Cooperative power minimization for the coexistence of heterogeneous multi-hop networks

Abstract

The paper investigates how to minimize cooperative power consumption for the coexistence of heterogeneous multi-hop networks. We formulate a multiobjective optimization problem for the total power consumption of the two heterogeneous multi-hop networks and reformulate the nonlinear constraint to be linear. The optimal power curve — the minimum power consumption for both two heterogeneous multi-hop networks is studied in-depth. Through a novel approach based on adaptive weighted sum method, we transform it into a single-objective optimization problem and find the Pareto-optimal points iteratively to construct the minimum power curve. It demonstrates that cooperative power control can save more energy than the case without cooperative power control.