Most routing algorithms for sensor networks focus on finding energy efficient paths to prolong the lifetime of sensor networks. As a result, the power of sensors on efficient paths depletes quickly, and consequently sensor networks become incapable of monitoring events from some parts of their target areas. In many sensor network applications, the events that must be tracked occur at random locations and have non-deterministic generation patterns. Therefore, ideally, routing algorithms should consider not only energy efficiency, but also the amount of energy remaining in each sensor, thus avoiding non-functioning sensors due to early power depletion. This paper introduces a new metric, energy cost, devised to consider a balance of sensors' remaining energies, as well as energy efficiency. This metric gives rise to the design of the distributed energy adaptive routing (DEAR) algorithm devised to balance the data traffic of sensor networks in a decentralized manner and consequently prolong the lifetime of the networks.

Dear Kiran Mathews,

the following sources about IPv6 Routing Protocol for LLNs may help you.

Good luck and best regards

Anatol Badach

RPL – IPv6 Routing Protocol for LLNs

https://www.researchgate.net/publication/320244798_RPL_-_IPv6_Routing_Protocol_for_LLNs

The Figures to the IoT Routing Protocol RPL

https://www.researchgate.net/publication/320255043_The_Figures_to_the_IoT_Routing_Protocol_RPL

Literature Collection on Routing in the Internet of Things (IoT) with RPL:

The Introduction

https://www.researchgate.net/publication/321965573_A_Literature_Collection_on_Routing_in_the_Internet_of_Things_IoT_with_RPL_-_The_Introduction

Part 1: RPL Framework

https://www.researchgate.net/publication/322211316_A_Literature_Collection_on_Routing_in_the_Internet_of_Things_IoT_with_RPL_-_Part_1_RPL_Framework

Part 2: RPL Extensions

https://www.researchgate.net/publication/321038248_A_Literature_Collection_on_Routing_in_the_Internet_of_Things_IoT_with_RPL_-_Part_2_RPL_Extensions

Part 3: RPL Analysis and Evaluation

https://www.researchgate.net/publication/322367185_A_Literature_Collection_on_Routing_in_the_Internet_of_Things_IoT_with_RPL_Part_3_RPL_Analysis_and_Evaluation

Part 4: RPL Applications – Concepts, Analysis and Evaluation

https://www.researchgate.net/publication/322603340_A_Literature_Collection_on_Routing_in_the_Internet_of_Things_IoT_with_RPL_Part_4_RPL_Applications_-_Concepts_Analysis_and_Evaluation

Part 5: RPL Implementations-Analysis and Evaluation

https://www.researchgate.net/publication/323111013_A_Literature_Collection_on_Routing_in_the_Internet_of_Things_IoT_with_RPL_Part_5_RPL_Implementations-Analysis_and_Evaluation

@Anatol Badach Thanks for the detailed information. Your work looks interesting.