Due to the growing need for higher speed data, the 5G terrestrial heterogeneous wireless network deployments are expected to happen quickly throughout the world in the next decade. In such type of networks, mm-wave sm...
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Due to the growing need for higher speed data, the 5G terrestrial heterogeneous wireless network deployments are expected to happen quickly throughout the world in the next decade. In such type of networks, mm-wave small-cells overlapped the sub-6 GHz macro-cells being used to serve to population-rich areas. Subsequently, many problems appear with the antenna design technologies. The presented antenna is functioning at a frequency range from 24.8 to 31.6 GHz, with a 24% bandwidth and 8.5 dB peak gain at 27 GHz. It encompasses the complete 28 GHz frequency band utilized through 5G applications. Consequently, fifth-generation communication systems are best suited for it. The proposed Hamiltonian deep neural network optimized with pelican optimization algorithm-fostered Substrate-Integrated Waveguide Antenna Design for 5G (SIW-HDNN-POA-5G) is implemented, and performance of proposed technique is estimated based on several metrics, including resonant frequency (GHz), reflection coefficient (S11 in dB), mean absolute error (MAE), and root mean square error (RMSE). The proposed SIW-HDNN-POA-5G method provides 24.36%, 33.55% and 44.22% higher gain and 43.21%, 38.87% and 25.65% lesser mean absolute error comparing to the existing designs, like Design of Zero Clearance SIW End fire Antenna Array Based on Machine Learning-Assisted optimization (SIW-MLAO-5G), SIW-Fed Wideband Filtering Antenna for Millimeter-Wave Applications (SIW-5G-MLOM), and Compact SIW Fed Dual-Port Single Element Annular Slot MIMO Antenna for 5G mm Wave Applications (SIW-FWFA-MMWA), respectively.
To accurately predict reservoir porosity, a method based on bi-directional long short-term memory with attention mechanism (BiLSTM-AM) optimized by the improved pelican optimization algorithm (IPOA) is proposed. First...
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To accurately predict reservoir porosity, a method based on bi-directional long short-term memory with attention mechanism (BiLSTM-AM) optimized by the improved pelican optimization algorithm (IPOA) is proposed. Firstly, the nonlinear inertia weight factor, Cauchy mutation, and sparrow warning mechanism are introduced to improve the pelican optimization algorithm (POA). Secondly, the superiority of IPOA is verified by using the CEC-2022 benchmark test functions. In addition, the Wilcoxon test is applied to evaluate the experimental results, which proves the superiority of IPOA against other popular algorithms. Finally, BiLSTM-AM is optimized by IPOA, and IPOA-BiLSTM-AM is used for porosity prediction in the Midlands basin. The results show that IPOA-BiLSTM-AM has the smallest prediction error for the verification set samples (RMSE and MAE were 0.5736 and 0.4313, respectively), which verifies its excellent performance.
This research proposes a new wrapper model based on chaos theory and nature-inspired pelican optimization algorithm (POA) for feature selection. The base algorithm is converted into a binary one and a chaotic search t...
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This research proposes a new wrapper model based on chaos theory and nature-inspired pelican optimization algorithm (POA) for feature selection. The base algorithm is converted into a binary one and a chaotic search to augment POA's exploration and exploitation process, denoted as chaotic binary pelican optimization algorithm (CBPOA). The main focus of chaos theory is to resolve the slow convergence rate as well as entrapment in local optimal issues of classical POA. Therefore, ten dissimilar chaotic maps are entrenched in POA to tackle these issues and attain a more robust and effective search mechanism. CBPOA executes on continuous search;thus, the continuous search is reformed to a discrete one by adapting transfer functions. In CBPOA, eight transfer functions are used to find the best one and inspect CBPOA. Consequently, the performance of the CBPOA has been investigated by targeting several metrics under 18 UCI datasets. The best variant is nominated and explored the performance with classical wrapper-based and filter-based schemes. Furthermore, the proposed CBPOA is evaluated using 23 functions from CEC-2017, 2018 and 2020 benchmarks. As an outcome, CBPOA has accomplished better outcomes than existing schemes and is superior in handling feature selection problems.
This paper addresses the challenge of protecting electrical networks in the presence of distribution generators (DGs). The use of DGs affects fault currents, leading to miscoordination between protection relays and ca...
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This paper addresses the challenge of protecting electrical networks in the presence of distribution generators (DGs). The use of DGs affects fault currents, leading to miscoordination between protection relays and causing constraints on network reliability. To tackle this issue, the authors propose an adaptive protection scheme (APS) based on a modified pelican optimization algorithm (MPOA) and active database management system (ADBMS). The APS coordinates directional overcurrent relays and distance relays, while the MPOA simulates a pelican mating strategy and includes a modified internal equation. The proposed APS is further upgraded with ADBMS to save system resources by storing relay settings in the database and calling them when the state of DGs changes without running optimizationalgorithms. The effectiveness of the proposed APS is validated on the Institute of Electrical and Electronics Engineers (IEEE) eight-bus test system and the IEEE 14-bus distribution network. Results indicate that the APS can effectively protect electrical networks in the presence of DGs, while the ADBMS upgrade saves system resources. The use of distribution generators affects fault currents, leading to miscoordination between protection relays and causing constraints on network reliability. To tackle this issue, an adaptive protection scheme (APS) based on a modified pelican optimization algorithm (MPOA) and active database management system is proposed. The APS coordinates directional overcurrent relays and distance relays, while the MPOA simulates a pelican mating strategy and includes a modified internal ***
This work presents an efficient multi-objective version of the pelican optimization algorithm (POA) which is recently proposed in the family of meta-heuristic algorithms. It is called a multi-objective pelican Optimiz...
