10% Discount Coupon for PeerTalk: GSAS-65HG-IETP	Download (0.10MB) Homepage 100 USD Rating Votes: 0 DL: 16
Last Update: 2012-03-14 - Major Update: Bugs fixed Requirements: N/A Type: Shareware Limitations: 30 Trial Category: Development::Help Tools Language: English

Abstract-Multiparty voice-over-IP (MVoIP) services allows group of people to freely communicate with each other via the Internet, which have many important applications such as online gaming and teleconferencing. As this project, presents a peer-to-peer MVoIP system called peer Talk.

Compared to traditional approaches such as server-based mixing, peer Talk achieves better scalability and failure resilience by dynamically distributing the stream processing workload among different peers. Particularly, peer Talk decouples the MVoIP service delivery into two phases: mixing phase and distribution phase.

The decoupled model allows us to explore the asymmetric property of MVoIP services so that the system can better adapt to distinct stream mixing and distribution requirements. To overcome arbitrary peer departures, peer Talk provides lightweight backup schemes to achieve fast failure recovery.

A prototype of the peer Talk system is implemented and evaluated on basis of its performance using both a large-scale simulation tested and a real Internet environment. The initial implementation demonstrates the feasibility of the approach and shows promising results: peer Talk can outperform existing approaches such as P2P.