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CORR
2007
Springer

A New Perspective on Multi-user Power Control Games in Interference Channels

13 years 11 months ago
A New Perspective on Multi-user Power Control Games in Interference Channels
This paper considers the problem of how to allocate power among competing users sharing a frequency-selective interference channel. We model the interaction between these selfish users as a non-cooperative game. As opposed to the existing iterative water-filling algorithm, which studies the myopic behavior of users, this paper studies how a foresighted user, who knows the channel state information and response strategies of its competing users, should behave. To characterize this multi-user interaction, the Stackelberg equilibrium is introduced, and the existence of this equilibrium for the investigated non-cooperative game is shown. We analyze such interactions in more detail using a simple two-user example, where we define the strategic behavior of a foresighted user as a bi-level programming problem, and derive the necessary optimality conditions. It is analytically shown that a foresighted user can improve its performance, if it has the required information about its competitors. ...
Yi Su, Mihaela van der Schaar
Added 18 Dec 2010
Updated 18 Dec 2010
Type Journal
Year 2007
Where CORR
Authors Yi Su, Mihaela van der Schaar
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