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Data Exchange Algorithm at Aggregate Level in the TWTBFC Model

  • Yinzhe GuoEmail author
  • Ryuji Oma
  • Shigenari Nakamura
  • Tomoya Enokido
  • Makoto Takizawa
Conference paper
Part of the Lecture Notes in Networks and Systems book series (LNNS, volume 97)

Abstract

In the TBFC (Tree-Based Fog Computing) and TWTBFC (Two-Way TBFC) models the electric energy consumed by fog nodes and servers can be reduced in the fog computing (FC) model. Here, fog nodes are hierarchically structured in a height-balanced tree, where a root node is a cloud of servers, leaf nodes are edge nodes which communicate with devices, and each node receives data from child nodes and sends the processed data to a parent node. In the TWTBFC model, nodes send processed data to not only a parent node but also each child node. In order to reduce the network traffic in the TWTBFC model, only aggregate nodes at some level collect the output data of every other aggregate node, i.e. aggregate data. Since only target actuators are to be activated, the aggregate data has to be only delivered to target actuators. Nodes whose descendant actuators are target ones are relay nodes. On receipt of aggregate data, only relay nodes forward the aggregate data to the child nodes. We evaluate the new TWTBFC model in terms of energy consumption of nodes and number of messages transmitted to deliver aggregate data to edge nodes.

Keywords

Energy-efficient fog computing IoT (Internet of Things) Two-way TBFC (TWTBFC) model Aggregate node 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Yinzhe Guo
    • 1
    Email author
  • Ryuji Oma
    • 1
  • Shigenari Nakamura
    • 1
  • Tomoya Enokido
    • 2
  • Makoto Takizawa
    • 1
  1. 1.Hosei UniversityTokyoJapan
  2. 2.Rissho UniversityTokyoJapan

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