이동 멀티-홉 IoT 네트워크에서 가상인프라를 이용한 중복 경로 기반 효율적인 데이터 전송 제어
Virtual Infrastructure based Efficient Data Transmission in Mobile Multi-Hop IoT Networks
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초록
본 논문에서는 대규모 이동 애드혹 네트워크를 위한 새로운 전송 방식인 SCORE (synchronization and core node based redundant routing)를 제안한다. 첫째, core 노드, 동기화 및 가상 인프라의 개념을 제안하며, 둘째, 최적의 코어 노드 경로 설정을 위하여, 정수 계획법 (Integer Programming, IP) 문제를 설계하고 라그랑지안 완화법을 사용하여 해결한다. 셋째, 노드의 이동 동기화를 기반으로 코어 노드간 안정적인 로컬 중복 경로를 설정하는 방법을 제시한다. 마지막으로, 시뮬레이션을 통해, 제안하는 전송 방식이 평균 처리량, 종단 간 지연 및 경로 재설정 횟수 측면에서 기존 전송 제어 방식보다 우수한 성능을 나타냄을 확인하였다.
Abstract
In this paper, we propose a SCORE (synchronization and core node based redundant routing), a new routing method for large-scale mobile ad hoc networks. First, we propose the concepts of core node, synchronization, and virtual infrastructure. Second, to set the optimal core node path, we design an Integer Programming (IP) problem and solve it using Lagrangian relaxation. Third, we present a method to establish stable local redundant path between core nodes based on node movement synchronization. Finally, through simulation, it was confirmed that the proposed transmission method outperforms the existing transmission control method in terms of average throughput, end-to-end delay, and the number of re-routing request.
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