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Recent studies show that network coding improves multicast session throughput. In this paper, we demonstrate how random linear network coding can be incorporated to provide network diagnosis for peer-to-peer systems. We present a new trace collection protocol that allows operators to diagnose peer-to-peer networks. It is essential to monitor large-scale peer-to-peer applications by collecting measurements...
The success of P2P file sharing systems inspired the development of P2P streaming systems for delivering online multimedia service in the last few years. The capacity of P2P streaming systems, i.e., how many peers can be concurrently serviced by the system, depends on system configurations including network bandwidth, overlay network formation, QoS constraints, membership management, peer selection,...
Peer-to-peer (P2P) VoIP calls such as those provided by Skype have been becoming popular due to their quality-of-service, free of cost, security and convenience. Skype is a distributed P2P network with no centralized call servers. Calls traverse through a myriad of possible paths before reaching to the destination and each packet is encrypted with 256 bit AES encryption. In this paper, we are particularly...
Recent works have shown how Multiple Description Coding (MDC) proves to be an effective solution for the multimedia transmission over Peer-to-Peer and Content Delivery Networks. However, despite the flexibility and scalability of these novel transmission paradigms, packet streams are still affected by losses, and an effective packet labelling that differentiates the QoS levels for the transmitted...
In P2P streaming media on-demand system, limited network bandwidth and cache space seriously affects the downloading speed of peers and extremely restrict the QoS of the whole system. A network coding solution on P2P streaming media on-demand system is proposed. The solution adopts random linear network coding technology. With network coding which can improve the utilization rate of bandwidth and...
This paper proposes a method for saving resources of the video distribution server by using peer-to-peer communications. In order to adapt to a time-varying channel, scalable video coding and a fountain code, a Raptor code is used. The Raptor code protects video quality asymmetrically according to the significance of scalable video layers; varying in peer-to-peer networks, as a forward error correction...
The cooperation among peers has been a key factor in the success of peer-to-peer (P2P) media streaming systems. However, practical observations corroborate the prevalence of free riders in existing P2P systems, which significantly degrade the performance of the systems. In this paper, we investigate the design of an incentive mechanism for P2P media streaming and propose a barter-based incentive mechanism...
With the maturity of mobile application environment and the popularity of Bluetooth device, researchers focus on data transmission in Bluetooth mobile Peer-to-Peer (MP2P) network. However, QoS of data transmission becomes poor in Bluetooth mobile P2P network because of the limit communicating rate and the mobility of user. In this paper, we propose a novel cross-layer design mechanism, which controls...
IPTV promises to be within the spectrum of services offered in the future Internet. In cooperative IPTV, clients' resources are typically used to build a scalable system to distribute TV content. One of the major challenges of this approach is to reach the same quality of service of traditional television and commercial IPTV by employing only best effort network layer services. This paper proposes...
In this paper, we present a receiver centric P2P-based multimedia streaming mechanism for heterogeneous network terminals. P2P networks possess the heterogeneous characteristics that are not known a priori, such dynamic conditions make the real time applications like multimedia streaming more challenging. We proposed an adaptive streaming mechanism to cope with the problem of dynamic characteristics...
This paper describes an innovative system and its architecture to offer media scalable content delivery, increasing the robustness and resiliency, enriching the PQoS both within the network and/or at the end-user terminal, while protecting the content from unauthorized access over heterogeneous physical architecture and P2P logical overlay network topologies. The system is focused on different convergent...
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