Ubiquitous Bluetooth and PAN - Personal Area Network

[Michigan Swamp Buck]

I've just recently been studying and playing with Bluetooth. Basically it's a form of WiFi with a limited range (about 30 feet in most situations). Many people use it primarily for wireless ear buds and speakers, but pretty much all smart devices use it for different purposes. It's low powered, narrow band, and encrypted. Check out the link below for an idea of what devices use it.

https://www.bestproducts.com/latest-blue...echnology/

Below is from 2018 . . .

The BLE (Bluetooth Low Energy) technology is evolving as a scalable low-power wireless networking technology. This development is expected to unlock lucrative growth opportunities in home automation, lighting, building automation, beacons, retail, and location-based applications. Factors such as security and privacy concerns and weak data streaming capabilities are anticipated to challenge market growth over the forecast period. However, improved Internet Protocol (IP) connectivity, speed, and privacy are expected to address these challenges.

https://www.grandviewresearch.com/indust...ady-market

Alexa can pair with Bluetooth devices along with smart phones, TVs, light bulbs, refrigerators, security locks, and computers like in your automobile. Then there is Verizon and T-Mobile's desire since at least 2016 to occupy the unlicensed WiFi frequencies that Bluetooth uses.

LTE in Unlicensed spectrum (LTE-U)

LTE-U would allow cellphone carriers to boost coverage in their cellular networks, by using the unlicensed 5 GHz band already populated by Wi-Fi devices. T-Mobile and Verizon Wireless have indicated early interest in deploying such a system as soon as 2016.[3] While cell providers ordinarily rely on the radio spectrum to which they have exclusive licenses, LTE-U would share space with Wi-Fi equipment already inhabiting that band – smartphones, laptops and tablets connecting to home broadband networks, free hotspots provided by businesses, and so on.

https://en.wikipedia.org/wiki/LTE_in_unl...d_spectrum

All this is starting to sound a lot like an X-files episode I saw.

The X-Files "Rm9sbG93ZXJz"
Episode aired Feb 28, 2018

In a world of ever-increasing automation and artificial intelligence, Mulder and Scully find themselves targets in a deadly game of cat and mouse.

https://www.imdb.com/title/tt6803124/

https://en.wikipedia.org/wiki/Rm9sbG93ZXJz