Research Area:  Internet of Things
Since its development by IETF, the IPv6 routing protocol for low power and lossy networks (RPL) remains the subject of several researches. RPL is based on objective function as a mechanism selection of paths in the network. However, the default objective functions standardized selects the routes according to a single routing metric that leads to an unoptimized path selection and a lot of parent changes. Thus, we propose in this paper weighted combined metrics objective function (WCM-OF) and non-weighted combined metrics objective function (NWCM-OF) that are based both on additive link quality and energy metrics with equal weights or not to achieve a tradeoff between reliability and saved energy levels. The proposed objective functions were implemented in the core of Contiki operating system and evaluated with Cooja emulator. Results show that the proposed objective functions improved the network performances compared to default objective functions.
Author(s) Name:  Abdelhadi Eloudrhiri Hassani, Aicha Sahel, Abdelmajid Badri
Journal name:  International Journal of Communication Networks and Information Security
Publisher name:  IJCNIS
Volume Information:   Vol 12, No 1 (2020)
Paper Link:   https://www.ijcnis.org/index.php/ijcnis/article/view/4446