Mobile Base Station and Clustering to Maximize Network Lifetime in Wireless Sensor Networks

Figure 1

An illustrative example of virtual cluster heads calculation, for 𝐾=5 clusters. PC_𝑖 and VCH_𝑖, 1≤𝑖≤𝐾 are the locations of clusters’ area centre points and virtual cluster heads, respectively. 𝐿 is the length of the BS tour required, and 𝐿_𝐾 is the BS tour length connecting PC_𝑖.