Forum: Analoge Elektronik und Schaltungstechnik IoT applications of common wireless communication technologies


von Jeromemark (jeromemark)



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Recently, wireless communication technology has become an integral part 
of various communication devices because it allows users to communicate 
even in remote areas. Devices used for wireless communication include 
wireless telephones, cell phones, GPS units, ZigBee technology, wireless 
computer components, and satellite television. Wireless communication 
technologies are classified into different types according to 
communication distance, data range and transmission distance. The type 
of device used. Following are the different types of wireless 
communication technologies.


Radio Communication Technology:

Radio communication was one of the first wireless technologies developed 
and still in use. Portable multi-channel radios allow users to 
communicate over short distances, while citizen-band and maritime radios 
provide truckers and sailors with long-range communication services.

radio transmission

Most radios broadcast sound through the air in the form of radio waves. 
A radio has a transmitter that transmits data in the form of radio 
signals to a receiver antenna.

A broadcast public program station is associated with the radio network. 
Broadcasting happens in simulcast or syndication or both. Radio 
broadcasts are available via cable FM and long-range satellites up to 2 
Mbit/s.
Lora wireless communication technology

LoRa is a long-distance wireless transmission technology based on spread 
spectrum technology. It is actually one of many LPWAN communication 
technologies. It was first adopted and promoted by Semtech in the United 
States. This solution provides users with a simple means of realizing 
long-distance, low-power wireless communication. At present, LoRa 
wireless technology mainly operates in the ISM frequency band, mainly 
including 433, 868, 915 MHz, etc.

The advantage of LoRa modules is their long-range capability in terms of 
technology. A single gateway or base station can cover an entire city or 
hundreds of square kilometers. In a given location, the distance is 
highly dependent on the environment or obstacles, but LoRa® and LoRaWAN™ 
have a link budget that is superior to any other standardized 
communication technology. Link budget, usually expressed in decibels 
(dB), is the primary factor in determining distance in a given 
environment.
satellite communication technology

Satellite communication technology is a wireless technology of great 
significance on a global scale. They have been widely used in special 
cases. These devices use satellite technology to communicate directly 
with orbiting satellites via radio signals. This allows users to stay 
connected from virtually anywhere on the planet. Portable satellite 
phones and modems have more powerful broadcast capabilities and 
receiving hardware than cellular devices due to their increased range.

satellite communication technology

Satellite communication consists of space segment and ground segment. 
When the signal is sent through the device to the satellite, the 
satellite amplifies the signal and sends it back to a receiving antenna 
located on the Earth's surface. The ground segment consists of the 
transmitter, receiver and the space segment (ie the satellite itself).
WiFi wireless communication technology

WiFi is a low-cost wireless communication technology. A WiFi setup 
consists of a wireless router that serves as a communication hub, 
connecting portable devices with an internet connection. This network 
helps to connect many devices depending on the router configuration. Due 
to low power transmission, these networks have limited range, allowing 
users to connect only when they are nearby.

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