Abstract
Minimization of energy consumption is the main attention of researchers while developing a routing protocol for wireless sensor networks, as sensor nodes are equipped with limited power supply. Virtual topology is an integral part of routing, and grid-based routing protocols are quite popular due to their simplified and efficient virtual grid topology construction. Although a list of surveys exists that either focus on routing protocols in a broader way or on other virtual topologies, none of these surveys are concerned about grid topology and grid-based routing protocols. Having this motivation in mind and considering the impact of these routing protocols on controlling and managing the energy consumption of wireless sensor networks, this article provides an expansive assessment of grid-based routing protocols based on their methodology. In this survey, the existing grid-based routing protocols are classified into two categories from the perspective of sink mobility: static sink and mobile sink. A phase-wise comprehensive overview of these routing protocols is provided in chronological order, along with their comparative analysis. Furthermore, the characteristics, design issues, and challenges of grid-based routing protocols are also provided.
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