• Title/Summary/Keyword: PERF join

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Efficient Record Filtering In-network Join Strategy using Bit-Vector in Sensor Networks (센서 네트워크에서 비트 벡터를 이용한 효율적인 레코드 필터링 인-네트워크 조인 전략)

  • Song, Im-Young;Kim, Kyung-Chang
    • Journal of the Korea Society of Computer and Information
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    • v.15 no.4
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    • pp.27-36
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    • 2010
  • The paper proposes RFB(Record Filtering using Bit-vector) join algorithm, an in-network strategy that uses bit-vector to drastically reduce the size of data and hence the communication cost. In addition, by eliminating data not involved in join result prior to actual join, communication cost can be minimized since not all data need to be moved to the join nodes. The simulation result shows that the proposed RFB algorithm significantly reduces the number of bytes to be moved to join nodes compared to the popular synopsis join(SNJ) algorithm.