Performance evaluation of three parent selection for RPL in smart grid network

To support a real-time communication of various system of smart grid, a data transmission time - expected transmission time (ETT) - needs to be considered. RPL protocol is a routing protocol which routes the data based on distance vector. The critical function for RPL protocol is a parent selection function. The function affects to the performance of RPL - reliability, node lifetime and also the transmission time. Once the parent is inappropriately chose, the system reliability degrades, the node life time is short and the transmission time also increases. To improve overall performance of parent selection of RPL, two parent selection mechanisms are proposed. First, EEA is proposed to prolong the node life time by considering remaining energy and ETX as the selection constraints. However, the appropriate weight has not been investigated yet. Later, WR-EERA is proposed to prolong overall network lifetime by adjusting the weight on node's rank. Nevertheless, these mentioned mechanisms have not been investigate the transmission time and the appropriate distance between nodes for smart grid system. In this paper, we investigate the appropriate distance between nodes in network based on RPL protocol that meets the requirements of smart grid application such as meter reading and real-time pricing.