19-04-2017, 12:24 PM
Gi-Fi or wireless gigabit refers to wireless communication at a data rate of more than one billion gigabit bits per second.
In 2004, some newspaper companies used the term "Gi-Fi" to refer to the faster versions of the IEEE 802.11 standards marketed under the Wi-Fi brand.
In 2008, researchers at the University of Melbourne demonstrated a transceiver integrated into a single integrated circuit (chip) operating at 60 GHz in the CMOS process. It will enable wireless transfer of audio and video data to a maximum of 5 gigabits per second, ten times the current maximum wireless transfer rate, at one tenth of the cost. The researchers chose the 57-64 GHz unlicensed frequency band as the millimeter wave range of the spectrum allowed the integration of high-chip components as well as the integration of very small high-gain arrays. The available 7 GHz spectrum results in very high data rates, up to 5 gigabits per second to users within an indoor environment, typically within a range of 10 meters. Some press reports called this "GiFi". It was developed by the laboratories of the University of Melbourne of NICTA (National ICT Australia Limited), Center of Excellence in Research in Information Technology and Communications of Australia.
In 2009, the Wireless Gigabit Alliance was formed. He used the term "WiGig" which avoided the confusion of the trademark.
Advantages:
Fast, up to 7 Gbps.
Disadvantages:
Limited to about 10 meters away, almost line of sight