A performance evaluation framework for control loop interaction in Self Organizing Networks

The Self Organizing Network (SON) concept is a promising paradigm aiming to reduce both the capital and operational expenditures (CAPEX/OPEX) in future wireless networks through efficient self-configuration, self-optimization and self-healing functionalities. As for self-optimization, much effort has been devoted to standalone SON control loops, which, upon network metric observation, dynamically adjust the appropriate network parameters to enhance the overall network performance. However, less explored simultaneous operation of several SON control loops may cause conflicts between parameter adjustment and/or metric performance outcome. This paper focuses on SON mechanism interactions, providing a framework for further understanding and analysis. A basic two-SON mechanism interaction scenario will be provided along with an initial assessment of a simple SON interaction control.