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The Warning Energy Aware Clusterhead. Tarek Sheltami KFUPM CCSE COE. WEAC Infrastructure Creation Protocol. Nodes Classifications: myCH = 0 Clusterhead myCH = -1 Free node myCH > 0 Zone_MT. WEAC Infrastructure Creation Protocol (Cont’d). BPL < THRESHOLD_1. BPL > THRESHOLD_1.
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The Warning Energy Aware Clusterhead Tarek Sheltami KFUPM CCSE COE
WEAC Infrastructure Creation Protocol • Nodes Classifications: • myCH = 0 Clusterhead • myCH = -1 Free node • myCH > 0 Zone_MT
WEAC Infrastructure Creation Protocol (Cont’d) BPL < THRESHOLD_1 BPL > THRESHOLD_1 Merge Accpt. Merge REQ 20 5 myCH = 0 myCH = -1 myCH = 20 myCH = -1 An MT sends a merge-request message to another MT if the latter has a higher energy level and it should be > Threshold_1
Selecting Gateways • The least number of neighbors method • The highest energy level method • The Gateway Selection Algorithm
An MT is eligible to be a clusterhead and willing to accept other MTs to be under its supervision if these MTs have a lower BPL Return
An MT ignores any merge request messages that are sent to it by other MTs. However, if the MT is serving as a clusterhead, it will remain a clusterhead Return
If an MT is serving as a clusterhead, it set its warningThreshold flag to true, informing its zone_MTs to look for another clusterhead, nonetheless, they can remain with it till its BPL drains down to THRESHOLD_3 Return
An MT ignores any merge request messages and will send iAmNoLongerYourCH message to all the nodes under its supervision, if it was serving other nodes Return