The IoT technology stack could be split into Applications and Analysis, Services (including cloud), connectivity such as Internet Communication Protocols (e.g. TCP/IP, MQTT etc) as well as the term of "things". The latest includes Robotics, Sensors, Metering technology, Smart technology (e.g. watches), Cameras, Mobile Phones and others.

As for the tellecommunication part I agree with all the aforementioned plus the fact of advanced radio techniques such as OFDM, Angle of Arrival Techniques in order to properly estimate the correct signal source as well as advanced software algorithms specialized for each application.

Signal and Radio Communications technologies side by side with MIMO Antennas, sensors, software engineering and web applications.

LBE, LORA sigfox, rfid, LTE, for communication technology, SDN, SSL, fog and edge computing, Industrial 4.0, M2M, all the used technlogies are depended on the application domain

The IoT technology stack could be split into Applications and Analysis, Services (including cloud), connectivity such as Internet Communication Protocols (e.g. TCP/IP, MQTT etc) as well as the term of "things". The latest includes Robotics, Sensors, Metering technology, Smart technology (e.g. watches), Cameras, Mobile Phones and others.

As for the tellecommunication part I agree with all the aforementioned plus the fact of advanced radio techniques such as OFDM, Angle of Arrival Techniques in order to properly estimate the correct signal source as well as advanced software algorithms specialized for each application.

RFID,Smart technologies,Nanotechnologies,Machinelearning,knowledge base are enabling technolgies for IoT.

The secret of technology lies in so-called machine learning. The term refers to a series of mechanisms by which equipment and software can improve their behavior, efficiency and functioning over time from the interaction with the user. An example of this technique in action would be a smart thermostat, responsible for controlling the temperature of a home. After some time of use, the device could have an accurate map of the habits of the residents, preferred temperatures, the times in which they are chosen and in which rooms to act, for example. From the moment he mastered all these routines, the thermostat could act autonomously. This same kind of dynamic could be repeated in any device compatible with the technology: refrigerators, TVs, washing machine, vacuum cleaner and dishwasher.

In addition to technologies mentioned, I would expect to see IPv6 and I would expect to see link layers such as IEEE 802.11 (WiFi) and various forms of IEEE 802.15. IoT should have very broad scope of use cases, so any number of technologies might be in play. For small, battery operated devices, though, you will want a link layer that is particuarly frugal, so that's why 802.15 would often be in the game. Also, there is a lot of talk of cellular 5G playing a big role in IoT.

In some cases, you might see local IoT devices interfacing with a local gateway, over IEEE 802.15 perhaps, then that local gateway communicating with the router to the WAN, over IEEE 802.11. In other cases, the local devices would go directly to the WAN, over 802.11. The most recent advances to investigate should include anything related to 5G.

Presence of MIMO, OFDM, FBMC, or other modulation standards, would be part of that link layer (and "radio layer" or physical layer) choice, of course.

Wireless Sensor Networks (WSN)

Radio Frequency Identification (FRID)

Machine to Machine (M2M)

Please do not foget automation protocols used in industry (Modbus, BacNet, etc). They are, and will continue to be, a relevant part of IoT.

Here :

10.1109/COMST.2015.2444095