Internet of things: IoT | Protocols

Protocol framework:

D2D (device to device):DDS: Data Distribution Service| A fast bus for integrating intelligent machines. Device and intelligent systems.

D2S (device to server): Control plane |
        MQTT:Message Queue Telemetry Transport | Protocol for collecting device data and communicating to server.
        XMPP: Extensible Messaging and Presence Protocol | Protocal connecting devices to people

S2S: AMQP: Advanced Message Queuing Protocol | A queuing system designed to connect servers to each other: Web services and business app

List of protocols:

• DDS
• MQTT: Paho
• Low battery consumption
• TCP based
• SSL/TLS
• Async
• Publish/subscribe
• Few verbs
• Payload agnostic
• QoS
• at most once
• at least once
• exactly once
• XMPP
• AMQP
• Queue based
• Messaging server based: fits into Enterprise application
• Load balancing on queues
• MQTT like publish/subscribe queue
• Filter based routing
• MQTT like QoS
• SSL/TLS
• smal packet size
• CoAP
• UDP based
• HTTP verbs, HTTP like status
• Response back after a while
• QoS with confirmable message
• DTLS
• Routing
• HTTP
• More battery
• More bandwidth
• no QoS
• SSL/TLS
• Request/resposne
• One to one 
• One to many
• no MOM
• STOMP

Communication patterns

• Telemetry: info from device to other systems
• Inquiry: information gathering
• Commands: initiate activity
• Notification: info from other systems

http://www.slideshare.net/paolopat/io-t-protocols-landscape?related=1
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