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13-10-2017, 05:33 PM

hi.. i am student of engineering i would like to get details on wireless communication textbook by mullet PDF free download

jaseela123d · 24-10-2017, 10:10 AM

Wireless or sometimes wireless communication is the transfer of information or energy between two or more points that are not connected by an electric conductor. The most common wireless technologies use radio waves. With radio waves the distances can be short, such as a few meters for Bluetooth or even millions of kilometers for radio communications in deep space. It covers various types of fixed, mobile and portable applications, including two-way radios, cell phones, personal digital assistants (PDAs) and wireless networks. Other examples of radio wireless technology applications include GPS units, garage door openers, wireless computer mice, keyboards and headphones, headphones, radio receivers, satellite television, open television and cordless telephones.

Some less common methods for achieving wireless communications include the use of other electromagnetic wireless technologies, such as light, magnetic or electric fields, or the use of sound. The term wireless has been used twice in the communications history, with a slightly different meaning. Initially it was used from approximately 1890 for the first radio transmitting and receiving technology, such as wireless telegraphy, until the new word radio replaced it around 1920. The term was revived in the 1980s and 1990s primarily to distinguish digital devices that communicate wirelessly. like the examples listed in the previous paragraph, of those requiring cables or wires. This became its main use in the 2000s, due to the emergence of technologies such as LTE, LTE-Advanced, Wi-Fi and Bluetooth.

Wireless operations allow services, such as long range communications, that are impossible or impractical to implement with the use of cables. The term is commonly used in the telecommunications industry to refer to telecommunication systems (eg radio transmitters and receivers, remote controls, etc.) that use some form of energy (eg, radio waves, acoustic energy) to transfer information without the use of cables. The information is transferred in this way over short and long distances.

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