Reference Paper:  L-RPL: RPL powered by laplacian energy for stable path selection during link failures in an Internet of Things network-[2020]

Research Area:

IOT

Research Topics:

Contiki Cooja Simulator Projects in RPL Routing Protocol

Tools Languages:  Contiki-Cooja / Contiki NG simulator, Front End: Java, Back End: C

Software Requirement:  Vmware workstation player, Instant Contiki-3.0

Aim and Objectives:  
To develop a Laplacian Energy project for choosing a stable path during link failure using RPL in an IoT network using the Contiki Cooja simulator. 

Contribution:  
1. This paper investigates in detail the behavior of RPL-s Expected Transmit Count (ETX)-based path selection for longer routes and the impact of node density and network link or node failures. 
2. Laplacian energy-based path selection is proposed to enhance RPL by introducing additional neighbor connectivity information into the path selection process to provide stable paths.

Performance Evalution:  
The simulation experiments were performed with one root node, and 50 randomly placed client nodes. The sink node is a sender for the downward traffic, and all client nodes act as recipients.
Performance Metrics:
 •  Packet Reception Ratio
 •  PDR
 •  Energy Consumption
 •  Throughput
 •  Latency
 •  Control Packet Overhead
 •  Execution Time
 •  CPU Energy Consumption