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Gi-Fi or gigabit wireless refers to a wireless communication at a data rate of more than one billion bits (gigabit) per second.
By 2004 some trade press used the term "Gi-Fi" to refer to faster versions of the IEEE 802.11 standards marketed under the trademark Wi-Fi
In 2008 researchers at the University of Melbourne demonstrated a transceiver integrated on a single integrated circuit (chip) that operated at 60 GHz on the CMOS process.[2] It will allow wireless transfer of audio and video data at up to 5 gigabits per second, ten times the current maximum wireless transfer rate, at one-tenth the cost. Researchers chose the 57–64 GHz unlicensed frequency band since the millimetre-wave range of the spectrum allowed high component on-chip integration as well as the integration of very small high gain arrays. The available 7 GHz of spectrum results in very high data rates, up to 5 gigabits per second to users within an indoor environment, usually within a range of 10 metres.[2] Some press reports called this "GiFi".It was developed by Melbourne University-based laboratories of NICTA (National ICT Australia Limited), Australia’s Information and Communications Technology Research Centre of Excellence.
In 2009, the Wireless Gigabit Alliance was formed. It used the term "WiGig" which avoided trademark confusion
What is GiFi ?
The full form of GiFi is Gigabit wireless; it is basically a wireless communication at data rate of about one million bits (gigabits) per second. As a wireless technology, GiFi is the first integrated transceiver integrated on one chip that allows transfer of videos and audios at a speed of 5 GB per second. GiFi is known to have ten times the current maximum wireless transfer rate in a range of ten meters. GiFi as a wireless technology has a number of applications can be used in different places and devices that include wireless networks, smartphones, mm-waves and media access control.
Why use GiFi ?
The main reasons for making use of GiFi Wireless technology is due to the high power consumption, low range of frequency operation and slow rates of former technologies that include Wi-Fi and Bluetooth. GiFi as a wireless technology makes use of a very tinyantenna that can be used by mobile devices and it is a great tool for wireless home equipment. GiFi aims at solving the low data rate problems as it has an integrated receiver and transmitter on a single chip. If we make comparison between wireless technology, GiFi, Wi-Fi and Bluetooth, the Gi-Fi provides better data transfer rate with minimum power consumption.
Architecture of GiFi
GiFi wireless technology incorporates one subscriber station that is made available for different access points. It supports IEEE 802.15.3C standard millimeter wave wireless networks that are used majorly for communication between computer devices. The subscriber station basically comprises of a small antenna that is mounted on the top in order to support the light of sight operations. In order to avoid any interference, it transmits multiples signals across the path of transmission, at the same time having different frequencies.
Working of GiFi
Let us use time division duplex for receiving and transmission. The data files are converted to RF 60GHz range by making use of two mixers from an IF range. The output is then stored in a power amplifier, that stores a millimeter wave antenna within. The RF incoming data is first converted to IF signal at 5GHz and then converted to a normal data range. A heterodyne construction is used for this procedure to avoid any leakage because of direct conversion. With the availability of a 7GHz spectrum, the data gets transferred in a matter of seconds.
Main features of GiFi as a Wireless technology
• Better transfer rate
• Low power consumption
• Secure and cost efficient
• Small sized
• Quick positioning
Additional Features of GIFI wireless technology
• GiFi is highly –portable, which makes it very convenient to construct it wherever we need it.
• GiFi installs line of sight operations having a short coverage area, as it offers a versatile architecture.
• Re-use of high frequency levels is enabled which makes it easier to communicate with a wide range of customers within a specific geographic region. Hence, leaving them satisfied.
Applications Of GiFi
• HOUSE HOLD APPLIANCES
• OFFICE APPLIANCES
• Inter vehicle communication
• Tranfer of video signal