A Comprehensive Study on RPL Challenges

Abstract

Wireless Sensor Networks (WSN) consists of sensor nodes that are limited in terms of energy, size, processing speed and memory. Routing in WSN demands quick and large data transfer uninterruptedly. Due to the dynamic nature of WSN, better bandwidth utilization and routing stability are essential. Depending on the network structure appropriate routing protocol is required. IPv6 Routing Protocol for LLN's (RPL) is a proactive routing protocol for Low power Lossy Networks (LLN's). Mobility, topology control and effective resource managements are still hard challenges for researchers. This paper provides an overview of recent advancements in RPL protocol that support mobility. Also, in addition to mobility, the bandwidth utilization and topology control are also highlighted. Finally, a comparative analysis for various protocols is presented.

RPL Cross-Layer Scheme for IEEE 802.15.4 IoT Devices With Adjustable Transmit Power

“…of combined metrics, which usually include a link-quality metric such as the Expected Transmission Count (ETX) [4], [10] plus some energy-related term (e.g., typically node's residual energy) [11], [12]. However, despite the intense research effort, improving energy efficiency persists as a challenge [3], [11], [13]. In the authors' view, two aspects contribute to the complexity of this problem.…”