Abstract
The subsystem multimedia internet network (IMS) has been upgraded to support peer-to-peer content distribution services, the peer heterogeneity constraint imposes a challenge that is the guarantee of a certain level of QOS of the video for the different pairs, and the transfer poses a challenge for maintaining quality of service (QoS) in IMS. In this article, we we have extended a scalable Video Coding (SVC) peer-to-peer streaming adaptation model and our extension allows to add another parameter for this adaptation scheme which is the IP address of the peers, so to manage multiple network accesses to a peer when the user changes the type of access, due to a transfer or a loss of connectivity, this model is used to adapt the video quality to the static resources of the peers in order to avoid long start times, and to compare the results obtained for changing the type of network access, we performed two simulation scenarios, one with multiple peers that are connected to the network until the end of the video download by the peers and the other scenario with the change of the address of a peer during the operation of downloading the video sequence by peers. We quantified streaming performance using two metrics of evaluation (peak signal-to-noise ratio (PSNR)) and video quality metrics (VQM)), and also we extracted from the values of PLR (Packets loss rate). Our results show that our model has a better adaptation of the quality according to the network resources of the peers in term of bandwidth available in the network and the performances of the users (CPU, RAM, autonomy of the battery) and also allows a continuity of service in the network by ensuring that the list of peers is updated after each change. The results show a clear quality adaptation with heterogeneous terminals.
Highlights
The Internet Multimedia Subsystem has been standardized by the 3GPP [1] is used today as an architecture for triple-play services: telephony, Internet and video streaming
We could create a simulation of our adaptation model and connect it with the NS2 simulator to perform several simulations on a real flow following an architecture that groups the IP Multimedia Subsystem (IMS) network with P2P technology and for heterogeneous peers (PC, tablet, mobile), and we chose the use of H.264 / scalable video coding (SVC) coding that allows for multiplied distribution and adaptive streaming from a single file
Our simulation will include the part of the SIP signaling in the IMS network of the different peers, the creation of a P2P network in our proposed architecture using the Zetasim [7] framework, and the part of the evaluation of the SVC coding using the myevalsvc [8] framework, in order to execute our SVC quality adaptation algorithm, we have developed our algorithm using C++ code, to choose the streamed stream that suits the performance of the peer, we have to connect our C++ code with the TCL simulation (Tool Command Language) on NS2
Summary
The Internet Multimedia Subsystem has been standardized by the 3GPP [1] is used today as an architecture for triple-play services: telephony, Internet and video streaming. Streaming in the IMS P2P network often uses data-oriented protocol in which, for example, each node periodically announces to its neighbors the blocks it has Streaming in this network reduces the cost of infrastructure by taking advantage of customers to make content available and avoid having to set up important structures. We could create a simulation of our adaptation model and connect it with the NS2 simulator to perform several simulations on a real flow following an architecture that groups the IMS network with P2P technology and for heterogeneous peers (PC, tablet, mobile), and we chose the use of H.264 / SVC coding that allows for multiplied distribution and adaptive streaming from a single file.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
