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Design, implementation and evaluation of an energy efficient RPL routing metric

In this thesis I proposed, developed and tested a new RPL routing metric based on the energy consumption of the nodes of a network. The network has a particular feature, i.e. the sensors are low power. This nodes are realized using the specifications of the new technology arises in the last years: the Internet of Things. The routing protocol is RPL, and 6LowPAN standard is introduced. I developed the routing metric using the operative system Contiki, and i tested it with the low power networks simultator Cooja. I named my routing metric ENTOT, and i compared it with ETX, one of the most efficient routing metric.

The thesis is structured as follows.
In Chapter 1 we provide an overview over Smart Objects networks, particularly describing what are the main features of low power networks, and what are the routing requirements for this type of networks.
In Chapter 2 is explained in detail how RPL protocol is designed, what are the steps to design a RPL routing metric, an example of a routing metric (ETX), and is mention ContikiRPL, the RPL version implemented in this operating system.
In Chapter 3 it is described how the energetic model and the routing metric based on the energy consumption (ENTOT) are implemented in Contiki.
Finally, in Chapter 4 we compare and evaluate the performance of ETX and ENTOT metric in a RPL scenario.

Mostra/Nascondi contenuto.
Chapter 1 Internet of Things and Low power and Lossy Networks 1.1 Introduction What’s the meaning of Internet of Things (IoT) ? Technically, we can define IoT as a wireless self-configuring sensors network, but the real sense is another. If every device in the world was equipped with an identifier device, our life would be totally different. If every object had a simple electronic intelligence, e.g., to understand where is located and interacting with the enviroment, it could be connected one other to the Internet in order to form an unique network to exchange informations. This is the Internet of things: daily life’s objects interconnected by web or mobile network speaking and basing on theirs collected informations may act accordingly. For example, we can imagine a scenario where the cars talk together to avoid accidents, or the appliances coordinate themselves to optimize the power consumption. Some years ago this was impossible to achieve, due to lack of technology, but nowadays this is possible thanks to the Smart Objects [15]. Smart Objects are the heart of IoT: they are small computers equipped with a sensor or 4

Laurea liv.II (specialistica)

Facoltà: Ingegneria

Autore: Fabio Demicheli Contatta »

Composta da 106 pagine.

 

Questa tesi ha raggiunto 547 click dal 17/04/2013.

Disponibile in PDF, la consultazione è esclusivamente in formato digitale.