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ISBN:
(纸本)9783031248474;9783031248481
This work presents an efficient multi-objective version of the pelican optimization algorithm (POA) which is recently proposed in the family of meta-heuristic algorithms. It is called a multi-objective pelican optimization algorithm (MOPOA). From the literature, it is observed that the POA performed well on a set of unconstrained classical optimization problems as well as some engineering design problems. To extend its applicability to multi-objective engineering design models, the MOPOA has been proposed and applied for two engineering design models, four bar truss and speed reducer problems. The obtained results are compared with the literature and they proved that the MOPOA is an efficient and robust optimizer.
Recently, the combination of Deep Learning (DL) methods within the Internet of Things (IoTs) has developed in the agricultural field, especially in the domain of pest management. This study considers the implementatio...
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In order to optimize the performance of a Solar Photovoltaic (PV) system, it is necessary to develop an appropriate PV cell model and accurately determine the unknown parameters associated with the model. The process ...
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In order to optimize the performance of a Solar Photovoltaic (PV) system, it is necessary to develop an appropriate PV cell model and accurately determine the unknown parameters associated with the model. The process of extracting parameters for PV models is a complex optimization issue that involves nonlinearity and multiple models. Accurate estimation of the characteristics of PV units is crucial since these factors significantly affect the performance of PV systems in terms of power and current generation. Consequently, this research presents an advanced methodology, known as the pelican optimization algorithm (POA), aimed to find the optimal values for the unspecified parameters of PV units. In this study, the Single Diode Model (SDM) is employed to analyze four datasets like RTC France, Photowatt-PWP201, STP-120/36, as well as STM6-40/36 PV panels. The POA algorithm is utilized to determine the unknown parameters of solar PV modules. Furthermore, to enhance the precision of the obtained solutions, this study incorporates the Newton-Raphson (NR) method into the POA algorithm. The POA achieves the optimum Root Mean Square Error (RMSE) values for the four PV models (RTC France, Photowatt-PWP201, STM6-40/36 and STP6-120/36) and the values are found to be 7.7298E-04, 2.0528E-03, 1.7220E-03 and 1.4458E-02 respectively. From the results, it is observed that, POA exhibit superior performance compared to the other MH optimizationalgorithms. Furthermore, the statistical findings show that the POA algorithm has a higher average robustness and accuracy than the other algorithms.
Economic Dispatch (ED) is vital to running a power system. It is capable of lowering operational costs and conserving energy resources. The ED problem that is addressed in this paper is non-convex and quadratic in nat...
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ISBN:
(纸本)9798350349696;9798350349689
Economic Dispatch (ED) is vital to running a power system. It is capable of lowering operational costs and conserving energy resources. The ED problem that is addressed in this paper is non-convex and quadratic in nature, having system constraints such as power balancing and generation limit constraints. The effect of valve-point loading is also considered in the generation cost function. A penalty function strategy is employed to solve the constraint violation problems inherent in this ED problem. The penalized cost of generation is calculated using static penalty functions for infeasible solutions. In this study, we present a pelican optimization algorithm (POA) based strategy for addressing ED problems, which takes its inspiration from the natural world. Inspiring itself from the pelican's foraging habits, POA is a population-based meta-heuristic algorithm with two basic stages: exploration and exploitation. It has a good rate of convergence. The functionality of POA is evaluated using four different test systems of varying degrees of complexity. The results of the experiments and comparisons with other techniques that have been described for ED solutions demonstrate that POA is capable of producing a solution of comparable quality.
The transmission of detected information to a central base station is critical in Wireless Sensor Networks (WSNs). These sensor devices work within the limits of restricted resources due to their compact size and reli...
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When both an absolute value function and a cosine function are introduced for chaotic sequence generation, coexisting attractors with different polarities and locations could be extracted by the offset boosting of the...
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When both an absolute value function and a cosine function are introduced for chaotic sequence generation, coexisting attractors with different polarities and locations could be extracted by the offset boosting of the initial condition, and thus a hyperchaotic map with distance-increasing coexisting attractors is constructed. It is found that this map has two controllers for rescaling the oscillation totally and partially. The digital circuit implementation shows good consistency with numerical simulation. Moreover, the parameter adaptation in the basic pelican optimization algorithm (POA) is improved by the above-mentioned hyperchaotic map. Correspondingly, the Hyperchaotic pelican optimization algorithm (HCPOA) is constructed, where the hyperchaotic sequences are employed as the sampling pool when random numbers are required in the basic POA. Furthermore, the impact of chaos regulation on the performance of HCPOA is investigated, and the indicators of HCPOA are analyzed by employing five benchmark functions, where the single attractor shows better performance than the double-cavity attractor. The methods of HCPOA proposed in this paper bring the chance to improve the quality of solutions and the ability to escape local optima.
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