Dual-Objectives Mobile-RPL Routing Protocol Based QoS Data Gathering over Low Power Lossy Networks for Smart City Applications: DMRPL

Taking into consideration of the Quality of Service (QoS) centric communication over IoT based Smart City Planning and Management (SCPM) applications where delay resilient and reliable data gathering are must, in this paper a highly robust Dual Objectives Mobile IPv6 routing protocol for Low Power Lossy Network (LLNs) (DMRPL) has been developed. Unlike classical RPL routing the proposed DMRPL routing model incorporates a robust link quality (i.e., Received Signal Strength Indicator (RSSI)) based mobility management, proactive network management, Dual Objective Functions (RSSI and ETX) and Dynamic link quality based best parent node selection for reliable data transmission. In addition DMRPL applies a novel fault-resilient link repair model to assure alternate forwarding path formation for timely data delivery to the destination for optimal decision process. Performance evaluation under different network conditions has revealed that the proposed DMRPL routing protocol outperforms native RPL protocol while preserving backward compatibility that makes it suitable to be used for real-time IoT data gathering for SCPM applications.