A review of RPL objective function based enhancement approaches

Abstract

Since the release of of the IPv6 Routing protocol for Low-Power and Lossy Networks by the IETF ROLL working group, several enhancement schemes were proposed. In fact, They aim to extend the network lifetime, reduce congestion, mitigate end to end delay and moderate energy consumption. In fact, considering the vast area of Low-Power and Lossy Networks applications, the routing protocol was designed with a great deal of flexibility without dictating any specific routing metric/constraint to be used for building the routing topology. This paper presents a deep review of recent works on Routing Protocol for Low-Power and Lossy Networks and highlights Objective Function enhancements scheme. The objective is to provide an insight into relevant efforts such as novel metrics design and fuzzy logic techniques used for the Objective Function metric combination. The proposed enhancement schemes, highlight some limitations and give useful guidelines for future developments are also discussed.