Figure 4.22 shows the average processing cost as a function of LMRs number. It can be
noticed that in all considered protocols the average processing cost increases when the
number of LMRs increase. The proposed protocol SReM performs better in comparison with
the other three protocols because in SReM the increase of LMRs will cause an increase in the
number of BNRs nodes and the size of multicast packet is fixed, so the total processing cost
will increase in small values. For the other three considered protocols, the increase of LMRs
will cause high increase in processing cost because the size of the multicast packet and the
number of destinations in multicast packets will increase.
Figure 4.22 Average processing cost as a function of LMRs number
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