IPTV Improvement Approach over LTE-WLAN Heterogeneous Networks

IPTV (Internet Protocol Television) includes several video components. The IMS (IP Multimedia Subsystem) cannot differentiate between them what causes their treatment similarly. These sub-components must have different priorities because they have distinct QoS constraints. In this paper, we suggest the implementation of IPTV in a heterogeneous network that improved QoS by providing the capability to prioritize the sub traffic according to the system administrator policy. A new IPv6 flow label field definition was proposed that is ready for standardization. OPNET Modeler software is used to design our approached architecture. The results show that IPTV users receive different amounts of video data based on the stream's priority.

Choice of the Optimal Solution for Introducing vIMS Technology in the Infrastructure of the Telecommunication Network

The article focuses on the main driving forces that force telecom operators to introduce the latest achievements of scientific and technological progress into their networks and provide subscribers with new opportunities and advantages. One of the latest advances in the world of telecommunications is the IP Multimedia Subsystem (IMS). Based on literary sources, a review of the IMS concept is carried out, the main ideas embodied by it are highlighted. The paper provides a solution for the implementation of virtual IMS technology in the telecommunications network infrastructure, defines the main network equipment on which the functional components of the vIMS network are implemented.