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Robust congestion control in cognitive radio network using dynamic event‐triggered sliding mode
Author(s) -
Majumder Tirtha,
Mishra Rajiv Kumar,
Sinha Abhinav,
Singh Sudhansu Sekhar,
Kumar Sahu Prasanna
Publication year - 2019
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.4206
Subject(s) - computer science , network congestion , cognitive radio , robustness (evolution) , quality of service , packet loss , computer network , bandwidth (computing) , network packet , throughput , robust control , wireless , real time computing , control system , telecommunications , biochemistry , chemistry , electrical engineering , gene , engineering
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.