A Hybrid IWO/PSO Algorithm for Pattern Synthesis of Conformal Phased Arrays

Bai, Yan-Ying; Xiao, Shaoqiu; Liu, Changrong; Wang, Bing‐Zhong

doi:10.1109/tap.2012.2231936

Cited by 92 publications

(47 citation statements)

References 17 publications

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“…IWO is a numerical stochastic optimization technique inspired by the colonization of weeds. As a result of investigation, weeds have shown to be very robust and adaptive to changes in the environment, where capturing their properties leads to a very powerful optimization technique [19][20][21][22][23][24][25]. Most importantly, the IWO method has shown its robustness in practice.…”

Section: Iwo Algorithmmentioning

confidence: 99%

“…Different evolutionary algorithms such as genetic algorithm (GA) [12] and cross entropy (CE) method [13] have been used for PAPR applications. Contrast to GA and CE, invasive weed optimization (IWO) algorithm [19][20][21][22][23][24] and particle swarm optimization [25][26][27][28] are inspired from the phenomena of colonization of invasive weeds in nature which is based on the biology and ecology of weeds. In this paper, we propose a newly suboptimal PRT set selection scheme based on a modified IWO algorithm, which can efficiently reduce the PAPR of the OFDM signals.…”

Section: Introductionmentioning

confidence: 99%

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PAPR reduction of OFDM using invasive weed optimization-based optimal peak reduction tone set selection

Hung

Cheng

Huang

2013

J Wireless Com Network

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Tone reservation (TR) is one of the attractive techniques to reduce peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing system. As conventional TR technique requires exhaustive searching over all the combinations of the given peak reduction tone (PRT) sets, it results in computational complexity that increases exponentially with the number of the subcarriers. In this paper, we aim to obtain a desirable PAPR reduction with low computational complexity. Since the process of searching the optimal PRT set can be categorized as combinatorial optimization with some variables and constraints, we propose a novel scheme, which is based on a nonlinear optimization approach named as invasive weed optimization method, to search the optimal combination of PRT set with low complexity. To validate the analytical results, extensive simulations have been conducted, showing that the proposed schemes can achieve significant reduction in computational complexity while keeping good PAPR reduction. As results of simulations, the proposed scheme shows almost the same PAPR reduction performance as compared with the genetic algorithm-based TR method which has been known to have the best performance and obtains near-optimal PRT sets.

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Section: Iwo Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

PAPR reduction of OFDM using invasive weed optimization-based optimal peak reduction tone set selection

Hung

Cheng

Huang

2013

J Wireless Com Network

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“…Since its inception, IWO has found successful application in many electromagnetic problems like design of Printed Yagi Antenna [13], E-shaped MIMO antenna [14], multi-feed reflector antennas [15], Broadband Patch Antenna [16], Conformal Phased Arrays [17], Circular Antenna Arrays [18] etc.. Results obtained using IWO for these problems are encouraging.…”

Section: Introductionmentioning

confidence: 96%

Synthesis of Thinned Array With Side Lobe Levels Reduction Using Improved Binary Invasive Weed Optimization

Liu¹,

Wu²

2014

PIER M

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Abstract-As a very powerful optimization algorithm, invasive weed optimization has been widely applied to continuous optimization problems in electromagnetic (EM) field. However, the optimization of a thinned array can be formulated as a discrete-variable optimization problem with solutions encoded as binary strings. Therefore, in this paper, an improved binary invasive weed optimization (IBIWO) is proposed to design a thinned array with minimum side lobe levels. To evaluate the performance of the proposed algorithm, two examples have been presented and solved. Simulation results of the proposed thinned arrays obtained by IBIWO are compared with published results to verify the effectiveness of the proposed method.

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“…Recently, a developed hybrid IWO with iterative Fourier technique (IWO-IFT) has been also proposed for the synthesis of a large planar thinned array [26]. Some other hybrid versions of IWO are also applied to the design of antenna arrays in [27][28][29][30]. In the same way, a discrete IWO (DIWO) has been developed for cooperative multiple task assignment of unmanned aerial vehicles [31].…”

Section: Introductionmentioning

confidence: 99%

Optimum design of non-uniform symmetrical linear antenna arrays using a novel modified invasive weeds optimization

Kenane

Djahli

2016

Archives of Electrical Engineering

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This paper presents a new modified method for the synthesis of non-uniform linear antenna arrays. Based on the recently developed invasive weeds optimization technique (IWO), the modified invasive weeds optimization method (MIWO) uses the mutation process for the calculation of standard deviation (SD). Since the good choice of SD is particularly important in such algorithm, MIWO uses new values of this parameter to optimize the spacing between the array elements, which can improve the overall efficiency of the classical IWO method in terms of side lobe level (SLL) suppression and nulls control. Numerical examples are presented and compared to the existing array designs found in the literature, such as ant colony optimization (ACO), particle swarm optimization (PSO), and comprehensive learning PSO (CLPSO). Results show that MIWO method can be a good alternative in the design of non-uniform linear antenna array.

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A Hybrid IWO/PSO Algorithm for Pattern Synthesis of Conformal Phased Arrays

Cited by 92 publications

References 17 publications

PAPR reduction of OFDM using invasive weed optimization-based optimal peak reduction tone set selection

PAPR reduction of OFDM using invasive weed optimization-based optimal peak reduction tone set selection

Synthesis of Thinned Array With Side Lobe Levels Reduction Using Improved Binary Invasive Weed Optimization

Optimum design of non-uniform symmetrical linear antenna arrays using a novel modified invasive weeds optimization

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