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Table 1 Summary of notation.

From: Determining Localized Tree Construction Schemes Based on Sensor Network Lifetime

Total number of nodes (network size)

Number of nodes in one hop level with MHR in linear topology

Number of children of node

Number of descendants of node

Energy consumption of node per round

Distance between the nearest adjacent nodes

Radio range determined by link threshold

Distance between sink and the furthest node (network radius)

Number of nodes in a radio range

,

Expected transmission count (ETX)

 

between nodes and , and distance

,

Link threshold ETX and PRR