IoT (Internet Of Things)

 

 

 

Video Link

 

This page collects YouTube videos about IoT and the technologies around it. The links are grouped by topic, from general IoT talks to specific radio technologies such as NB-IoT, LoRa and SIGFOX. Most of them were recorded between 2014 and 2016, so check the date before you rely on a forecast or a product claim.

IoT

These talks cover IoT as a whole, from market forecasts to architecture and protocols. Most of them date from 2014 and 2015, when IoT drew the most attention. So read the forecasts as the expectations of that time. The architecture and protocol lectures, such as the five part Internet of Things series, are still useful as an introduction.

Connected Car

A connected car is a vehicle with its own cellular link, used for telematics, navigation, safety and entertainment services. These videos show how vendors and carriers presented the connected car around 2015 and 2016. For the definitions and the technical side, see the Connected Car Definition page.

M2M

M2M, Machine to Machine, is the older name for devices that talk to servers without a person in the loop. Much of the cellular IoT work in 3GPP developed from M2M. These videos explain the M2M idea and ask whether LTE changes it. For the 3GPP side, see the MTC page.

NB-IoT

NB-IoT is the 3GPP narrowband IoT radio introduced in Release 13. It fits in a 180 kHz carrier, so it can be deployed standalone, in the guard band of an LTE carrier, or in-band inside an LTE carrier. These four panels come from MWC 2016, a few months before the Release 13 NB-IoT specifications were completed.

6LoPAN

This technology, 6LoWPAN in the video title, carries IPv6 packets over low power wireless networks such as IEEE 802.15.4. The main problem is size. An IPv6 header alone is 40 bytes, and an 802.15.4 frame is at most 127 bytes. The seminar below explains the header compression and fragmentation that solve this. See also the 6LoPAN page.

LoRa

LoRa is a long range and low power radio that uses chirp spread spectrum in unlicensed sub-GHz bands. LoRaWAN is the MAC and network protocol that runs on top of it. The talk and the tutorial below show how to send sensor data with LoRa modules. See the LoRa page for more detail.

SIGFOX

SIGFOX is an ultra narrow band LPWAN that Sigfox runs as one network together with its partner operators. Each uplink message carries at most 12 bytes of payload, so it suits small and infrequent sensor reports. The introduction below explains the network model. See also the SigFox page and the LTN pages, because the ETSI LTN work uses the same UNB idea.

Sensor Network

A wireless sensor network is a set of small, battery powered nodes that measure something and pass the data toward a sink, often over several hops. Many IoT techniques, such as mesh routing and duty cycling, come from this field. The lecture below covers the technology and its applications.

Smart Grid

A smart grid adds communication to the power network, so that meters, substations and the utility can exchange data. Smart metering is a large M2M application, and it uses mesh radio, cellular and power line links. The video below compares the wireless options for this space.

IoT Security

Security is harder for IoT than for phones. The devices are cheap, they stay in the field for years, and they often have no user to install updates. The talk below explains how to protect the devices, the networks and the cloud services of an IoT system.

IoT Demo/Devlopment Kit

These videos show development kits and gateways that were available around 2015, mostly from Intel. Intel discontinued Edison and several of its other IoT boards in 2017, so treat these products as history. The setup videos still show the usual steps with any development board: flash the image, connect it, and script the GPIO.

Optical Communication

These talks are about optical links rather than radio. They cover photonic technology for short range data links and space division multiplexing, which carries several data streams over separate modes or cores of one fibre. They sit on this page because the backhaul behind any IoT network runs over fibre.