Essay On Wireless Communication

1366 Words6 Pages
The term “Wireless communication” was introduced in the 19th century and this technology has been developed over the subsequent years. It all began when Marconi succeeded in transmitting radio transmissions over the Atlantic and today every part of the world is within one’s reach. Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor. It is one of the most important mediums of transmission of information from one device to other devices. This technology reduces the requirement of any cables or wires for transmission of information. The messages can be transmitted through air by using electromagnetic waves like IR, RF, and Microwaves etc. They are present everywhere…show more content…
The information or data can be transmitted using two methods. One is satellite method and another one is terrestrial method. In Satellite method, the data can be transmitted though a satellite. Stations on the earth send and receive data signals from the satellite with a frequency ranging from 11GHz-14GHz and with a transmission speed of 1Mbps to 10Mbps. In Terrestrial method, two microwave towers with a clear line of sight between them are used, ensuring no obstacles to disrupt the line of sight. It is used often for the purpose of privacy. The frequency range of the terrestrial system is typically 4GHz-6GHz and with a transmission speed is usually 1Mbps to 10Mbps.The main disadvantage of microwave signals is that they can be affected by bad weather, especially rain. Bluetooth Technology Bluetooth is a type of short range radio communication and networking protocol combined. The main function of the Bluetooth technology is that it permits you to connect a various electronic devices wirelessly to a system for the transferring of data. Cell phones are connected to hands free earphones, mouse, wireless keyboard by using Bluetooth device the information from one device to another device. This technology has various functions and it is used commonly in the wireless communication market. It is used to transfer data between devices which are wuthun range of around 10 meters of each
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