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This paper addresses the power control problem in an underlay cognitive radio network where N selfish secondary users (SUs) sharing a frequency band with a primary user. The problem is studied from two perspectives: system level and user level. At the system level, a secondary network manager (SNM) is interested in minimizing the secondary network outage probability subject to peak power constraints...
Two non-cooperating cells are considered, each with its protected band to provide service to its high priority users. A shared band for the two cells is employed to deliver service to low priority users. We formulate the situation between the two cells as a non-cooperative game and study its Nash equilibrium. We prove that the game belongs to a class of games called supermodular games which have several...
In this paper, we consider the scenario of a cellular network where base stations aim to transmit several data packets to a set of users in the downlink, within a predefined time, at minimal energy cost. The base stations are non-cooperating and the instantaneous transmission rate depends on the instantaneous SINR at the receiver. The purpose of this article is to highlight a power-efficient transmit...
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