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Summary: Coupons: A Multilevel Incentive Scheme for
Information Dissemination in Mobile Networks
Anargyros Garyfalos, Student Member, IEEE, and Kevin C. Almeroth, Senior Member, IEEE
Abstract--Integrating mobile computing and localized user interaction into the Internet requires more than simply overcoming pure
routing challenges. Apart from issues such as intermittent connectivity and unreliable nodes, the human factor is becoming
increasingly important. To date, user behavior has only been considered in terms of mobility patterns and incentives for encouraging
cooperation. Moreover, the focus has always been on systems that aim to enforce fairness by either bringing an indirect equilibrium or
by punishing "misbehaving" users. The goal of this paper is therefore to present Coupons. Coupons is an idea to define, evaluate, and
implement algorithms for the emerging class of social network and information sharing applications. Coupons is a system designed to
allow users to opportunistically interact and share data through a wireless medium, to overcome highly variable Internet access
through adaptive localized interaction, and to incorporate an incentive scheme to make the system usable and encourage participation.
Index Terms--Coupons, wireless, incentive.
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1 INTRODUCTION
WE are evolving into a society with nearly constant
access to the Internet and its vast wealth of informa-
tion. In order to achieve this level of connectivity, evolution
is taking place in two directions: evolution of devices and
evolution of network access. With novel devices like
Personal Digital Assistants (PDAs) and advanced cell
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