Simulator for hybrid CDN-P2P video-on-demand systems
Ge Zhang, Wei Liu, Yuze Zou, Wenqing Cheng · 2017
The hybrid architecture of content distribution network (CDN) and peer to peer (P2P) is promising in providing online streaming media services. It's convenient and low in cost to study the design space of hybrid streaming systems via simulation. In this paper, we designed a discrete-event simulator for hybrid CDN-P2P VoD systems. The simulator supports multiple switching strategies, different video coding methods and P2P piece selection algorithms. We verified the simulator and conducted experiments to study the design space of hybrid streaming systems. Our results show that adjusting CDN connection threshold is a more efficient way to provide a smooth streaming than adjusting CDN streaming rate. The simulator will be a reference tool for researchers to take a further look at the hybrid VoD systems.