A new Peer-to-Peer topology for video streaming based on complex network theory

A new wave of networks labeled Peer-to-Peer (P2P) networks attracts more researchers and rapidly becomes one of the most popular applications. In order to matching P2P logical overlay network with physical topology, the position-based topology has been proposed. The proposed topology not only focuses on non-functional characteristics such as scalability, reliability, fault-tolerance, self-organization, decentralization and fairness, but also functional characteristics are addressed as well. The experimental results show that the hybrid complex topology achieves better characteristics than other complex networks’ models like small-world and scale-free models; since most of the real-life networks are both scale-free and small-world networks, it may perform well in mimicking the reality. Meanwhile, it reveals that the authors improve average distance, diameter and clustering coefficient versus Chord and CAN topologies. Finally, the authors show that the proposed topology is the most robust model, against failures and attacks for nodes and edges, versus small-world and scale-free networks.