Politecast - a new communication primitive for wireless sensor networks

Lundén, Marcus (2010) Politecast - a new communication primitive for wireless sensor networks. Masters thesis, Royal Institute of Technology, KTH.

PDF (Master of Science thesis.) - Published Version


Wireless sensor networks have the potential for becoming a huge market. Ericsson predicts 50 billion devices interconnected to the Internet by the year 2020. Before that, the devices must be made to be able to withstand years of usage without having to change power source as that would be too costly. These devices are typically small, inexpensive and severally resource constrained. Communication is mainly wireless, and the wireless transceiver on the node is typically the most power hungry component. Therefore, reducing the usage of radio is key to long lifetime. In this thesis I identify four problems with the conventional broadcast primitive. Based on those problems, I implement a new communication primitive. This primitive is called Politecast. I evaluate politecast in three case studies: the Steal the Light toy example, a Neighbor Discovery simulation and a full two-month deployment of the Lega system in the art gallery Liljevalchs. With the evaluations, Politecast is shown to be able to massively reduce the amount of traffic being transmitted and thus reducing congestion and increasing application performance. It also prolongs node lifetime by reducing the overhearing by waking up neighbors.

Item Type:Thesis (Masters)
Uncontrolled Keywords:wireless sensor networks, communication, programming primitives, low-power, efficient, experimental, deployment
ID Code:4103
Deposited By:MSc Marcus Lunden
Deposited On:01 Mar 2011 15:41
Last Modified:01 Mar 2011 15:41

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