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Controlled Wi-Fi Sharing in Cities: A Decentralized Approach Relying on Indirect Reciprocity
August 2010 (vol. 9 no. 8)
pp. 1147-1160
ASCII Text
x 
 
Elias C. Efstathiou, Pantelis A. Frangoudis, George C. Polyzos, "Controlled Wi-Fi Sharing in Cities: A Decentralized Approach Relying on Indirect Reciprocity," IEEE Transactions on Mobile Computing, vol. 9, no. 8, pp. 1147-1160, August, 2010.
 
 
BibTex
x
 
@article{ 10.1109/TMC.2010.79,
author = {Elias C. Efstathiou and Pantelis A. Frangoudis and George C. Polyzos},
title = {Controlled Wi-Fi Sharing in Cities: A Decentralized Approach Relying on Indirect Reciprocity},
journal ={IEEE Transactions on Mobile Computing},
volume = {9},
number = {8},
issn = {1536-1233},
year = {2010},
pages = {1147-1160},
doi = {http://doi.ieeecomputersociety.org/10.1109/TMC.2010.79},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - JOUR
JO - IEEE Transactions on Mobile Computing
TI - Controlled Wi-Fi Sharing in Cities: A Decentralized Approach Relying on Indirect Reciprocity
IS - 8
SN - 1536-1233
SP1147
EP1160
EPD - 1147-1160
A1 - Elias C. Efstathiou,
A1 - Pantelis A. Frangoudis,
A1 - George C. Polyzos,
PY - 2010
KW - Wi-Fi
KW - community networks
KW - cooperation
KW - decentralization
KW - indirect reciprocity
KW - Wi-Fi telephony.
VL - 9
JA - IEEE Transactions on Mobile Computing
ER -
 
Elias C. Efstathiou, Athens University of Economics and Business, Athens, Greece
Pantelis A. Frangoudis, Athens University of Economics and Business, Athens, Greece
George C. Polyzos, Athens University of Economics and Business, Athens, Greece
In densely populated cities, Wi-Fi networks—private or otherwise—are ubiquitous. We focus on the provision of citywide broadband communication capability to mobile users through private Wi-Fi networks that are in range but belong to others. We form a club that relies on indirect reciprocity: Members participate in the club and provide free Wi-Fi access to other members in order to enjoy the same benefit when they are away from their own Wi-Fi network. Our club scheme does not require registration with an authority and does not rely on centrally issued club identities: Members create their own identities (public-private key pairs) and receive signed digital receipts when they provide Wi-Fi service to other members. These receipts form a distributed receipt graph, parts of which are used as input to an indirect reciprocity algorithm that classifies club members according to their contribution. We show that our algorithm can sustain cooperation within the club and is robust to attacks by free-riders. We implement and evaluate our proposed club algorithms on commodity Wi-Fi routers and dual-mode cellular/Wi-Fi phones. Because we anticipate that Wi-Fi telephony will be a popular club application, we present and evaluate a secure and decentralized architecture for citywide voice (and multimedia) communications that is compatible with our club both from an architectural as well as an incentives perspective.

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Index Terms:
Wi-Fi, community networks, cooperation, decentralization, indirect reciprocity, Wi-Fi telephony.
Citation:
Elias C. Efstathiou, Pantelis A. Frangoudis, George C. Polyzos, "Controlled Wi-Fi Sharing in Cities: A Decentralized Approach Relying on Indirect Reciprocity," IEEE Transactions on Mobile Computing, vol. 9, no. 8, pp. 1147-1160, Aug. 2010, doi:10.1109/TMC.2010.79
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