Resource oriented topology construction to ensure high reliability in IoT based smart city networks

摘要

Today, advanced metering infrastructure (AMI) is a subject that is undergoing intense study in smart city perspective, where the quality of service is the main concern. Hence, data routing is a key challenge in such a network. So far, the routing protocol for low power and lossy network (RPL) is considered to fit on AMI structure for achieving the expected network requirements. However, it is not optimized, as its parent selection mechanism attracts a large number of nodes and constructs the unbalance topology that degrades the network reliability. To overcome this problem, in this paper, we propose an efficient parent selection scheme that avoids the overburdened parent. The scheme combines the multiple routing metrics to calculate the rank, and that results in the balanced topology formation, which ensures the highest reliability in the RPL based AMI network. We evaluate the proposed work by implementing in Contiki OS with Cooja simulator. The simulation results show that the proposed work provides a higher packet delivery ratio, a lower latency, and a higher throughput as compared to default RPL.