Robust congestion control in cognitive radio network using dynamic event‐triggered sliding mode
Tirtha Majumder, Rajiv Kumar Mishra, Abhinav Sinha, Sudhansu Sekhar Singh, Prasanna Kumar Sahu · International Journal of Communication Systems · 2019
Summary The ever‐increasing service demand from wireless users under restricted bandwidth necessitates the development of suitable congestion control scheme for throughput maximization. A robust congestion controller design has been addressed in this work to sustain necessary Quality of Service in Cognitive Radio Network. The goal is to reduce packet loss while ensuring optimum utilization of available resources. Sliding mode controller proclaimed for its disturbance rejection capabilities and robustness has been used to design the proposed controller. Using the benefits of sliding mode control, dynamic event‐triggering strategies have been combined for better utilization in resource‐constrained environments. Control execution requires minimal updates while guaranteeing the desired closed‐loop system behavior. The controller efficacy has been validated in simulations.