Implicit cooperation in distributed energy-efficient networks

Abstract : We consider the problem of cooperation in distributed wireless networks of selfish and free transmitters aiming at maximizing their energy-efficiency. The strategy of each transmitter consists in choosing his power control (PC) policy. Two scenarios are considered: the case where transmitters can update their power levels within time intervals less than the channel coherence time (fast PC) and the case where it is updated only once per time interval (slow PC). One of our objectives is to show how cooperation can be stimulated without assuming cooperation links between the transmitters but only by repeating the corresponding PC game and by signals from the receiver. In order to design efficient PC policies, standard and stochastic repeated games are respectively exploited to analyze the fast and slow PC problems. In the first case a cooperation plan between transmitters, that is both efficient and relies on mild information assumptions, is proposed. In the second case, the region of equilibrium utilities is derived from very recent and powerful results in game theory.
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Communication dans un congrès
International Symposium on Communications, Control and Signal Processing, Mar 2010, Cyprus. pp.32-38, 2010
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Mael Le Treust, Samson Lasaulce, Mérouane Debbah. Implicit cooperation in distributed energy-efficient networks. International Symposium on Communications, Control and Signal Processing, Mar 2010, Cyprus. pp.32-38, 2010. 〈hal-00462543〉

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