The (low-data-rate)
C2WSN market is expected to grow significantly in the near future: The volume
of low-data-rate wireless devices is forecast to be three times the size of Wi-Fi
by the turn of the decade, due to the expected deployment of the systems based
on the ZigBee/IEEE 802.15.4 standard (industry observers expect the number of
ZigBee-compliant nodes to increase from less than 1 million in 2005 to 100 million
in 2008).