An Energy-Efficient and Self-Regioning Based RPL for Low-Power and Lossy Networks
Ming Zhao, G. G. Md. Nawaz Ali, Rongxing Lu, Peter Han Joo Chong · 2016
Low Power and Lossy Networks (LLNs), as it covers a wide scope of applications, such as building automation, industrial control, healthcare etc., has received considerable attention in recent years. In many LLNs applications, Point-to-point (P2P) communication is crucial, which extremely need to be supported by reliable and energy- efficient routing protocols. However, traditional routing protocols usually propagate the whole network to discover a reliable P2P route, causing a huge energy consumption. Moreover, it is a critical but difficult task to achieve the requirements of reliability and energy efficiency at the same time in LLNs. Therefore, in this paper, in order to address the above challenges, we propose a novel energy-efficient region-based routing protocol, called ER-RPL, which attains an energy-efficient data delivery without compromising the reliability. In contrast of traditional routing protocols where all the nodes are required for route discovery, in ER-RPL only a subset of nodes are required to participate in the job, which is the key to energy conservation. Extensive simulations are conducted, and the results demonstrate that ER-RPL has a great performance superiority over two benchmark protocols, i.e., RPL and P2P-RPL.