Andersson, BjörnPereira, NunoTovar, EduardoGomes, Ricardo2014-02-062014-02-062011978-94-007-0637-8978-94-007-0638-5http://hdl.handle.net/10400.22/3764This paper addresses sensor network applications which need to obtain an accurate image of physical phenomena and do so with a high sampling rate in both time and space. We present a fast and scalable approach for obtaining an approximate representation of all sensor readings at high sampling rate for quickly reacting to critical events in a physical environment. This approach is an improvement on previous work in that after the new approach has undergone a startup phase then the new approach can use a very small sampling period.engWireless sensor networksMedium access control protocolData processingMeasurement system data handlingLocal area networksbook part10.1007/978-94-007-0638-5_2