基于改進(jìn)人工螢火蟲(chóng)算法的無(wú)線(xiàn)傳感網(wǎng)絡(luò )覆蓋優(yōu)化

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基于改進(jìn)人工螢火蟲(chóng)算法的無(wú)線(xiàn)傳感網(wǎng)絡(luò )覆蓋優(yōu)化
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作者單位:(1.廣東石油化工學(xué)院 實(shí)驗教學(xué)部計算機中心, 廣東 茂名 525000;2.廣東石油化工學(xué)院 計算機與電子信息學(xué)院, 廣東 茂名 525000)
作者簡(jiǎn)介:賴(lài)錦輝(1977-),女 ,廣東茂名人,碩士,講師,主要從事網(wǎng)絡(luò )、算法及人工智能等方向的研究。 梁 松(1974-), 男,湖北荊州人,碩士,實(shí)驗師,主要從事算法和人工智能方向的研究。 [FQ)]
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中圖分類(lèi)號:TP393
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Optimization Strategy of Wireless Sensor Networks Coverage Based on Improved Artificial Glowworm Swarm Optimization Algorithm[HS)]

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(1.Computer Center, Department of Experiment Teaching,Guangdong University of Petrochemical Technology, Maoming 525000, China;2.College of Computer and Electronic Information,Guangdong University of Petrochemical Technology,Maoming 525000,China)

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摘要:

為了提高網(wǎng)絡(luò )資源利用率延長(cháng)網(wǎng)絡(luò )生存時(shí)間,提出一種基于共軛梯度法改進(jìn)人工螢火蟲(chóng)算法(CAGSO)的WSN覆蓋優(yōu)化方案；共扼梯度法是利用目標函數的梯度逐步產(chǎn)生共軛方向并將其作為搜索方向的方法,即利用已知點(diǎn)處的梯度構造一組共扼方向并沿這組共扼方向進(jìn)行搜索,這種方法經(jīng)有限次迭代必達極小點(diǎn)；首先建立以覆蓋率、節點(diǎn)利用率和能量均勻為準則的覆蓋優(yōu)化數學(xué)模型,然后采用改進(jìn)的CAGSO算法求解該模型,從而得出最優(yōu)覆蓋方案；仿真分析說(shuō)明,相比基本人工螢火蟲(chóng)算法,改進(jìn)的CAGSO算法優(yōu)化的網(wǎng)絡(luò )覆蓋率可以達到94.11％,有效實(shí)現WSN覆蓋優(yōu)化。

Abstract:

In order to improve the utilization of network resources and prolong the network lifetime, a wireless sensor network coverage optimization Strategy is proposed based on artificial glowworm swarm optimization algorithm(CAGSO). Conjugate gradient method is the use of the gradient of the objective function to construct a set of conjugate direction, and then search along the conjugate direction , this method can get minimum through finite iterations. Firstly, a model of coverage optimization in WSNs is built up by taking network coverage rate, node utilization and node uniformity as the criterion, and then the CAGSO is used to solve the model,and finally got the coverage optimal Strategy.The simulation results show that:compared to the basic AGSO, the CAGSO optimize the network coverage to 94.11%, it can effectively provide the optimal solution of network coverage.

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賴(lài)錦輝,梁松.基于改進(jìn)人工螢火蟲(chóng)算法的無(wú)線(xiàn)傳感網(wǎng)絡(luò )覆蓋優(yōu)化計算機測量與控制[J].,2014,22(6):1862-1864,1874.

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收稿日期:2013-12-21
最后修改日期:2014-02-08
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在線(xiàn)發(fā)布日期: 2014-11-12
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