@conference {Oualhaj2015987,
	title = {A coalitional-game-based incentive mechanism for content caching in heterogeneous Delay Tolerant Networks},
	booktitle = {IWCMC 2015 - 11th International Wireless Communications and Mobile Computing Conference},
	year = {2015},
	note = {cited By 1},
	pages = {987-992},
	abstract = {In recent years, Delay Tolerant Networks (DTNs) have successfully presented as a possible extension of the Internet architecture in order to provide communication support to existing networks. However, these networks have a major issue which is the coordination among relays. In this work, we study the cooperative transmission for DTNs using coalitional game theory. We design a new incentive mechanism for heterogeneous system to induce coordination among DTN relays. In particular, we focus on the source packet dissemination to a destination using tow-hop relaying scheme, considering networks resource constraints: the relay buffer, the packet life time, and the energy consumption according to the mobile technologies. Rational mobiles are organized into separate coalition structures to meet a trade off between the source reward and the energy conservation. We discus the Nash equilibria for our game and the stable strategy state in which no mobile can get a higher payoff through changing unilaterally its coalition. Then, we use the distributed imitative Boltzmann-Gibbs learning algorithm enabling relays to learn the Nash equilibrium strategy; grand coalition. The improvement of the global system performance is examined, and a comparison between different inter-node collaboration states is presented. {\textcopyright} 2015 IEEE.},
	doi = {10.1109/IWCMC.2015.7289217},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949490492\&doi=10.1109\%2fIWCMC.2015.7289217\&partnerID=40\&md5=743073fbd086e6b2dc5623cb07de9531},
	author = {Oualhaj, O.A.a and Kobbane, A.a b and Elmachkour, M.a and Sabir, E.c and Ben-Othman, J.b}
}
