October 2018
Intermediate to advanced
962 pages
40h 41m
English
Content preview from Industrial Communication Systems
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WirelessHART, ISA100.11a, and OCARI 53-11
53.4.2 MAC Layer
MaCARI [CGM08,LVV08] is the MAC layer specied in OCARI. It supports both time-constrained
communication
and slotted CSMA/CA communication as depicted by Figure 53.11.
e
design
of
MaCARI
is
based
on
a
cross-layering
approach.
It
proposes
a
tree-based
strategy
of
packets
relaying
with
deterministic
activities
schedule
to
reduce
possible
collision.
In
MaCARI,
the
PAN
coordinator
schedules
the
cells
activity
and
xes
the
beacons
broadcasting
sequence.
e
beacon
Management
Device
object
MDO + energy
Public interface
Energy
service
provider
NwCARI
Physical (PHY) layer
2.4 GHz radio
MaCARI
Application ...
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