Neighborhood Filtering Strategies for Overlay Construction in P2P-TV Systems: Design and Experimental Comparison

2016 IFIP Networking Conference (IFIP Networking) and Workshops

2016

Abstract-Peer-to-peer video streaming is a valuable technique to reduce the overhead produced by centralized and unicastbased video streaming. Key to the efficiency of a peer-topeer approach is the optimization of the logical distribution topology (the overlay with respect to the underlying network, the underlay). This work studies peer-to-peer streaming in wireless mesh networks for which the underlay is known. We propose an optimized, cross-layer approach to build the peer-to-peer distribution overlay minimizing the impact on the underlay. We design an optimal strategy, which is proven to be NP-complete, and thus not solvable with a distributed, light weight protocol. The optimal strategy is relaxed exploiting the knowledge of the betweenness centrality of the underlay nodes, obtaining two easily implementable solutions applicable to any link-state routing protocol. Simulation and emulation results (experimenting with real applications on a network emulated with the Mininet framework) support the theoretical findings, showing that the relaxed implementations are reasonably close to the optimal solution, and provide vast gains compared to the traditional overlay topology based on Erdös-Rényi models that a peer-topeer application would build.

Section: Related Workmentioning

confidence: 99%

Optimized cooperative streaming in wireless mesh networks

2016 IFIP Networking Conference (IFIP Networking) and Workshops

2016

“…The second component can be substituted by any compatible players, such as the widely used Video Lan Client (VLC) 10 . One architectural choice that is currently under design is the introduction of a web-based interface which has been proved to be generally more appealing for the users and could grant a higher degree of flexibility.…”

Section: The Web Interfacementioning

confidence: 99%

“…As a future development, we can imagine that multiple streams, 10 See http:\\www.videolan.org Figure 2: PeerStreamer network architecture. The source tools inject the video packets in the overlay, the peer-to-peer overlay is composed of the streamers and the player applications perform the playout.…”

Section: The Web Interfacementioning

confidence: 99%

See 1 more Smart Citation

Live Video Streaming for Community Networks, Experimenting with PeerStreamer on the Ninux Community

Proceedings of the 2015 Workshop on Do-It-Yourself Networking: An Interdisciplinary Approach

et al. 2015

P2P Live video streaming could be a distinguishing feature of Community Networks, due to the affinity to both technical and social characteristics of such networks. It can help binding together communities, it provides a good means for inclusion of people as well as to deliver information and local events. Video streaming in community networks, however, is still problematic; this work describes how to customize PeerStreamer, an open source P2P video streaming platform, to an existing Community Network in the city of Florence, Italy. The paper exposes the motivations that make PeerStreamer a perfect match with the philosophy and the technical features of a community network and describes how the community network of Florence can be a very good testbed given the mixture of technical and social skills that animate it. The proposed adaptation and implementation exploits a so-far underused feature of PeerStreamer: the possibility of separating the streaming engine from the play-out part on different hosts. This feature makes it possible to install the streaming engine, which is very efficient and has a very small memory footprint, directly on the community network routing nodes, so that the streaming topology can be adapted to the community network topology by directly accessing routing information. On the other hand, the player can run on standard PCs and use standard interfaces to access the stream.

“…The selected P2P platform is PeerStreamer, that we have developed during NAPA-WINE 2 , and we are maintaining as an open source project. Since WCNs infrastructure differs a lot from the Internet in general, the results we obtained in [1], can only be used as guidelines and are not direcly applicable to WCNs for which the characteristics must be studied.…”

Section: Introductionmentioning

confidence: 99%

Improving P2P streaming in community-lab through local strategies

2014 IEEE 10th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)

2014

Self Cite

Distributing live streaming in Wireless Community Networks (WCNs) is a service with a high added value; however, cloud-based streaming, as commonly used in the Internet, does not fit well the architecture of WCNs, which often have restricted access to the Internet. Modern WCNs, instead, can have a good internal connectivity with high bandwidth. A P2P approach is thus well matched for streaming in WCNs. This paper presents experimental results obtained with PeerStreamer running on top of Community-Lab, a test-bed realized by the CONFINE EU Project for the experimentation of novel protocols in community networks. The experiments highlight relevant differences between a WCN and the Internet, and we propose strategies that can beimplemented on all the peers or even only locally on the source to improve the streaming quality. These strategies are based on simple heuristics and can be activated dynamically when the streaming quality degrades below a given threshold.