In this paper, we propose a 3-level heterogeneous network model for WSNs to enhance the network lifetime, which is characterized by a single parameter. Depending upon the value of the model parameter, it can describe 1-level, 2-level, and 3-level heterogeneity. Our heterogeneous network model also helps to select effective active sensor nodes for scheduling. We compute the network lifetime by implementing two protocols for our network model, which include ALBP and ADEEPS. The ALBP implementation for the existing 1-level, 2-level, and 3-level heterogeneous network models are denoted as ALBP-1, ALBP-2, and ALBP-3, respectively, and for our proposed 3-level heterogeneous network model, the ALBP implementations are denoted as het ALBP-1, het ALBP-2, and het ALBP-3, respectively. The naming convention for ADEEPS is done in the same way. The hetALBP-3 provides maximum network lifetime 11.96% for linear energy model and 11.86% for quadratic energy model, than that of the ALBP-3, without any increase in the network energy for 60M sensing range and 25 number of targets. The hetADEEPS-3 increases the network lifetime by 20.0% for linear energy model and 15.55% for quadratic energy model, with respect to ADEEPS-3 protocol, without any increase in the network energy for 60M sensing range and 25 number of targets.
Heterogeneity, network lifetime, scheduling, sensor nodes, adjustable sensing range.
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THE INTERNATIONAL JOURNAL OF FORENSIC COMPUTER SCIENCE - IJoFCS
Volume 11, Number 1, pages 8-29, DOI: 10.5769/J201601001 or http://dx.doi.org/10.5769/J201601001
Energy Efficient Scheduling Protocols for Heterogeneous WSNs
By Samayveer Singh and Aruna Malik
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