Load Balancing Objective Function in RPL

Document Type Expired Internet-Draft (individual)
Authors Mamoun Qasem  , Ahmed Al-Dubai  , Imed Romdhani  , Baraq Ghaleb  , Jianqiang Hou  , Rahul Jadhav 
Last updated 2018-05-02 (latest revision 2017-10-29)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document proposes an extended Objective Function(OF)that balances the number of child nodes of the parent nodes to avoid the overloading problem and ensure node lifetime maximization in the IPv6 Routing Protocol for Low-Power and Lossy Networks (RPL). The standard OFs are used to build a Destination Oriented Directed Acyclic Graph (DODAG) where the bottleneck nodes may suffer from unbalanced traffic load. As a result, a part of the network may be disconnected as the energy of the overloaded preferred parent node will drain much faster than other candidate parents. Thus, a new RPL metric has been introduced to balance the traffic load over the network. Finally, the potential extra overhead has been mitigated using a new utilization technique.


Mamoun Qasem (m.qasem@napier.ac.uk)
Ahmed Al-Dubai (a.al-dubai@napier.ac.uk)
Imed Romdhani (i.romdhani@napier.ac.uk)
Baraq Ghaleb (b.ghaleb@napier.ac.uk)
Jianqiang Hou (houjianqiang@huawei.com)
Rahul Jadhav (rahul.ietf@gmail.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)