SVC), combined with adaptive modulation and coding schemes and wireless multicast provides an excellent solution for streaming video to heterogeneous wireless devices. By choosing different modulation and coding schemes for different video layers, SVC can provide good video quality to users in good channel conditions while maintaining basic video quality for users in bad channel conditions. SVC provides three sorts of scalability, i.e. the spatial, temporal and quality scalability. Quality scalability in particular, plays an important role on the Quality of Experience. In view of the above, the research in the thesis addresses the specific problem of the performance assessment of video traffic over a wireless communication link with varying channel conditions. The objective of the research is to mainly involve re-definition of system quality measures and parameters to adjust (such as modulation and video quality) for improvement of these quality measures and implement a successful SVC scenario where optimization of performance over varying channel conditions and scaling rate for the SVC is obtained. Keywords: LTE, SVC, modulation and coding schemes, quality scalability.