Load Balancing Objective Function in RPL
draft-qasem-roll-rpl-load-balancing-02

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roll                                                                    
Internet-Draft                                                  M.Qasem 
Intended Status: Standards Track                              A.Al-Dubai
Expires: May 2, 2018                                          I.Romdhani
                                                                B.Ghaleb
                                             Edinburgh Napier University
                                                                  J. Hou
                                                               R. Jadhav
                                                     Huawei Technologies
                                                        October 29, 2017

                Load Balancing Objective Function in RPL
                 draft-qasem-roll-rpl-load-balancing-02

Abstract

   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.

Status of this Memo

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INTERNET DRAFT         Load Balancing OF for RPL        October 29, 2017

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Copyright and License Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
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Table of Contents

   1  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1  Terminology . . . . . . . . . . . . . . . . . . . . . . . .  3
   2  DODAG construction in a nutshell  . . . . . . . . . . . . . . .  4
   3 Load balancing in RPL  . . . . . . . . . . . . . . . . . . . . .  4
   4  The proposed objective function . . . . . . . . . . . . . . . .  6
     4.1 Balancing the load traffic . . . . . . . . . . . . . . . . .  6
     4.2 A new utilization technique for DIO message  . . . . . . . .  6
     4.3 Proposed New Metric for Parent Selection . . . . . . . . . .  7
   5  Security Considerations . . . . . . . . . . . . . . . . . . . .  9
   6  IANA Considerations . . . . . . . . . . . . . . . . . . . . . .  9
   7  References  . . . . . . . . . . . . . . . . . . . . . . . . . .  9
     7.1  Normative References  . . . . . . . . . . . . . . . . . . .  9
     7.2  Informative References  . . . . . . . . . . . . . . . . . . 10
   Appendix A.  . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 10

 

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1  Introduction

   IPv6 Routing Protocol for LLNs (RPL) [RFC6550] defined two OFs to
   optimize the path selection towards the root node, namely, the OF
   zero (OF0) [RFC6552], and the Minimum Rank with Hysteresis OF
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