Low-energy adaptive clustering hierarchy ("LEACH")

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LEACH

• NetSim Simulator Implementation

Tetcos
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LEACH

• Stands for Low Energy Adaptive Clustering
  Hierarchy.
• Simple Routing Protocol in WSN(Wireless Sensor
  Network)
• MAC Protocol Integrated with Clustering
• LEACH is a cross layer protocol.

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LEACH (Contd)

• Goal
• Low Energy Consumption required to create and
  maintain clusters in order to improve lifetime

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LEACH (Scenario)
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SINK NODE

• Primary Controller in WSN
• Initiate, terminate and route communication
  around the network

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CLUSTER HEAD

• Cluster Head
• From each Cluster, one sensor is elected as
  Cluster Head, which
• - Collects Data from surrounding sensors in
  that cluster.
• -Passes that data to the Base Station or the
  next Cluster Head.
• LEACH uses Dynamic Clustering Method i.e job of
  Cluster Head changes after some time.

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Implementation in NetSim

• Node ? Cluster Head ? Sink Node
• Static Routes have been defined
• CH1 ? CH3
• SINK NODE
• CH2 ? CH4

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Implementation in NetSim(Contd)

• If Network-out Event
• Device ID Source ID -the Next hopCH of
  cluster
• Device ID ! Source ID -Next hop Static
  route mentioned
• If Network-In Event
• Device ID Destination ID -accept the packet
  for higher layer
• Device ID ! Destination ID -Generates
  Network-out event and perform above steps

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THANK YOU