Simple Moment Generating Function Optimisation Technique to Design Optimum Electronic Filter for Underwater Wireless Optical Communication Receiver

Intesar F. El Ramley (), Saleha M. AlZhrani, Nada M. Bedaiwi, Yas Al-Hadeethi and Abeer Z. Barasheed
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Intesar F. El Ramley: Physics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Saleha M. AlZhrani: Physics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Nada M. Bedaiwi: Physics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Yas Al-Hadeethi: Physics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Abeer Z. Barasheed: Physics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia

Mathematics, 2024, vol. 12, issue 6, 1-23

Abstract: This paper introduces a new simple moment-generating function (MGF) design modelling method to conclude an optimum filter to maximize the Q-factor and increase the link communication span. This approach mitigates the pulse temporal dispersion, particularly the underwater wireless optical communication (UWOC) systems. Hence, some form of equalizing filter design is highly desirable. The model solution environment includes a Double Gamma Function (DGF) water channel impulse response, intersymbol interference (ISI), stochastic Poisson process, and additive Gaussian thermal noise (AGTN). The optimal filters exhibit temporal profiles comparable to those derived by published works based on complex Chernoff Bound (CB) and Modified Chernoff Bound (MCB) methods. The results show the impact of the optimum filter at a signal level and optical receiver level utilizing Eye-Diagrams and BER vs. Q-Factor, respectively. The computation involves four different UWOC propagation channel models for Coastal and Harbor waters. One of the main conclusions indicates that the optimum filter manages the temporal dispersion due to the ISI impairment correctly. Also, the proposed optimum filter reduces eye-opening and the corresponding Q-Factor by less than 15% for a five-times increase in pulse width for the same transmitted optical power level.

Keywords: MGF; UWOC; receiver filter design; eye diagram; Q-Factor; BER (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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