Distributed Non-Autonomous Power Control Through Distributed Convex Optimization

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Executive Summary

The authors consider the uplink power control problem where mobile users in different cells are communicating with their base stations. They formulate the power control problem as the minimization of a sum of convex functions. Each component function depends on the channel coefficients from all the mobile users to a specific base station and is assumed to be known only to that base station (only CSIR). They then view the power control problem as a distributed optimization problem that is to be solved by the base stations and propose convergent, distributed and iterative power control algorithms. These algorithms require each base station to communicate with the base stations in its neighboring cells in each iteration and are hence non-autonomous.

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