On Regulating Lifetime of a 3-sink Wireless Sensor Network Deployed for Precision Agriculture
Kaushik Ghosh, Sarmistha Neogy, Pradip Kumar Das, Mahima Mehta · INTERNATIONAL JOURNAL OF NEXT-GENERATION COMPUTING · 2017
The main motivation behind this work is regulating network lifetime of a WSN deployed in an agricultural land. In this paper we have proposed one 3-sink WSN architecture to be used for precision agriculture applications. The objective of this paper is twofold; to propose a model of WSN to be used for precision agriculture that prolongs network lifetime, and to regulate network lifetime through introduction of two parameters – neighbor density and effective network density. Neighbor density is the measure of density of neighbors around a particular node. Here we have seen that at an optimum value of neighbor density, lifetime of a network reaches its pinnacle. However, regulating network lifetime through neighbor density requires the nodes to be deployed in grid fashion. For networks where nodes are deployed in random fashion, effective network density may be used as regulating parameter for prolonging network lifetime. In this paper we propose two routing schemes: KPS and Loop Free (LF)-KPS for network lifetime enhancement. The results show that LF-KPS in particular outperforms some well-known protocols by a considerable margin.