A New Framework for Power Control in Wireless Data Networks: Games, Utility, and Pricing
D. Famolari, Narayan B. Mandayam, D.J. Goodman, Vraj P. Shah · Kluwer Academic Publishers eBooks · 2005
We develop a new framework for distributed power control for wireless data based on the economic principles of utility and pricing. Utility is defined as the measure of satisfaction that a user derives from accessing the wireless data network. Properties of utility functions are introduced and a specific function, based on throughput per terminal battery life-time including forward error control, is presented and shown to conform to those properties. Users enter into a non-cooperative game to maximize their individual utilities by adjusting their transmitter powers. A unique Nash equilibrium for the above game is shown to exist but is not Pareto efficient. A pricing function is then introduced which leads to Pareto improvements for the non-cooperative game. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.