The Evolution of Wireless Networks

The Evolution of Wireless Networks

Over the years wireless signals have advanced from theoretical observations to a readily applied science that plays a major role in many aspects of modern life. Wireless communication became possible thanks to the discovery of radio waves in 1880, which led to the first demonstration of telegraphic communication in England. In 1901, operators transmitted a short wireless signal between Canada and Britain, the first long distance wireless transmission. Afterwards, Edwin Armstrong discovered the portable radio, FM frequencies, and the uber regenerative receiver, all of which helped lay the framework for future developments in the field.

As technology continued to develop, in 1970, professor Norman Abramson created Alohanet, the forerunner for Ethernet and future wireless signals. His invention made use of radio signals for easier data transmission through high-speed packets. Later, in 1979, the first commercial analog cell phone system became available in Japan. Over the course of the next several years, numerous cellular telephone developments rose in various countries, each striving to build on the technology of its predecessor. In 2000, Korea launched the world’s first 3G commercial system for widespread use, and it was not until 2009 that the 4G system became widely available. This latest development also established a variety of hardware changes that would help combat 2.4 GHZ crowding, ensuring that more bandwidth became available. Experts speculate on the future developments of wireless networks, and many predict that such systems will continue being made more accessible for all users.

To learn more about the evolution of wireless networks, check out the infographic below created by the New Jersey Institute of Technology’s online Master of Science in Electrical Engineering program.


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New Jersey Institute of Technology’s Online Master of Science in Electrical Engineering