Constrained particle swarm algorithms for optimizing coverage of large-scale camera networks with mobile nodes

Constrained particle swarm algorithms for optimizing coverage of large-scale camera networks with mobile nodes
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用于优化移动节点大规模摄像机网络覆盖范围的约束粒子群算法

DOI:
10.1007/s00500-012-0978-2
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发表时间:
2013-01
期刊:
影响因子:
4.1
通讯作者:
Emile A. Hendriks
Emile A. Hendriks
中科院分区:
计算机科学3区
文献类型:
--
作者:
徐义春;雷帮军;Emile A. Hendriks

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合理的传感器布局是大规模传感器网络可用性最大化的关键。特别是,传感器网络覆盖的总感测区域可以最大化,如果我们最佳地安排所有的传感器。为了解决这一覆盖优化问题,本文研究了一种典型的传感器网络-摄像机网络。在该网络中,摄像机的位置和方向都可以调整。一个有趣的约束是移动距离限制。它将优化问题转化为一个约束问题。为了解决这个问题,我们调查作为可能的解决方案的粒子群优化(PSO)算法,即吸收PSO,惩罚PSO和反射PSO的三个变化。它们是根据几个基准测试的。实验结果表明,粒子群算法可以有效地应用于约束摄像机网络的覆盖优化。该算法适用于一般传感器网络的覆盖优化。统计分析表明,上述三种算法的性能是由高到低的。结果进一步证明了吸收粒子群算法是提高上述传感器网络覆盖率的最优选择。
Proper sensor placement is crucial for maximizing the usability of large-scale sensor networks. Specially, the total sensible area covered by a sensor network can be maximized if we optimally arrange all sensors. To address this coverage optimization problem, this paper studies a typical sensor network—camera network. In this network, both locations and orientations of the cameras can be adjusted. An interesting constraint is the moving distance limitation. It transforms the optimization into a constrained problem. To tackle this problem, we investigate as possible solutions three variations of the particle swarm optimization (PSO) algorithm, namely the absorbing PSO, the penalty PSO, and the reflecting PSO. They are tested against several benchmarks. The experiments show that the PSO can be effectively applied on optimizing the coverage of the constrained camera network. And it can be easily adapted for coverage optimization of general sensor networks. The statistical analysis shows that the performances of the above three algorithms are in descending order. The results further prove that the absorbing PSO is an optimal choice for improving the coverage of the aforementioned sensor network.
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DOI: 10.1016/j.eswa.2009.02.077
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