Table 1 Selected CoT platforms and their...

Table 1

Selected CoT platforms and their main characteristics.

Platform	Integration	Data collection	Security	Analytic type	Energy efficient	Open source
OpenIoT [42]	REST	XGSN	oAUTH 2.0	-	Yes	Yes
Xively [43]	REST	MQTT, Sockets,	SSL/TLS, Keys	RA	No	No
		Websockets	oAUTH 2.0
		HTTP(S)	Password
Nimbits [44]	REST	REST	oAUTH 2.0, Keys	RA	No	Yes
ThingSpeak [45]	REST	HTTP, ZigBee	Keys	Yes	No	Yes
CloudPlugs [46]	REST	PlugNet, MQTT,	PlugNet, SSL	RA	Yes	No
		Websockets
EvryThng [47]	REST	MQTT, CoAP,	TLS, oAUTH 2.0	RA	Yes	No
		Websockets
ThingWrox [48]	REST	REST, MQTT	E-t-E, R	RA, PA	–	No
		Websockets
AWS IoT [49]	REST	HTTP, MQTT,	TSL	BA, PA	Yes	No
		Websockets
MS Azure IoT hub [50]	REST	AMQP, HTTP	oAUTH 2.0, SAS	BA, PA	Yes	No
		MQTT	X.509
		Websockets
KAA IoT [51]	REST	MQTT, HTTP,	TLS, DTLS	BA	Yes	Yes
		XMPP, REST
		CoAP
Oracle IoT [52]	REST	MQTT	E-t-E	RA, PA	Yes	No
SENSEi [53]	REST	COAP	TA, R	RA	Yes	–
		Sockets
		USB, REP
Paraimpu [54]	REST	–	TA	RA	–	No
Particle [55]	REST	COAP	Password	–	–	Yes
			oAUTH 2.0

Platform	Integration	Data collection	Security	Analytic type	Energy efficient	Open source
OpenIoT [42]	REST	XGSN	oAUTH 2.0	-	Yes	Yes
Xively [43]	REST	MQTT, Sockets,	SSL/TLS, Keys	RA	No	No
		Websockets	oAUTH 2.0
		HTTP(S)	Password
Nimbits [44]	REST	REST	oAUTH 2.0, Keys	RA	No	Yes
ThingSpeak [45]	REST	HTTP, ZigBee	Keys	Yes	No	Yes
CloudPlugs [46]	REST	PlugNet, MQTT,	PlugNet, SSL	RA	Yes	No
		Websockets
EvryThng [47]	REST	MQTT, CoAP,	TLS, oAUTH 2.0	RA	Yes	No
		Websockets
ThingWrox [48]	REST	REST, MQTT	E-t-E, R	RA, PA	–	No
		Websockets
AWS IoT [49]	REST	HTTP, MQTT,	TSL	BA, PA	Yes	No
		Websockets
MS Azure IoT hub [50]	REST	AMQP, HTTP	oAUTH 2.0, SAS	BA, PA	Yes	No
		MQTT	X.509
		Websockets
KAA IoT [51]	REST	MQTT, HTTP,	TLS, DTLS	BA	Yes	Yes
		XMPP, REST
		CoAP
Oracle IoT [52]	REST	MQTT	E-t-E	RA, PA	Yes	No
SENSEi [53]	REST	COAP	TA, R	RA	Yes	–
		Sockets
		USB, REP
Paraimpu [54]	REST	–	TA	RA	–	No
Particle [55]	REST	COAP	Password	–	–	Yes
			oAUTH 2.0

REST API: REpresentational State Transfer API; XGSN: An Open-source Middleware for the Web of Things; MQTT: Message Queuing Telemetry Transport; TA: Token-based Authentication; X.509: X.509 Certificate; Password: User/Password Authentication; E-t-E: End-to-End security; R: Roles for permissions. RA: Real-time Analytics; BA: Batch Analytics; PA: Predictive Analytics.

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