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Multiview video is well known to involve interactions with audience and offer better view experience than conventional single-view video. The interactive nature of multiview video has made the service very delay-sensitive and thus imposes great challenges for providing multiview streaming service in Internet. Currently, almost none of existing works have addressed the delay issue in multiview streaming...
Delivering high-quality multiview video (MV) through Internet is very challenging due to its excessive consumption on server bandwidth resources. Existing solutions encode video contents independently for each view and deliver them separately in isolated view channels, without leveraging the features of MV and taking advantage of multiview video coding(MVC). To minimize the server bandwidth costs,...
The successful deployment of peer-to-peer (P2P) live video streaming systems has practically demonstrated that it can scale to reliably support a large population of peers. However, peers, representing rational end users, tend to be non-cooperative when it comes to the duty rather than the self-interests, running counter to the fundamental design philosophy of P2P concept. The objective of this paper...
In this paper, we describe the design and implementation of a peer-to-peer based live video streaming system called Gridmedia. Gridmedia organizes the nodes into an unstructured overlay, and adopts a novel push-pull streaming mechanism to fetch data from the partner nodes. The pull mode in the unstructured overlay can work well with the high churn rate in P2P environment while the push mode can efficiently...
Peer-to-peer based applications are coming, such as instant messaging, file sharing and video streaming. With the maturation of P2P technology there is larger and larger number of users. But P2P network's characteristics make itself a potential vehicle for the active worms to achieve fast worm propagation. So it is important to study the worm's spreading model and relative countermeasure under P2P...
IPTV is highly advocated in recent years. Today, the growth of the residential users makes it possible to broadcast live video content through global Internet to a great population of end users. In this paper, we mainly describe the design and deployment experiences of a peer-to-peer (P2P) based IPTV system called Gridmedia since P2P is universally recognized as a scalable and cost-effective means...
In this paper, we emphasize salient experiences on peer to peer based live video streaming. First, we describe a two-layer overlay structure and a multi-sender based transmission algorithm to broadcast video programs. Although both numerical analysis and practical data reveal feasibility to support nearly 600 concurrent users in 500kbps streaming delivery, the tremendous workload imposed upon structure...
Overlay network has emerged as a popular alternative to traditional client-server architecture for the distribution of media content. Intrinsic to the notion is a 'self-growing' community of end users. It is thus important to investigate practical issues in reality rather than following prescribed theoretical assumptions. This paper presents our research experiences on deployment of overlay network...
We present a novel single source peer-to-peer multicast architecture called GridMedia which mainly consists of 1) multi-sender based overlay multicast protocol (MSOMP) and 2) multi-sender based redundancy-retransmitting algorithm (MSRRA). The MSOMP deploys mesh-based two-layer structure and groups all the peers into clusters with multiple distinct paths from the source root to each peer. To address...
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