Table 4.

Type of measurements provided by other authors.

Reference	Type of measurements	Purpose
[34]	It gives the simulations of the average cluster size and the number of clusters versus the degree of the nodes.	Parameters related with the cluster size and the number of clusters
[40]	It gives the average number of cluster heads versus the number of nodes and the cluster size versus the number of nodes.
[42]	It gives the average number of clusters versus the transmission range or the maximum displacements
[13]	It provides the energy consumption versus the distance to the nodes and the number of nodes, the number of alive nodes versus the round and the energy consumed versus the number of rounds.	Energy issues
[19]	It shows the energy consumption versus the number of L-sensors, average number of working nodes versus the number of sensors and the energy consumption versus the average desired coverage degree.
[32]	It gives the number of nodes alive versus the time, the energy dissipation versus the percentage of nodes that are cluster heads, and the energy dissipation versus the network diameter.
[37]	It compares several cluster-based protocols versus the number of rounds, number of messages received versus the energy dissipation and energy consumed and the number of nodes alive as a function of network area.
[43]	It shows the measurements of the number of alive nodes versus the time, the energy dissipation versus the time and the energy dissipation in the setup phase.
[44]	It shows the percentage of energy consumed versus the cluster radius, the average cluster head residual energy versus the cluster radius and the cluster energy dissipated versus the number of nodes.