[email protected]Peer-to-Peer Wireless Network Confederation (P2PWNC) George C. Polyzos Mobile Multimedia Laboratory Department of Computer Science Athens University of Economics and Business http://mm.aueb.gr/ P2P colloquium, Darmstadt, December 7, 2005
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[email protected] Peer-to-Peer Wireless Network Confederation (P2PWNC) George C. Polyzos Mobile Multimedia Laboratory Department of Computer Science Athens.
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A wireless LAN (WLAN) aggregation scheme Unites WLANs in citywide [con]federations Requires no authorities: open to all, IDs are free Relies on reciprocity between peers
Motivation Numerous WLANs, connected to the Internet,
Adopt N-way exchanges as the incentive scheme A generalization of barter, which retains some of its simplicity “Provide to those [who provided to those]* who provided to me” A type of (cyclical) indirect reciprocity Scales to larger communities, compared to direct-only exchanges Does not rely on (central or distributed) authorities
N-way Exchanges
A B C D
Some variants of the basic N-way scheme:
Cox, Noble, “Samsara: Honor Among Thieves in P2P Storage,” SOSP’03
1. E. C. Efstathiou and G. C. Polyzos, “Self-Organized Peering of Wireless LAN Hotspots,” European Transactions on Telecommunications, vol. 16, no. 5, (Special Issue on Self-Organization in Mobile Networking), Sept/Oct. 2005. [12% acceptance rate]
2. E. C. Efstathiou, P. A. Frangoudis, and G. C. Polyzos, “Stimulating Participation in Wireless Community Networks,” IEEE INFOCOM 2006, Barcelona, Spain, April 2006 (to appear). [18% acceptance rate]
Linux-based WLAN access point We implemented the P2PWNC protocol (AP side) on it 32 MB RAM, 8 MB Flash, 200 MHz CPU Retails for less than $70 Cryptographic, maxflow performance comparable to 200 MHz PC Can act as team server/RR (storing more than 10 000 receipts)
Each client uses its own tunnel endpoint for scalability (usually their own home).Client can learn the endpoint’s current IP address from his team server.
Caller sends SMS containing current tunnel endpoint IP address and a tunnelidentifier. No centralized registrars are needed (e.g. SIP registrars, dynamic DNS).
1. E. C. Efstathiou and G. C. Polyzos, “Self-Organized Peering of Wireless LAN Hotspots,” European Transactions on Telecommunications, vol. 16, no. 5, (Special Issue on Self-Organization in Mobile Networking), Sept/Oct. 2005. [12% acceptance rate]2. E. C. Efstathiou and G. C. Polyzos, “Peer-to-Peer Wireless Network Confederation,” in Encyclopedia of Virtual Communities and Technologies, S. Dasgupta, ed., Idea Group Reference, 2005.3. E. C. Efstathiou and G. C. Polyzos, “P2PWNC: A Peer-to-Peer Approach to Wireless LAN Roaming,” in Handbook of Wireless Local Area Networks: Applications, Technology, Security, and Standards, M. Ilyas, S. Ahson, eds., CRC Press, 2005.4. E. C. Efstathiou, P. A. Frangoudis, and G. C. Polyzos, “Stimulating Participation in Wireless Community Networks,” IEEE INFOCOM 2006, Barcelona, Spain, April 2006 (to appear). [18% acceptance rate]5. P. A. Frangoudis, E. C. Efstathiou, and G. C. Polyzos, “Reducing Management Complexity through Pure Exchange Economies: A Prototype System for Next Generation Wireless/Mobile Network Operators,” 12 th Workshop of the HP Openview University Association (HPOVUA), Porto, Portugal, July 2005.6. E. C. Efstathiou and G. C. Polyzos, “Can Residential Wireless LANs Play a Role in 4G?” 4G Mobile Forum (4GMF) Annual Conference, San Diego, CA, July 2005.7. E. C. Efstathiou and G. C. Polyzos, “A Self-Managed Scheme for Free Citywide Wi-Fi,” IEEE WoWMoM Autonomic Communications and Computing Workshop, Taormina, Italy, June 2005.8. E. C. Efstathiou, “Self-Organized Peering of Wireless LANs,” IEEE INFOCOM 2005 Student Workshop, Miami, FL, March 2005.9. E. C. Efstathiou and G. C. Polyzos, “Trustworthy Accounting for Wireless LAN Sharing Communities,” 1 st European PKI Workshop, Samos Island, Greece, June 2004.10. E. C. Efstathiou and G. C. Polyzos, “Designing a Peer-to-Peer Wireless Network Confederation,” IEEE LCN Workshop on Wireless Local Networks (WLN), Bonn, Germany, Oct. 2003.11. P. Antoniadis, C. Courcoubetis, E. C. Efstathiou, G. C. Polyzos, and B. Strulo, “Peer-to-Peer Wireless LAN Consortia: Economic Modeling and Architecture,” 3rd IEEE International Conference on Peer-to-Peer Computing, Linköping, Sweden, Sept. 2003.12. E. C. Efstathiou and G. C. Polyzos, “A Peer-to-Peer Approach to Wireless LAN Roaming,” ACM MOBICOM Workshop on Wireless Mobile Applications and Services on WLAN Hotspots (WMASH), San Diego, CA, Sept. 2003.13. P. Antoniadis, C. Courcoubetis, E. C. Efstathiou, G. C. Polyzos, and B. Strulo, “The Case for P2P Wireless LAN Consortia,” 12th IST Summit on Mobile/Wireless Communications, Aveiro, Portugal, June 2003.