3D 환경을 고려한 무선 센서 네트워크의 키 사전 분배 기법 실험 연구
An Experimental Study on Pairwise Key Pre-distribution Schemes of Wireless Sensor Networks Considering 3D Environments
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초록
무선 센서 네트워크 보호를 위해 다양한 키 분배 및 관리 기법들이 제안되었지만 대부분 2차원(2D) 환경만을 고려한 시뮬레이션 및 성능 실험을 수행하였다. 본 논문에서는 실제 환경 3차원(3D) 지형적 특성이 키 사전 분배 기법에 미치는 영향을 알아보기 위해 Full Pairwise (FP) 기법, Random Pairwise (RP) 기법, 두 가지를 결합한 Full and Random Pairwise (FRP) 기법의 성능을 2D 환경과 3D 환경에서 비교분석한다. 실험을 위해Blender와 Unity 등의 3차원 그래픽 툴과 네트워크 시뮬레이터인 NS-3를 활용한다. 결과적으로, 실제 3차원 지형에 따라 각 기법의 성능에 차이가 있음을 확인하였으며 배치 오류를 고려한 위치 기반 분배 기법인 FRP가 여러측면에서 가장 효율성이 높음을 확인하였다.
Abstract
To protect wireless sensor networks (WSNs), various key distribution and management schemes have been proposed. However, most of them conducted simulations and experiments for performance evaluation by considering only the two-dimensional (2D) environments. In this paper, we investigate the effect of real-world three-dimensional (3D) topographic features on the key pre-distribution schemes for WSNs. For this purpose, we analyze and compare the performance of three pairwise key pre-distribution schemes in 2D and 3D environments: full pairwise (FP), random pairwise (RP), and full and random pairwise (FRP) schemes. For the experiments, we employ a network simulator NS-3 and 3D graphic tools such as Blender and Unity. As a result, we confirm that there was a difference in the performance of each scheme according to the actual 3D terrain and that the location-based FRP that considers deployment errors, has the highest efficiency in many aspects.
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