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Sensor network nodes are spreaded over specific area with limited battery energy, low computational capacity and restricted communication bandwidth. In Sensor networks, the cluster-based routing algorithms are used to reduce the energy consumption of nodes and prolong the network lifetime. In most cluster-based algorithms, a predefined number of clusters or cluster heads is required. In some cases the nodes' density and distribution significantly affect clustering techniques applied in wireless sensor networks. In this work, the authors propose a routing approach namely as Reverse Transmission Approach (RTRA) where the authors have established a reverse transmission for some intermediate node which are located in the path of the cluster head to base station.
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