<s>
Time	B-Device
Slotted	I-Device
Channel	I-Device
Hopping	I-Device
or	O
Time	O
Synchronized	O
Channel	O
Hopping	O
(	O
TSCH	O
)	O
is	O
a	O
channel	O
access	O
method	O
for	O
shared-medium	B-Protocol
networks	I-Protocol
.	O
</s>
<s>
It	O
is	O
designed	O
for	O
low-power	O
and	O
lossy	O
networks	O
(	O
LLNs	O
)	O
and	O
aims	O
at	O
providing	O
a	O
reliable	O
Media	B-Protocol
access	I-Protocol
control	I-Protocol
layer	O
.	O
</s>
<s>
The	O
TSCH	O
mode	O
was	O
introduced	O
in	O
2012	O
as	O
an	O
amendment	O
(	O
IEEE	O
802.15.4e	O
)	O
to	O
the	O
Medium	B-Protocol
Access	I-Protocol
Control	I-Protocol
(	O
MAC	O
)	O
portion	O
of	O
the	O
IEEE	O
802.15.4	O
standard	O
.	O
</s>
<s>
Due	O
to	O
its	O
low	O
power	O
consumption	O
and	O
reliability	O
,	O
TSCH	O
(	O
or	O
its	O
previous	O
versions	O
)	O
is	O
mainly	O
used	O
in	O
Low-Power	O
Wireless	B-Architecture
Sensor	I-Architecture
Networks	I-Architecture
.	O
</s>
