Deep Insight into IoT-Enabled Agriculture and Network Protocols

Table 4

Comparison of CN protocols [64].

Features	MQTT	AMQP	HTTP	HTTP+Nabto	CoAP	CoAP+Nabto	Citations
Transport	TCP	TCP	TCP	TCP + UDP	UDP	UDP	[64, 65]
Low latency	✓	✗	✓	✓	✓	✓	[64–66]
Messaging type	Async	Sync	Sync	Sync	Sync	Sync	[65]
Lightweight	✓	✗	✗	—	✗	—	[64, 65]
Build-in security	✗	✗	✗	✓	—	✓
Easy to build on	✗	✗	✓	✓	✓	✓	[65]
Encrypted	✗	—	✗	✓	✗	✓	[65]