Collaboration of P4P and IMS: Solution to P2P challenges

Currently, Peer to peer (P2P) technology has dramatically transformed the landscape of the Internet traffic, which attracts researchers to do more research on the deployment of P2P in heterogeneous networks. Current GSM/GPRS system cannot support real P2P, because it does not allow mobile terminal to get a fixed IP address, but in 3G it is possible. On the other hand IP Multimedia Subsystem (IMS) is a key technology of 3G; it uses SIP to control sessions of higher layer services and has ability of multiple access network combination. We are currently working on SARACEN, one of the FP7 project in Europe which is based on multimedia communication. The main goal of the SARACEN project is to research and develop a platform, over which distribution of multimedia streams can be supported through innovative techniques, both as regards media encoding, but also as regards media distribution using P2P[1]. In media distribution, we found few challenges with P2P like piracy, security, content delivery time, bandwidth management etc. In this paper we are going to propose a new environment with collaboration of P4P (Provider Portal for P2P) and IMS. This proposed architecture consists of P2PSIP, DRM, AAA, iTracker, SIP AS, Gateway and other components. This architecture is not only for our project but also for general purpose to resolve the p2p challenges in heterogeneous environment.