디지털융복합연구 (Journal of Digital Convergence)

  • 제17권9호
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  • Pages.153-161
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  • 2019
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  • 2713-6434(pISSN)
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  • 2713-6442(eISSN)
한국디지털정책학회 (The Society of Digital Policy and Management)
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무선 홈 네트워킹 서비스를 위한 스마트 캐싱 기법

A Smart Caching Scheme for Wireless Home Networking Services

  • 이종득 (전북대학교 전자공학부)
  • Lee, Chong-Deuk (Division of Electronic Engineering, Chonbuk National University)
  • 투고 : 2019.02.27
  • 심사 : 2019.09.20
  • 발행 : 2019.09.28
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초록

무선 홈 프록시에서 미디어 객체 세그먼트들에 대한 식별은 캐싱 지연에 중요한 영향을 미치게 되며, 캐싱 지연은 프록시의 성능을 떨어뜨리는 원인을 제공한다. 본 논문에서는 홈 네트워크의 프록시 성능을 향상시키고 미디어 객체 세그먼트들에 대한 캐싱 성능을 향상시키기 위하여 SFSC(Single Fetching Smart Caching)전략과 MFSC(Multi-Fetching Smart Caching)전략을 제안한다. SFSC전략은 홈 노드가 요청한 객체 세그먼트를 한 번에 하나씩 순차적으로 패칭하여 캐싱을 수행하는 기법으로서 보다 빠른 캐시 히트율을 보장해 주는 기법이며, MFSC전략은 홈 노드가 요청한 객체 세그먼트를 한 번에 여러 개씩 block화하여 캐시하는 기법으로서 처리율을 향상시키기 위한 기법이다. 시뮬레이션 결과 SFSC기법은 MFSC기법에 비해서 캐시 히트율과 캐싱 지연이 보다 효율적임을 알 수 있었으며, 반대로 객체 세그먼트에 대한 처리율은 MFSC기법이 SFSC기법에 비해서 보다 효율적임을 알 수 있었다.

Discrimination of media object segments in wireless home proxies has a significant impact on caching delay, and caching delay degrades the performance of the proxy. In this paper, we propose a Single Fetching Smart Caching (SFSC) strategy and a Multi-Fetching Smart Caching (MFSC) strategy to improve the proxy performance of the home network and improve the caching performance for media object segments. The SFSC strategy is a technique that performs caching by sequential fetching of object segments requested by the home node one at a time, which guarantees a faster cache hit rate, and the MFSC strategy is a technique that caches the media object segments by blocking object segments requested by the home node one at a time, which improves the throughput of cache. Simulation results show that the cache hit rate and the caching delay are more efficient than the MFSC technique, and the throughput of the object segment is more efficient than that of the SFSC technique.

키워드

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