Fig. 2From: Delay-aware tree construction and scheduling for data aggregation in duty-cycled wireless sensor networksAn example of delay-aware tree construction. a Step 1: constructing layered structure. b Step 2 in L2: calculating delay from candidate dominator to upper dominators. c Step 2 in L2: finding the shortest path in terms of delay. d Step 3 in L2: adding dominators and connectors to the CDS tree. e Step 2 and step 3 in L3. f Updating layer sets according to T CDS Back to article page