1665-6423
1665-6423
S1665-64232017000600562
10.1016/j.jart.2017.07.004
Botswana
00
00
2017
00
00
2017
15
6
562
570
[
2015
15
5
5
2514-22
]
[
2013
281-5
]
[
2014
2014
160-7
]
[
2009
9
9
9
6869-96
]
[
2015
217
1-7
]
[
Digi International
2007
]
[
2014
281-90
]
[
1984
38
3
3
104-8
]
[
2009
56
10
10
4258-65
]
[
2012
2012
3661-4
]
[
2010
1
2010
70-5
]
[
2012
2
12
12
187-91
]
[
2011
2011
2072-5
]
[
2009
9
8
8
6411-34
]
[
2014
3
1
1
1-5
]
[
2012
4
1
1
25-30
]
[
2013
2
12
12
3255-60
]
[
2014
14
8
8
2765-72
]
[
2007
46-51
]
[
Libelium
2016
]
[
LoRa Alliance
2015
]
[
LoRa Alliance
2015
]
[
LoRa Alliance
Machina Research
2015
]
[
LoRa Alliance
Technical Marketing Workgroup
2015
]
[
2011
2011
354-7
]
[
2013
2013
1-4
]
[
2007
815-6
]
[
2011
6
2
2
143-51
]
[
2009
9
10
10
14-8
]
[
2012
2012
490-2
]
[
SigFox
]
[
2014
8
6
6
610-6
]
[
2014
3
4
4
399-402
]
[
2015
2015
797-802
]
[
2015
2015
1-4
]
[
2009
2009
1-4
]
[
2012
12
265-72
]
[
2009
2009
330-6
]
[
2011
2011
105-8
]
[
2011
3
1
1
46-63
]
[
2009
2009
546-9
]
[
2010
71
^s1
^s1
1
3-9
]