DEMETRIOU, CHARIS

NASIR, MUHAMMAD ANIS UDDIN

SEVERIEN, ANTONIO

RODRÍGUEZ GARCÍA, ANTONIO

Survey on P2P Video Streaming

over Wireless Mesh Networks

1

Overview

• Proposed work

• Introduction

• Wireless Mesh Networks Challenges

• Proposed Optimizations/Solutions

• Related Work

• Conclusion

• Q&A

Proposed Work

• P2P Video Streaming...

• ...over WMNs

• Challenges

• Solutions/Architectures

• Optimization

Peer to Peer

• Scalable

• Reliable

• No central administration

• Low cost

• 70% internet traffic

P2P Video Streaming

• New trend

• Reliable

• Efficient

• Content Streaming

• Live Streaming

Wireless Mesh Network

• Cost-effective

• Self organizing

• High capacity

• Low maintenance cost

• Easy deployment

P2P over WMNs

Challenges

• Scarce resources

• Churn

• Quality of Service (QoS)

• Quality of Experience (QoE)

• Latency

• Mobility

• No underlay awareness

Proposed Optimizations/Solutions

• Streaming Architecture

• Peer Selection

• Cross Layer

• Opportunistic Caching

• QoS / QoE

• Resource Usage

• Replication

Streaming Architecture

Mesh-based

Tree-based

Peer Selection

• Receiver based Rate allocation and Peer Selection (RPS)

• Latency based

• Geo-location based

• Peer resources based

• ALTO service

Cross Layer Design

• Swarm Intelligence

• ...focusing on scalability and bandwidth for MANETs

• Push-and-pull approach

• Optimal next-hop based on probabilities; derived from swarm

intelligence algorithm (ARA)

• WMN have similar dynamic nature

Opportunistic Caching

• Local caching

• Cross-layer interaction

• Reduction of duplicated content from 46,7% to 1,3%

Quality of Service/Experience

• Multi-gateway approach with Multiple Description Coding

Quality of Service/Experience

• Collaborative resource exchanges

• 3D wavelet video codec

• Path discovery using AODV

• Video compression algorithm

Resource Usage

• Hybrid TCP

• ALTO server to group neighboring nodes

• Frame rate adaption according to bandwidth

• Avoiding duplicated content

• Peer selection

Replication Scheme

• Home-to-home video clip replication scheme (H2-VIP)

• Deals with online/offline behavior

• Consider popularity of video

• Extra replicas to increase the availability

Summary

Optimizations vs. Problems

Related Work

• P2P Video Streaming

• P2P content sharing over WMNs

o discussion of overlay and mesh network combination

o proposed a venture investment scheme to provide better

network performance

• MANETs

o does not provide acceptable QoS, not viable for streaming

o high packet losses

Related Work

• VANETs

o Address the dynamic nature of Vehicular Ad-Hoc Networks (high

speeds, frequent topology and connectivity changes, low

throughput and strict delay requirements)

o Streaming Urban Video

o next-hop selection is based on current position and received

power

o use of graph-coloring theory to detect collisions

Conclusions

• P2P Video Streaming over WMN can be reliable and cost

effective solution

• Scarce resources, churn, mobility, no-underlay awareness

makes problem more challenging

• Different schemes can be used to solve the problems

• Uniting solutions for different problems on one system

Questions?