C&A Tutorial

Peer-to-Peer GI Arbeitsgespräch, Darmstadt, September 24, 2003Distributed Pricingin P2P Networks1David Hausheer1Swiss Federal Institute of Technology, ETH ZürichComputer Engineering and Networks Laboratory TIK, Zürich, SwitzerlandE-Mail: hausheer@tik.ee.ethz.chComputer Engineering and Networks Laboratory,Swiss Federal Institute of Technology, ETH Zürich© 2003 D. Hausheer, ETHZ-TIK ETH Zürich††††OutlineMotivation for Pricing in P2PBasic P2P Pricing Protocol• Price Determination• Price Valuation• Price DisseminationPricing Design• Pricing APIsConclusions© 2003 D. Hausheer, ETHZ-TIK ETH Zürich††††Motivation for Pricing in P2PObservations in current P2P file sharing systems• There is a lot of “crap” content being offered by users• Peers are not peers (heterogeneous infrastructure)Accounting “counts” all bits the same• There is no differentiation between good bits and bad bits• It is scenario-specific (how many files are 10 min connection worth?)• Users have no control (I want to provide my files for free, but I can’t)Pricing enables differentiation, generalization and control• I give you 10 Britney Spears songs for 1 Madonna song• I can’t offer files, but I have lots of computing power• If my PC is busy, I want you to pay the doubleBut this is user-specific!• That’s why we intend the users to determine the price© 2003 D. Hausheer, ETHZ-TIK ETH Zürich†Price RequestPrice NegotiationPrice AcceptanceBasic P2P Pricing ...