In wireless sensor networks, battery life is a key
resource that must be conserved as much as possible. Nowadays,
the main way of achieve power saving in this type of circuits is to
implement low-power RF (Radio Frequency) circuitry and
network protocols that try to minimize the number of
transmissions by the air. We think that adaptation to RF
environment can minimize the power consumption and supply an
extra saving of energy in this type of systems. This paper presents
a power-saving method for wireless sensor networks with realtime
constrains. Description of an example of this type of systems
will be done in order to supply background where needs and
challenges will be presented. Then, method will be presented with
some results in order to obtain conclusions and an estimation of
future works and applications.Junta de Andalucía P06-TIC-229
