Analysis of Network Lifetime of LEACH and LEACH-C for Free Space and Multipath Propagation by Varying Radio Energy Parameters

To attain peak performance throughout a wireless system's lifespan, Low Energy Adaptive Clustering Hierarchy (LEACH) merges the concepts of media access with energy-efficient clustering-based data transmission protocols. An optimization and more robust simulation known as Centralized LEACH (LEACH-C) is a modification of LEACH to ensure optimization and reduce information loss. We used the information about the node's placement and average energy in this centralized protocol which is called LEACH-C. We have presented the comparison of the lifetime of LEACH and LEACH-C using MATLAB simulation. The motive of this research is how the data rate, operating frequency, and antenna heights affected the network lifetime of LEACH and LEACH-C. Results from rigorous simulation conclude that the network lifetime of LEACH-C is 5.78% better than that of LEACH in the case of 914 kHz frequency and 1 Mbps bit rate of sensor node transmitter and antenna is 1.5 m above the ground. The last section of methodology and result show that, in the case of parameters of node transmitter defined in IEEE standard 802.15.4, the new frequency and bit rate affects the lifetime, energy consumption of LEACH and LEACH.