Abstract
Nowadays, because of the unpredictable nature of sensor nodes, propagating sensory data raises significant research challenges in Wireless Sensor Networks (WSNs). Recently, different cluster-based solutions are designed for the improvement of network stability and lifetime, however, most of the energy efficient solutions are developed for homogeneous networks, and use only a distance parameter for the data communication. Although, some existing solutions attempted to improve the selection of next-hop based on energy factor, nevertheless, such solutions are unstable and lack a reducing data delivery interruption in overloaded links. The aim of our proposed solution is to develop Reliable Cluster-based Energy-aware Routing (RCER) protocol for heterogeneous WSN, which lengthen network lifetime and decreases routing cost. Our proposed RCER protocol make use of heterogeneity nodes with respect to their energy and comprises of two main phases; firstly, the network field is parted in geographical clusters to make the network more energy-efficient and secondly; RCER attempts optimum routing for improving the next-hop selection by considering residual-energy, hop-count and weighted value of Round Trip Time (RTT) factors. Moreover, based on computing the measurement of wireless links and nodes status, RCER restore routing paths and provides network reliability with improved data delivery performance. Simulation results demonstrate significant development of RCER protocol against their competing solutions.
Highlights
Wireless Sensor Networks (WSNs) can be defined as a collection of self-organized minute devices, named as sensor nodes
A traditional cluster-based protocol LEACH[36] has been presented, such solution depends on generating random clusters, which results in unbalanced energy consumption among nodes and role of cluster heads (CHs) are not evenly distributed across the network field
It is obvious that Reliable Cluster-based Energy-aware Routing (RCER) protocol has superior performance, like 11.5%, 12.2%, 14.7%, and 23% improvement is achieved in network lifetime
Summary
WSN can be defined as a collection of self-organized minute devices, named as sensor nodes. Hierarchical-based routing protocols are alternate concepts that are widely used to support efficient route discovery and energy efficiency for WSNs [14,15,16,17]. Such schemes are useful in those environments that required scalability to hundreds and thousands of sensor nodes with efficient load distribution. Our proposed protocol focuses on developing Reliable Cluster-based Energy-aware Routing for heterogeneous WSNs to increase stability period with the least data relaying interval and route breakages. The routing paths are updated based on network measurements for supporting network reliability This may lead to a decrease in end-to-end delay and energy consumption with high data delivery performance.
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