FRINK Linked Data Fragments server

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• W2020199765 abstract "무선 센서 네트워크(Wireless Sensor Network : WSN)에서 한정된 에너지를 가진 센서 노드의 동작 기간을 연장하기 위해서 LEACH와 PEGASIS, PEDAP 등의 대표적인 라우팅 방식이 제안되었다. 이들은 데이터가 완전 퓨전(perfect fusion)되는 환경에서 주기적으로 데이터를 수집하여 한 노드로 전송하는 convergecast 라우팅 방식을 사용한다. 그러나 convergecast와 에너지 분배를 동시에 다루는 과정에서 토폴로지에 관한 특성과 한계에 대한 연구는 거의 이루어지지 않았다. 이 논문은 한 번의 convergecast에 소비되는 총에너지의 관점에서 토폴로지를 다음과 같이 연구하였다. 우리는 주요 라우팅 토폴로지로 최소 스패닝 체인(Minimum Spanning Chain : MSC)과 최소 스패닝 트리(Minimum Spanning Tree : MST), PEGASIS 체인, 제안하는 LECSEN체인을 소개하거나 정의하였다. 우리는 MSC를 선형 프로그래밍(LP) 방식으로 풀었으며, MSC나 MST에 준하는 토폴로지를 만들기 위해서 LECSEN 체인을 제안하였다. Monte Carlo 방식의 시뮬레이션을 통해 토폴로지의 전체 길이와 각 링크 길이의 분포를 분석한 결과, 대부분의 WSN 환경에서 LECSEN은 MST에 필적할 만큼 에너지를 적게 소모하고, 각 센서 노드의 에너지 소비가 매우 균등하였다. 그러므로 우리는 LECSEN 체인이 WSN 라우팅에서 매우 유용하다는 사실을 확인하였다. In WSN(Wireless Sensor Network) many routing algorithms such as LEACH, PEGASIS and PEDEP consisting of sensor nodes with limited energy have been proposed to extend WSN lifetime. Under the assumption of perfect fusion, these algorithms used convergecast that periodically collects sensed data from all sensor nodes to a base station. But because these schemes studied less energy consumption for a convergecast as well as fairly energy consumption altogether, the minimum energy consumption for a convergecast was not focused enough nor how topology influences to energy consumption. This paper deals with routing topology and energy consumption for a single convergecast in the following ways. We chose major WSN topology as MSC(Minimum Spanning Chain)s, MSTs, PEGASIS chains and proposed LECSEN chains. We solved the MSC length by Linear Programming(LP) and propose the LECSEN chain to compete with MST and MSC. As a result of simulation by Monte Carlo method for calculation of the topology length and standard deviation of link length, we learned that LECSEN is competitive with MST in terms of total energy consumption and shows the best with the view of even energy consumption at the sensor nodes. Thus, we concluded LECSEN is a very useful routing topology in WSN." @default.
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• W2020199765 date "2008-08-29" @default.
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• W2020199765 title "LECSEN : Link Exchanged Chain in SEnsor Networks" @default.
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