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Pricing and Power Control in a Multicell Wireless Data Network

By Cem U. Saraydar, Narayan B. Mandayam and David J. Goodman


In this paper we consider distributed power control in a multicell wireless data system and study the e#ect of pricing transmit power. Drawing on our earlier work in [1], we formulate the QoS of a data user via a utility function measured in bits per Joule. We consider distributed power control, modeled as a non-cooperative game, where users maximize their utilities in a multicell system. Base station assignment based on received signal strength as well as received signal-to-interference ratio (SIR) are considered jointly with power control. Our results indicate that for both assignment schemes, such a procedure results in an ine#cient operating point (Nash equilibrium) for the entire system. We introduce pricing of transmit power as a mechanism for influencing data user behavior and our results show that the distributed power control based on maximizing the net utility (utility minus the price) results in improving the Pareto e#ciency of the resulting operating point. Variat..

Year: 2001
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