Ignasi Vilajosana

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In the past few years, lossy compression has been widely applied in the field of wireless sensor networks (WSN), where energy efficiency is a crucial concern due to the constrained nature of the transmission devices. Often, the common thinking among researchers and implementers is that compression is always a good choice, because the major source of energy(More)
Lossy temporal compression is key for energy-constrained wireless sensor networks (WSNs), where the imperfect reconstruction of the signal is often acceptable at the data collector, subject to some maximum error tolerance. In this article, we evaluate a number of selected lossy compression methods from the literature and extensively analyze their(More)
In this paper, we take a hard look at the performance of REMOTE, a sensor network based application that provides a detailed picture of a boat movement, individual rower performance, or his/her performance compared with other crew members. The application analyzes data gathered with a WSN strategically deployed over a boat to obtain information on the boat(More)
Goal: precisely quantify WSN power consumption on a per application basis ►allows designers to appropriately size their scavenging and storage devices (at design time) • build on a model for TSCH networks energy • derive a model for data acquisition energy • derive a model for local data processing energy
As Wireless Sensor Networks are being adopted by industry and agriculture for large-scale and unattended deployments, the need for reliable and energy-conservative protocols become critical. Physical and Link layer efforts for energy conservation are not mostly considered by routing protocols that put their efforts on maintaining reliability and throughput.(More)
In October 1998, Hurricane Mitch triggered numerous landslides (mainly debris flows) in Honduras and Nicaragua, resulting in a high death toll and in considerable damage to property. The potential application of relatively simple and affordable spatial prediction models for landslide hazard mapping in developing countries was studied. Our attention was(More)
1.1 ABSTRACT The chapter describes the Calipso communication architecture for IP connectivity in wireless sensor networks and the Smart Parking application scenario developed within the Project. The use case is a real life demonstrator for traffic flow and parking monitoring deployed in the city of Barcelona, Spain. It is based on a communication(More)