A Novel Data Collection Method with Recharge Plan for Rechargeable Wireless Sensor Networks

Figure 12

Examples of the distribution of 200 sensors for the four data collection methods (the red double-circled nodes are the base stations located at the center of the sensing area).

(a) Direct transmission

(b) LEACH (the blue double-circled nodes are the cluster heads)

(c) Multihop routing with minimum hop counts (the blue lines are the routing paths and the dashed red lines link the sensors beyond the preset communication distance)

(d) Node-Gosper (my proposed method) (the red points are relay sensors and the blue points are normal sensors)