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Coverage Optimization Strategy for Wireless Sensor Networks Based on Improved Northern Goshawk Optimization Algorithm
DOI:10.3390/biomimetics11060378.png)
摘要
En 中文
无线传感器网络(WSNs)覆盖优化面临节点分布不均和易受覆盖盲区影响的挑战。本文引入并改进了雀鹞优化(NGO)算法:采用Logistic混沌映射初始化种群以增强遍历性,引入非线性动态权重以平衡全局探索与局部开发,并整合高斯–Lévy混合变异机制以强化跳出局部最优的能力。标准测试函数实验表明,改进算法(INGO)能稳定逼近单峰和多峰函数的理论最优值,收敛速度和求解精度显著优于原始NGO,标准差更小且鲁棒性更强。INGO应用于2D和3D WSNs的覆盖优化,以覆盖率为适应度函数,通过迭代优化输出最优节点部署坐标。仿真结果显示,INGO在2D场景下实现最佳覆盖率达98.32%,比NGO的90.6%高出7.72个百分点;在3D场景下最佳覆盖率达72.32%,比NGO的65.54%高出6.78个百分点。同时,INGO实现更均匀的节点部署,有效减少覆盖盲区,迭代后期收敛曲线平滑无震荡,稳定性显著优于NGO。通过合理设置种群规模和迭代次数,INGO可提升覆盖性能,为复杂环境下无线传感器网络的高效部署提供可靠技术方案。
Keyword:
wireless sensor networks
coverage optimization
northern goshawk optimization
Tent chaotic map
Gaussian–Lévy mutation
期刊
B
IF:
3.9
论文数:
3.3K
被引数:
5.1K
机构
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