KIPS Transactions on Software and Data Engineering (정보처리학회논문지:소프트웨어 및 데이터공학)

Korea Information Processing Society (한국정보처리학회)
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SWoT Service Discovery for CoAP-Based Sensor Networks

CoAP 기반 센서네트워크를 위한 SWoT 서비스 탐색

  • 유명한 (강릉원주대학교 컴퓨터공학과) ;
  • 김상경 (강릉원주대학교 컴퓨터공학과)
  • Received : 2015.07.17
  • Accepted : 2015.08.27
  • Published : 2015.09.30
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Abstract

On the IoT-based sensor networks, users or sensor nodes must perform a Service Discovery (SD) procedure before access to the wanted service. Current approach uses a center-concentrated Resource Directory (RD) servers or P2P technique, but these can cause a point-of-failure or flooding of SD messages. In this paper, we proposes an improved SWoT SD approach for CoAP-based sensor networks, which integrates Social Web of Things (SWoT) concept to current CoAP-based SD approach that makes up for weak points of existing systems. This new approach can perform a function like a keyword or location-based search originated from SNS, which can enhances the usability. Finally, we implemented a real system to evaluate.

IoT 기반 센서네트워크에서 사용자 또는 센서노드가 원하는 서비스에 접근하기 위해서는 기본적으로 서비스 탐색이 요구된다. 기존의 서비스 탐색 관련 연구는 중앙집중적인 Resource Directory(RD) 서버나 P2P 방식을 이용한다. 그러나 이러한 방식들은 point-of-failure나 서비스 탐색 메시지 플러딩(flooding)을 초래한다. 따라서 본 논문에서는 기존의 CoAP 기반 서비스 탐색 방식에 Social Web of Things(SWoT) 개념을 접목함으로써 기존 방식의 단점을 극복하고 소셜 네트워크 서비스(SNS)를 바탕으로 키워드 기반 탐색과 위치 기반 탐색 등의 기능을 새롭게 추가하여 편의성을 제고하였다. 제안하는 SWoT 서비스 탐색 기술의 검증을 위해 테스트베드를 구축하여 시험하고 평가하였다.

Keywords

References

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