Loading...

A Hybrid Mesh-Tree Peer-to-Peer Overlay Structure for Layered Video Streaming

Tahghigh Jahromi, Narjes | 2010

488 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 41511 (52)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Movaghar Rahimabadi, Ali; Akbari, Behzad
  7. Abstract:
  8. Nowadays peer-to-peer networks are more popular than the client server model. Distributed manner of peers cooperation can decrease the heavy overhead of the server and all peers act both as clients and servers. Peer-to-peer networks have two famous structures called tree and mesh. Tree overlay has some challenges such as resiliency problems caused by peer churns and the leaf nodes that cannot use their upload bandwidth. Mesh overlay has does not have such problems, but it has a high delivery latency and overhead caused by pull mechanism. Using a hybrid mesh/tree overlay offers a push-pull approach and leads to using the advantages of both overlays simultaneously. Also in peer-to-peer networks a significant problem is heterogeneity of peers. In this thesis we propose a hybrid mesh/tree overlay, that by means of streaming layered coded video, addresses these challenges in live media streaming. This overlay poses other critical design challenges such as latency and resiliency issues. Stable nodes in a distributed algorithm form a tree accelerate media streaming. Our evaluation results show that the delay of base layer delivery would decrease and consequently the video quality would improve in comparison to mesh overlay
  9. Keywords:
  10. Peer-to-Peer Network ; Video Streaming ; Mesh Overlay ; Tree Overlay ; Hybrid Tree Mesh Overlay

 Digital Object List

 Bookmark

No TOC