This paper explores an alternative to the conventional paradigm followed by wireless sensor networks (WSN), which dictates that a central server coordinates most actions of the WSN nodes. Instead, we study a cooperative sensing and processing approach. In this case nodes can cooperate to collect & analyse data and adjust the network behaviour responding to environmental changes, without constant server supervision. The main advantage is the opportunity to react to local events without the need for costly (in terms of energy) communication to the central server. As case study, we consider a WSN that monitors vehicles on isolated roads (or bridges). Our study allows predicting the conditions that favour the cooperative approach over the classical one. Preliminary experimental results confirm that, for a range of power settings, the cooperative strategy reduces the WSN energy consumption. The insight gained by this case study can be applied to other scenarios, enabling cooperative strategies to extend the WSN operational life beyond the limits of conventional approaches.
|Number of pages||6|
|Publication status||Published - Oct 2013|
|Event||National Telford Institute Advanced Research Workshop - Aberdeen, United Kingdom|
Duration: 23 Oct 2013 → 24 Oct 2013
|Workshop||National Telford Institute Advanced Research Workshop|
|Period||23/10/13 → 24/10/13|