• Journal of Internet of Things and Convergence
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• v.10 no.5
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• pp.87-93
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• 2024

This paper focuses on the potential field-based routing scheme developed for wireless multihop networks, emphasizing the exploration of the previously proposed virtual node concept to address network hole problems in dynamic network environments. Previous studies have demonstrated the superior performance of integrating the virtual node scheme into this routing strategy under network hole scenarios, but they have not addressed dynamic network conditions. This study directly considers dynamic network changes such as link failures or node breakdowns, validating the adaptability of the potential-field routing scheme integrated with the virtual node concept. Performance evaluations using the NS-3 simulator are conducted to demonstrate its improved adaptability to dynamic network change situations, compared to conventional approaches. This study highlights the significance of exploring new applications of the virtual node concept for effectively managing dynamic network changes in real-world scenarios.

• Journal of Internet of Things and Convergence
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• v.10 no.3
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• pp.1-6
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• 2024

In response to the increasing demand for unrestricted access to diverse services regardless of location, cost-effective and easily deployable Wireless Mesh Network (WMN) solutions have once again captured attention. This paper primarily addresses the implementation challenges of Autonomous Load-balancing Field-based Anycast routing+ (ALFA+) for three-dimensional (3D) WMNs. Subsequently, we evaluate the performance of ALFA+ in an 802.11-based 3D WMN testbed established within a university campus using commercial devices, thus validating the practical viability of ALFA+. While most prior research has relied on performance evaluation through virtual environment simulations, this study distinguishes itself by performance evaluations in a real-world testbed using commercial devices and providing detailed implementation-related information necessary for such evaluations. This approach holds considerable significance in assessing the actual applicability of ALFA+.

• Journal of KIISE:Computing Practices and Letters
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• v.16 no.6
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• pp.683-687
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• 2010

In this paper, we propose an anycast routing scheme for large-scale wireless mesh networks, which requires only one-hop local information with no flooding overhead. We develop an analytical model for anycast mesh networks based on an electrostatic theory. A finite difference method contributes to achieving gateway load balancing with constant control overheads. We verify the performance of the proposed scheme by simulations.