Tribler: The IShare P2PTV software

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TriblerThe I-Share P2P-TV software
dr.ir. J.A. Pouwelse Delft University of
Technology Tribler design coordination
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Content

• Peer-2-Peer
• Disruptive changes
• Dutch P2P team
• Next-generation P2P software Tribler
• Social-based P2P
• Taste understanding
• Bittorrent File Sharing
• Real-time video streaming

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Our motivation

• P2P is hot
• Scientific understanding
• Stimulate real-world usage
• Requires operational systems Tribler

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Evolution of electronic sharing

• -1990 V1.0 Floppy Tape
• 1990s V2.0 FTP Web servers
• 1997 V3.0 IRC
• 1999 V4.0 Napster / MSN
• 2001 V5.0 Gnutella / Kazaa
• 2003 V6.0 Bittorrent
• 2006 V7.0 Tribler ? ?

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Social norm P2Pcool or P2Ptheft

• Buy or download ?
• 85,000,000 addicted users
• Need for an alternative
• Technology follows social demand
• People want MP3s, iPods, and P2PChallenge
  profit from it

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P2P disruptive force

• Cheap information distribution
• Superior to IPTV
• Robust (technical legal)
• No need for man-in-the-middle
• Creator ltgt audience

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People

• Dutch researchers
• Distributed systems
• Interaction design
• Video coding
• Information retrieval
• Security
• Tribler people
• TUDelft
• VU

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• Vision Near-zero cost infrastructure for content
  distribution

• 100,000 channels
• Communities
• Used by millions
• Support content creation
• Applications
• Amateur journalists
• Video blogs
• Every webcam a TV station

defining the future of television
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Current Internet TV technology

• Single video server or download server
• Scalability and cost problems

0010101
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Our approach P2P-Television

• P2P streaming
• Every user helps
• Forward video to others

1 of 100,000
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Tribler download streaming

• Traditional streaming
• One bitrate
• One quality
• Tribler streaming
• 1 Mbps ADSL Good quality
• 8 Mbps ADSL HDTV quality
• Modified MPEG4
• Operational improving

http//Tribler.org/test_streaming
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Triblerfoundations

• 0. Bittorrent-compatible
• 1. Social-based
• 2. Communication primitive
• 3. Strong peer authentication
• 4. Strong content integrity checks
• 5. Permanent storage of context
• 6. Semantic clustering
• 7. Download booster
• 8. High quality streaming

-gt MSN/GMail import -gt Overlayconnect -gt Elliptic
curve crypto -gt Merkle hashes -gt Megacache -gt Pear
son similarity -gt Donate idle upload
BW -gt Multiple Description coding
next-generation P2P
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0 Tribler architecture
http//Tribler.org/code (Based on ABC client)
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1 Social based

• Built on top of social network
• Long term relations
• Reduce dynamics
• Eliminate churn
• Solves incentives problem
• Different approach
• 80 of P2P researchers algorithms without social
  context
• Add quantifiable social phenomena
• Community co-design actual users
• Measurements of Friendster.com

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2 Overlayconnect()

• Bittorrent 1 file 1 swarm
• Swarm limitation
• Tribler Inter-swarm communication
• A single overlay swarm

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3 Strong peer authentication

• Connect between Tribler peers
• Strong authentication
• Challenge/response
• Elliptic Curve Crypto
• Person oriented
• Abstract IP away
• Pseudonimity

Overlayconnect(Friend_John)
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5 Megacaches

• Peers exchange and store
• Social relations
• Altruism levels
• Peer uptimes/IPs
• Taste similarity
• 50MB metadata and context
• 100,000 filenames x 100 bytes
• 50,000 buddies x 600 bytes
• 500,000 tags x 20 bytes
• Epidemic protocols share memories with friends

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6 Semantic clustering

• Understand taste of user
• Exchange of preferences
• Store preferences in Megacache
• Epidemic content discovery
• Buddycast message
• Your preferences
• Your similar peers (taste buddies)
• Their preferences

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6 Semantic clustering
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7 Download booster

• Prime function of File Sharing fast download
• Download Upload
• tit-for-tat
• Average seeding
• Normal swarm size
• ADSL upload bottleneck
• 2048 Kbps download
• 512 Kbps upload
• Donate upload to friends
• Download at Max ADSL speed

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7 Download booster
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Summary

• Defining the future of television
• Approach Peer-2-Peer
• Real-time (HDTV) video streaming
• Unified streaming and downloading
• Innovations
• One year beyond state-of-the-art
• Understand friends, taste, Internet
• Open Source code
• Release today
• http//Tribler.org