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Adaptive Optimization for Optimal Mobile Sink Placement in Wireless Sensor Networks
        
        In recent years, Wireless Sensor Networks (WSN) with mobile sinks has attracted much attention as the mobile sink 
roams  over  the  sensing  field and  collects  sensing  data  from  sensor  nodes.  Mobile  sinks are mounted  on  moving  objects,  such 
as people, vehicles, robots, and so on. However, optimal placement of the sink for the effective management of the WSN is the 
major  challenge.  Hence,  an  adaptive  Fractional  Rider  Optimization  Algorithm  (adaptive-FROA)  is  developed  for  the  optimal 
placement  of mobile  sink in  WSN  environment  for  effective  routing.  The  adaptive  FROA,  which is  the  integration  of  the 
adaptive  concept  in  the FROA, operates based  on  the  fitness  measure  based  on  distance,  delay,  and  energy  measure  of  the 
nodes in the network. The main objective of the research work is to compute the energy and distance. The proposed method is 
analyzed based on the metrics, such as energy, throughput, distance, and lifetime of the network. The simulation results reveal 
that the proposed method acquired a minimal distance of 24.87m, maximal network energy of 94.54 J, maximal alive nodes of 
77, maximal throughput of 94.42 bps, minimum delay of 0.00918s, and maximum Packet delivery ratio (PDR) of 87.98%, when 
compared with the existing methods.    
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