Network assisted power control for wireless data
Mobile Networks and Applications - Special issue on Mobile Multimedia Communications (MOMUC '99)
CDMA uplink power control as a noncooperative game
Wireless Networks
A utility-based power-control scheme in wireless cellular systems
IEEE/ACM Transactions on Networking (TON)
IEEE Transactions on Wireless Communications
Optimal power control for Rayleigh-faded multiuser systems with outage constraints
IEEE Transactions on Wireless Communications
A power control game based on outage probabilities for multicell wireless data networks
IEEE Transactions on Wireless Communications
A game-theoretic approach to energy-efficient power control in multicarrier CDMA systems
IEEE Journal on Selected Areas in Communications
A Game-Theoretic Approach to Energy-Efficient Modulation in CDMA Networks with Delay QoS Constraints
IEEE Journal on Selected Areas in Communications
A framework for uplink power control in cellular radio systems
IEEE Journal on Selected Areas in Communications
A power control game with smooth reduction of SINR objectives
Allerton'09 Proceedings of the 47th annual Allerton conference on Communication, control, and computing
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In this paper, we study distributed power control in an interference network. In particular, distributed power control mechanisms are devised by exploiting a one-shot non-cooperative game based on a suitably chosen utility function. The utility is a function of quality of service (QoS) objectives defined in terms of fading-induced outage probabilities. Equilibrium analysis of the resulting power control game is made, and its relationship with admission control is discussed. The main contribution of the paper is a mechanism for obtaining smooth non-monotonic reaction curves, in contrast to sharp cut-offs with increasing interference that are characteristic of admission control. This is done via the introduction of a factor fd(.) into the utility function, allowing users to smoothly decrease their objectives in response to interference. The resulting algorithm is called non-monotonic power control (NMPC). We provide sufficient conditions for a unique Nash equilibrium (NE) under NMPC. The equilibria are studied in numerical examples, which exhibit that NMPC increases the number of users who achieve their objectives, without removing any user, as compared to previous utility-based power control algorithms with harsher reaction curves. Considerable energy efficiency is gained by a transfer of resources from the disadvantaged user to the advantaged: users whose SIR objectives are infeasible under current channel gains reduce their own transmit power thus helping on others. We view this solution as an attractive alternative to pricing in wireless networks formed by cooperative nodes (such as sensor networks) where an economic model is not natural.