SIPTVMON: A secure multicast overlay network for load-balancing and stable IPTV service using SIP

摘要

IPTV is an emerging multimedia network application over prevalent Internet. IPTV over P2P streaming network preserves significant advantages in scalability over conventional client-server architecture. IPTV media content delivered in P2P networks over public Internet still preserves the issues of privacy and intellectual property. In this paper, we use SIP protocol to construct a secure application-layer multicast overlay network, called SIPTVMON, with load-balancing and stability. SIPTVMON can secure all the IPTV media delivery paths against the eavesdroppers via elliptic-curve Diffie-Hellman (ECDH), SIP signaling and AES encryption. The proposed SIPTVMON also optimizes the load-balancing overlay tree by not only the link bandwidth to minimize the service latency, but also the life time to minimize the service degradations from frequent users' joins and leaving. The performance results from simulation and experiments in very large scale demonstrate the SIPTVMON's cost-effectiveness in quality of privacy protection and stability with good perceptual quality of objective PSNR values for IPTV.