Abstract: AntMonitor is a system for passive monitoring, collection, and analysis of fine-grained, large-scale packet measurements from mobile devices. The system may be implemented on top of a VPN-based service and using two possible architectures: Client-Server or Mobile-Only. A current implementation of the Mobile-Only design may outperform other mobile-only approaches: it may achieve, for example, 2× and 8× faster (down and uplink) speeds, and close to the raw no-VPN throughput, while using 2-12× less energy. AntMonitor can scale to a large number of end-users, provide enhanced privacy protection, and enable accurate traffic classification. The system may support (i) real-time detection and prevention of private information leak-age from the device to the network; (ii) passive performance measurements network-wide as well as per-user; and (iii) traffic classification at different granularities (including per-application or per device, and user profiling) based on TCP/IP header features.

Abstract: A method of optimizing the design of a Tracker in P2P applications to support DVD features, the method including determining for each peer and video operation the time T and jump point Pj, generating a hash key HKj for each peer, the hash key having a value Kj=(Pj?T)/C, where C>=1 is the granularity of the system, and grouping the peers with the same hash-key, where the system is designed to provide good viewer experience while supporting DVD features like pause, forward and backward jump operations.

Abstract: “A method of optimizing the design of a Tracker in P2P applications to support DVD features, the method including determining for each peer and video operation the time T and jump point Pj, generating a hash key HKj for each peer, the hash key having a value Kj=(Pj?T)/C, where C>=1 is the granularity of the system, and grouping the peers with the same hash, where the system is designed to provide good viewer experience while supporting DVD features like pause, forward and backward jump operations.

Abstract: Method for downloading segments of a video file in a peer to peer network which comprises requesting to create new neighbourhood lists according to a health parameter which indicates availability of video segments among neighbors. Scheduling methods for the upload and download schedulers which work in synergy with the aforementioned features are also disclosed.