A novel cache replacement algorithm for cooperative caching in wireless multimedia sensor networks

Vincent Shin-Mu Tseng, Ming Hua Hsieh, Kawuu W. Lin

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

In recent years, integrrited applications with multimedia devices and wireless sensor networks promoted the evolution of wireless sensor networks, namely wireless multimfdia snsor nEtworks (WMSAs,). ThE applications in WMSNs havE to focus on both energy saving and application-level quality of service (QoS). Due to the characteristics in WMSNs, such as resource constraints and variable channel capacity, efficiently achieving the application-level QoS in WMSNs is a challenging task. To overcome this challenge, in this paper we proposed a new kind of pattern named temporal region requesting pattern (TRRP,) and a novel algorithm named TRRP-Mine for mining TRRPs efficiently. We also designed a temporal region requesting cost function of cache replacement, abbre viated as TRRC, for the cooperative caching multimedia content in WMSNs. Empirical evaluations under various simulation conditions showed that the proposed method deliverw eicellent performance in terms of hit rate and the number of replacements. ICIC International

Original languageEnglish
Pages (from-to)763-776
Number of pages14
JournalInternational Journal of Innovative Computing, Information and Control
Volume7
Issue number2
StatePublished - 1 Feb 2011

Keywords

  • Cache replacement
  • Data mining
  • Multimedia sensor networks
  • Temporal region requesting pattern

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