Jocelyne Elias

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Wireless Body Area Networks (WBANs) represent one of the most promising approaches for improving the quality of life, allowing remote patient monitoring and other healthcare applications. The deployment of a WBAN is a critical issue that impacts both the network lifetime and the total energy consumed by the network. This work investigates the optimal design(More)
The Network Design problem has received increasing attention in recent years. Previous works have addressed this problem considering almost exclusively networks designed by selfish users, which can be consistently suboptimal. This paper addresses the network design issue using cooperative game theory, which permits to study ways to enforce and sustain(More)
1389-1286/$ see front matter 2008 Elsevier B.V doi:10.1016/j.comnet.2008.09.011 * Corresponding author. Tel.: +39 02 2399 3449; fa E-mail addresses: capone@elet.polimi.it (A. polimi.it (J. Elias), fabio.martignon@unibg.it (F. Mar Service Overlay Networks (SONs) create a virtual topology on top of the Internet and provide end-to-end quality of service(More)
The Network Formation problem has received increasing attention in recent years. Previous works have addressed this problem considering only networks designed by sel sh users, which can be consistently suboptimal. This paper addresses the network formation issue using cooperative game theory, which permits to study ways to enforce and sustain cooperation(More)
Cognitive radio networks provide the capability to share the wireless channel with licensed (primary) users in an opportunistic manner. Primary users have a license to operate in a certain spectrum band; their access can only be controlled by the Primary Operator and is not affected by any other unlicensed (secondary) user. On the other hand, secondary(More)
In many scenarios network design is not enforced by a central authority, but arises from the interactions of several self-interested agents. This is the case of the Internet, where connectivity is due to Autonomous Systems’ choices, but also of overlay networks, where each user client can decide the set of connections to establish. Recent works have used(More)
Service overlay networks (SONs) can provide end-to-end quality of service guarantees in the Internet without requiring significant changes to the underlying network infrastructure. A SON is an application-layer network operated by a third-party Internet service provider (ISP) that owns a set of overlay nodes, residing in the underlying ISP domains,(More)
This paper addresses the joint pricing and network selection problem in cognitive radio networks. The problem is formulated as a Stackelberg game where first the Primary and Secondary operators set the network subscription price to maximize their revenue. Then, users perform the network selection process, deciding whether to pay more for a guaranteed(More)