This paper thoroughly investigates the evolutionary dynamics of soft security mechanism, namely, reciprocity-based incentive mechanism, in P2P systems based on Evolutionary Game Theory (EGT). By soft security mechanism, it means social control mechanisms to overcome peers’ selfish (rational) behaviors, and encourage cooperation in P2P systems. Specifically, there exist three strategies in P2P s...

Massively distributed peer-to-peer (P2P) computing systems offer unprecedented levels of computing power. However there is no widely used peer interface and as a result many P2P systems have been developed to support specific services. This paper proposes a P2P middleware architecture that directly supports the formation of service networks based on secure interconnections between peers. The P2...

Peer-to-peer (P2P) networks are distributed data sharing systems with no dedicated and centralized infrastructure. These systems are attractive because they deliver on the Internet’s promise of true decentralization, offering scalability, availability, fault tolerance, robustness, and low barriers to entry. While P2P systems have been used so far mainly for file sharing, their true potential li...

The topological properties of overlay networks are critical for the performance of peer-to-peer (P2P) systems. The size of routing table and the diameter are among the most important parameters which measure the autonomy, efficiency, robustness and load balancing of P2Ps, and the Moore bound sets the optimal tradeoff between diameter and degree for any graph. In order to improve the four featur...

Peer-to-peer systems are distinguished from traditional distributed systems in that nodes join and leave the p2p system at high rates, called churn problem. SChord, a p2p system, is illustrated in this paper, which is constructed on Chord system and aims to handle churn. We analyze the past experimental studies on churn of p2p systems and do some theoretical analysis on the probability distribu...

The goal of this thesis is to contribute to the development of data localization and summarization techniques in P2P environments. At the application layer, we focus on exploiting the semantics that can be captured from the shared data. These semantics can improve the search efficiency, and allow for more query facilities. To this end, we introduce a novel data indexing technique into P2P syste...

Conventional TV viewing via cable is evolving to Satellite, IPTV and P2PTV based systems. Commercial peer-to-peer systems like Zattoo, Joost are some reputed systems for P2P live streaming. When most content is live or not, file transfer is better in broadcast based systems such as youtube. But as the volume of interesting content soars, Internet scale search and delivery beats any local servic...

Peer-to-peer (P2P) computing has been hailed as a promising technology that will reconstruct the architecture of distributed computing (e.g., the Internet). This is because it can harness various resources (including computation, storage and bandwidth) at the edge of the Internet with lower cost of ownership, and at the same time enjoy many potential desirable features (e.g., scalability, auton...