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networks.
This includes 6LoWPAN-compressed IPv6 networks. It also
supports the synchronized TDMA network properties used in industrial
low-power applications (e.g., WirelessHART and ISA100.11a).
Finally,
15.4e accommodates extensions, so that these diverse networks (as well as
future ones) can extend the standard MAC without violating the standard
itself. This decouples WSN development from the three to four year long
IEEE standards development process. It will give the IEEE standard greater
value and a much longer life, enable greater interoperability among WSN
silicon and network stacks, and enable future WSN technologies to leverage
an existing and fully standard MAC.
Dust Networks and 15.4e
The new standard incorporates many of the technology enhancements that
Dust Networks discovered and championed from its earliest days, and has
continued to use right through the newest SmartMesh WH and SmartMesh
IP products. But the new standard was developed not only from Dust’s
technology but also with extensive and enthusiastic contributions from
many major suppliers, notably including Siemens.
Dust now employs its most recent chip design (which conforms to 15.4e) in
both WirelessHART and IPv6 products. Using the latest chipset is a big
benefit for the WirelessHART (industrial) customers, since Dust has driven
down the power consumption of its chipsets by roughly 50 percent with
each new generation. In battery powered industrial devices, this provides
an “energy surplus” ena &Ɩ