An Energyefficient Data Dissemination Method in Wireless Sensor Network

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An Energyefficient Data Dissemination Method
in Wireless Sensor Network

• APNG 2008
• Jieun Cho
• (jieun_at_sookmyung.ac.kr)
• 4, August, 2008

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Content

• Introduction
• Relative work
• Proposed work
• Conclusion

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Introduction

• Design principles
• Power efficiency
• Data-centric nodes
• Data aggregation is not always desirable
• Attribute-based addressing and location awareness
• Energy-efficiency is primary concern.
• Mobile sinks
• Excessive Power Consumption
• Increased Wireless Transmission Collisions
• State Maintenance Overhead

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Relative work(1)

• Directed diffusion
• Flooding based routing protocol

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Relative works(2)

• TTDD(A Two-tier Data Dissemination Model for
  Large-scale Wireless Sensor Networks)
• Construct grid structure per each source node
• Data dissemination using DN(Dissemination
  Node)
• Supportingmobility of sink nodes

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Relative works(3)

• ALS(the Anchor Location Service)
• A grid-based location service strategy
• Use one grid structure

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Relative works(4)

• SEAD (Scalable Energy-efficient Asynchronous
  Dissemination)
• Construct and update the d-tree dynamically
• Two main function
• Add
• Remove
• The source
• The root of the d-tree
• Multiple dissemination trees
• will be constructed separately

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Relative works(5)

• Sink location service
• divides the boundary of network into four
  sections of A, B, C, and D.
• transmission process

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Goal, Idea

• Goal
• Efficient data dissemination from multiple source
  to multiple mobile Sinks
• Reducing the number of packets for efficient
  energy consumption
• Supporting mobile nodes
• Main idea
• Using a permanent grid structure
• Cross-shaped trajectory
• Use Cluster concept
• Use hybrid routing

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Our work Design -1/3

• Four 1-level grids are combined into a 2-level
  grid.
• A 2-level grid is provided with an ID

• 2-level Grid structure

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Our work Design -2/3

• Data Announcement and Query Transfer

Sink
1-LevelCluster Header
2-LevelCluster Header
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Our work Design -3/3

• Data Transmission

Sink
Source
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Conclusions

• Good energy conserving a data dissemination
  method comparing with TTDD
• Hierarchical Routing Protocol using a 2-level
  permanent grid structure.
• Further work
• data fusion and data transmission methods.

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Thank you ! Ask any questions.