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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