Journal of KIISE (정보과학회 논문지)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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An Energy-Aware Cooperative Communication Scheme for Wireless Multimedia Sensor Networks

무선 멀티미디어 센서 네트워크에서 에너지 효율적인 협력 통신 방법

  • 김정오 (인하대학교 정보통신공학과) ;
  • 김현덕 (한국과학기술연구원 센서 시스템 연구센터) ;
  • 최원익 (인하대학교 정보통신공학과)
  • Received : 2014.10.13
  • Accepted : 2015.01.27
  • Published : 2015.05.15
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Abstract

Numerous clustering schemes have been proposed to increase energy efficiency in wireless sensor networks. Clustering schemes consist of a hierarchical structure in the sensor network to aggregate and transmit data. However, existing clustering schemes are not suitable for use in wireless multimedia sensor networks because they consume a large quantity of energy and have extremely short lifetime. To address this problem, we propose the Energy-Aware Cooperative Communication (EACC) method which is a novel cooperative clustering method that systematically adapts to various types of multimedia data including images and video. An evaluation of its performance shows that the proposed method is up to 2.5 times more energy-efficient than the existing clustering schemes.

무선 센서 네트워크에서 에너지 효율을 높이기 위해 클러스터링 방법이 제안되었다. 클러스터링 방법은 데이터를 수집하고 전달하는 계층 구조를 형성하고 있다. 그러나 대용량 데이터를 전송하는 무선 멀티미디어 센서 네트워크에서 기존의 무선 센서 네트워크의 클러스터링 기법은 과도한 데이터 전송에너지 소모량과 극도로 짧은 수명으로 인하여 적용하는 데에 어려움이 있다. 본 논문에서는 기존의 문제점을 해결하기 위하여 상황에 따른 협력 통신 기법을 적용한 대용량 데이터 전송 방법으로 EEAC를 제안하여 에너지 효율을 높였다. 실험결과 제안방법은 기존의 방법보다 에너지 효율이 약 2.5배 향상되었음을 보였다.

Keywords

Acknowledgement

Supported by : 한국연구재단

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