IoT

D2D Operator Controlled D2D Communication and Challenges: Overview: Different from traditional device-to-device communication technologies such as Bluetooth and WiFi-direct, the operator controls the communication process to provide better user experience and make profit accordingly Up to now, D2D is not in 3GPP, because the D2D function was only envisioned as a tool to reduce the cost of local service provision, which is fractional according to the operators’ current market statistics. However it is changing for several new market trends: Context-aware applications as value added services provided by Operator Cell Phone of a owner can be the hub for consumer electronic devices to connect to their networks; D2D from these devices to Cell Phone Disadvantages of traditional D2D technologies like Bluetooth and WiFi-direct (although they are free) compared to Operator controlled cellular network: Require manual pairing Interference is uncontrollable on the crowded

NB-IoT References: 1.  https://www.link-labs.com/blog/overview-of-narrowband-iot 2.  https://arxiv.org/ftp/arxiv/papers/1606/1606.04171.pdf 3.  https://cdn.rohde-schwarz.com/pws/dl_downloads/dl_application/application_notes/1ma266/1MA266_0e_NB_IoT.pdf 4.  https://www.slideshare.net/veermalik121/cellular-narrow-band-iot-iot-using-lte-technology 5.  https://www.ietf.org/proceedings/96/slides/slides-96-lpwan-7.pdf 6.  http://www.sharetechnote.com/html/Handbook_LTE_NB_CIoT_EpsOptimization.html

API Management: Application Registration: User/Application Authorization/Authentication and Service: References: 1.  https://www.digitalocean.com/community/tutorials/an-introduction-to-oauth-2 2.  https://www.youtube.com/watch?v=CPbvxxslDTU  - OAuth 2.0: An Overview (InterSystems Learning Services) 3.  https://www.youtube.com/watch?v=1ZX7554l8hY  - OAuth Grant Types (Oracle Learning Library) 4.  http://tutorials.jenkov.com/oauth2/index.html 5.  https://aaronparecki.com/oauth-2-simplified/ 6.  https://tools.ietf.org/html/draft-ietf-oauth-device-flow-06 7.  https://tools.ietf.org/html/rfc6749 8.  https://tools.ietf.org/html/draft-ietf-oauth-v2-23 9.  https://www.ibm.com/blogs/internet-of-things/edge-iot-analytics/ 10.  https://gaynwinters.wordpress.com/tag/user-agent-based-application/ 11.  https://medium.com/@robert.broeckelmann/when-to-use-which-oauth2-grants-and-oidc-flows-ec6a5c00d864

IoT Mindmap:

IoT Use Cases: IoT Public: Smart Metering:  Smart metering helps saves manpower by remotely collecting electricity, water and gas meter data over the cellular network. Alarms & Event Detectors: Detected home intrusion,  fire outbreak like a sudden increase in home temperature or smoke. Very low data throughput and battery life of the devices will be ultra critical. Smart Garbage Bins:  Garbage bins in city are not built by demand, and most of time the collecting trucks routes and schedule are fixed which is not optimal for a smooth collection. Smart garbage cans can signal to the waste management agent when the garbage can is full and in need of service, the best collection route will be calculated and delivered to the drivers. Historical collection data can provide optimized routes and guide on the right-size garbage can for each location. Charging for this service can be done on sensor amount or on monthly fee basis. IoT Industry: Logistics Tracking: Tracking of s

Wireless IoT Network Protocols:  LTE-M: It is part of the 1.4MHz block. LTE-M is more energy efficient because of its extended discontinuous repetition cycle ( eDRX ), which means the endpoint can communicate with the tower or the network on how often it will wake up to listen for the downlink. This can be anywhere from 10s to 40 minutes or more. While LTE-M1 allows you to go up to really high data rates, you can also benefit from new architectures like LTE eDRX and PSM , which can help you benefit from the same power budget that NB-IoT or SigFox benefit from. NB-IoT: Works on a 200kHz band (Standalone - unused GSM band or otherwise; LTE Gaurd Band, LTE In Band). It has 20dB better coverage than LTE ( 164dB Max Coupling Loss ), Low cost (<$5), Long Battery Life (> 10 years); bi-directional data rates of 300bps to 200kbps for small bursts of packet delivery. SigFox: Works in ISM bands (Industrial, Scientific and Medical (ISM) radio bands) - which in the US