I. INTRODUCTION
HE increasing interest in the field of Wireless Sensor
Networks (WSNs) has already led to extensive studies
concerning the new challenges that researchers and
programmers have to overcome: energy efficiency, scarce
computing and storage resources, unreliable communication,
harsh environments, etc. Therefore, most of the initiatives
have focused on tackling these difficulties rather than
providing rich functionality within complex world scenarios.
Consequently, usual applications utilize sensor nodes for
monitoring or tracking purposes within a rather static pattern:
collect data, perform some in-network processing (optional)
and forward results to a central system.
T
Recent initiatives try to enhance this vision by transferring
additional intelligence and responsibility to sensor nodes, as
they are proximate to the point of action. Based on these
considerations, we have started to investigate the ways in
which they become beneficial and usable in complex realworld
applications.
The contribution of this paper is to extend the range of
functionality of WSNs beyond what centralised, monitoringpurposes
schemes can provide. It does so by describing a case
study of the use of WSNs in a transport and logistics process