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Antiretroviral therapy of HIV infection using a novel optimal type-2 fuzzy control strategy
Alexandria Engineering Journal ( IF 2.460 ) Pub Date : 2020-11-19 , DOI: 10.1016/j.aej.2020.11.009
Shu-Bo Chen; Farhad Rajaee; Amin Yousefpour; Raúl Alcaraz; Yu-Ming Chu; J.F. Gómez-Aguilar; Stelios Bekiros; Ayman A. Aly; Hadi Jahanshahi

The human immunodeficiency virus (HIV), as one of the most hazardous viruses, causes destructive effects on the human bodies’ immune system. Hence, an immense body of research has focused on developing antiretroviral therapies for HIV infection. In the current study, we propose a new control technique for a fractional-order HIV infection model. Firstly, a fractional model of the HIV model is investigated, and the importance of the fractional-order derivative in the modeling of the system is shown. Afterward, a type-2 fuzzy logic controller is proposed for antiretroviral therapy of HIV infection. The developed control scheme consists of two individual controllers and an aggregator. The optimal aggregator modifies the output of each individual controller. Simulations for two different strategies are conducted. In the first strategy, only reverse transcriptase inhibitor (RTI) is used, and the superiority of the proposed controller over a conventional fuzzy controller is demonstrated. Lastly, in the second strategy, both RTI and protease inhibitors (PI) are used simultaneously. In this case, an optimal type-2 fuzzy aggregator is also proposed to modify the output of the individual controllers based on optimal rules. Simulations results demonstrate the appropriate performance of the designed control scheme for the uncertain system.

更新日期:2020-11-21
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