Dynamic Adaptive Management of Buffer for QoS Guarantees and Energy Reduction

Technological advances in communication networks have made to increase communication rate as well as energy consumption. Some equipments and protocol solutions have been developed to treat these problems e.g. Smart Sleeping and Rate Adaptation. We present an original and alternative adaptive solution from Automatic community to control the output flow of a node, in such a way that Quality of Service (QoS) improves and energy consumption is reduced. The controller is developed by using optimal control theory while guaranteeing asymptotic stability (Lyapunov stable) and avoiding losses. In order to validate this approach, we apply the adaptive controller in "Matlab-Simulink" and in the network simulator "NS-2". Within A DREAM framework, this "control green" will allow to improve energy consumption regarding traffic load and available energy in communication networks.