Implementing RPL in a mobile and fixed wireless sensor network


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Implementing RPL in a mobile and fixed wireless sensor network

by Simen.Hammerseth
Supervisor(s) Knut.Øvsthus, Josef.Noll
Due date 2011/11/30
Status Finished
Problem description: In 2008 the Internet Engineering Task Force (IETF) formed a new working group called ROLL. Its ob- jective was to specify routing solutions for Low Power and Lossy Networks (LLNs). The working group is currently designing a new routing protocol called RPL (Routing Protocol for Low Power and Lossy Networks) which is a work in progress towards a RFC in IETF in [1].

LLN nodes typically operate with constraints on processing power, memory and energy (battery), and their interconnections are characterized by high loss rates, low data rates and instability. This document presents an implementation of RPL in the OMNeT++ simulation environment. A frame- work called MiXiM is developed for simulating wireless sensor networks. Approximately two thousand lines of C++ code was written to accomplish a accurate simulation of RPL. The RPL may use different metrics for establishing routes. Two alternative metrics were implemented and assessed: hop count metric and node energy metric. The former does not take battery capacity into consideration while selecting paths in the network. The latter distributes the traffic among neighbors to off load constrained nodes.

Methods and Tools:
Time schedule
Approved by
Keywords Mobile Networks, Sensor Networks, OMNET
Depiction File:MasterHammerseth2011.pdf

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The thesis is finished, and was delivered 28Nov2011