Han, Fengrong and Izzeldin, Ibrahim Mohamed Abdelaziz and Kamarul Hawari, Ghazali and Zhao, Yue and Li, Ning and UNSPECIFIED (2023) Optimized range-free localization scheme using autonomous groups particles swarm optimization for anisotropic wireless sensor networks. IEEE Access, 11. pp. 26906-26920. ISSN 2169-3536. (Published)
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Abstract
Location information is a required concern for localization-based service application in the field of wireless sensor networks (WSNs). Distance Vector-Hop (DV-Hop) algorithm as the most typical range-free localization scheme is more suitable for large-scaled WSNs. Its localization performance is good in even distributed networks. However, it demonstrated extremely poor accuracy under anisotropic networks, which is an urgent problem that need to be addressed. Accordingly, an optimized DV-Hop localization algorithm is put forward in this study with considering several anisotropic factors. Accumulated hop size error and collinearity are two main reasons that led to low accuracy and poor stability. Hence, hop size error of anchors is reduced by introducing distance gap based on anchors. Besides, weighted least square method is adopted to replace the least square method to against anisotropic factors caused by irregular radio patterns. Moreover, an Autonomous Groups Particles Swarm Optimization (AGPSO) is employed to further optimize the obtained coordinate in the first round. It developed a novel method to determine localization coverage. The localization coverage is also added to be one evaluation metric in our study, which makes up for the lack of this evaluation indicator in most of the studies. Simulation results display good localization accuracy and strong stability under anisotropic networks. In addition, it also concluded that metaheuristic optimization algorithm and weighted least square method are more suitable to conquer anisotropic factor. It briefly points out a new direction for the future research work in the localization area under anisotropic networks.
| Item Type: | Article |
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| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Anchor node; Distance-vector hop (DV-Hop); Least square method; Particles swarm optimization (PSO); Range-free localization scheme; Wireless sensor networks (WSNs) |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Faculty/Division: | College of Engineering Faculty of Electrical and Electronic Engineering Technology |
| Depositing User: | Mr Muhamad Firdaus Janih@Jaini |
| Date Deposited: | 02 Oct 2023 07:48 |
| Last Modified: | 02 Oct 2023 07:48 |
| URI: | http://umpir.ump.edu.my/id/eprint/38265 |
| Download Statistic: | View Download Statistics |
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