Gi-Fi will helps to push wireless communications to faster drive. For many years cables ruled the world. Optical fibers played a dominant role for its higher bit rates and faster transmission. But the installation of cables caused a greater difficulty and thus led to wireless access. The foremost of this is Bluetooth which can cover 9-10mts. Wi-Fi followed it having coverage area of 91mts. No doubt, introduction of Wi-Fi wireless networks has proved a revolutionary solution to “last mile” problem. However, the standard’s original limitations for data exchange rate and range, number of channels, high cost of the infrastructure have not yet made it possible for Wi-Fi to become a total threat to cellular networks on the one hand, and hard-wire networks, on the other. But the man’s continuous quest for even better technology despite the substantial advantages of present technologies led to the introduction of new, more up-to-date standards for data exchange rate i.e., Gi-Fi.
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Gi-Fi or Gigabit Wireless is the world’s first transceiver integrated on a single chip that operates at 60GHz on the CMOS process. It will allow wireless transfer of audio and video data up to 5gigabits per second, ten times the current maximum wireless transfer rate, at one-tenth of the cost, usually within a range of 10 meters. It utilizes a 5mm square chip and a 1mm wide antenna burning less than 2watts of power to transmit data wirelessly over short distances, much like Bluetooth.
The development will enable the truly wireless office and home of the future. As the integrated transceiver is extremely small, it can be embedded into devices. The breakthrough will mean the networking of office and home equipment without wires will finally become a reality. In this we present a low cost, low power and high broadband chip, which will be vital in enabling the digital economy of the future.
Wi-Fi (IEEE-802.11b) and Wi-Max (IEEE-802.16e) have captured our attention, as there are no recent developments in the above technologies which cannot transfer data and video information at a faster rate and led to the introduction of Gi-fi technology. It offers some advantages over Wi-Fi, a similar wireless technology, that offers faster information rate in Gbps less power consumption and low cost for short range transmissions.
Gi-Fi or Gigabit Wireless is the world’s first transceiver integrated on a single chip in which a small antenna used and both transmitter- receiver are integrated on a single chip which is fabricated using the complementary metal oxide semiconductor (CMOS) process. Because of Gi-Fi transfer of large videos, files can be done within seconds.
Researchers of Melbourne University has come up with a wireless technology which promises high speed short range data transfers with a speed of up to 5Gbps within a radius of 10 meters. The new wireless technology is named as Gi-Fi and operates on the 60GHz frequency band, which is currently mostly unused. The Gi-Fi Chip developed by the Australian researcher’s measures 5mm square and is manufactured using existing complementary metal-oxide-semiconductor (CMOS) technology, the same system that is currently used to print silicon chips.
The best part about this new technology is its cost effectiveness and power consumption, it consumes only 2watts of power for its operation with antenna (1mm) included and the development of Gi-Fi chip costs approximately $10( Rs 380) to manufacture.
In theory this technology would transfers GB’s of your favorite high definition movies in seconds. So Gi-Fi can be considered as a challenger to Bluetooth rather than Wi-Fi and could find applications ranging from new mobile phones to consumer electronics.
REASONS FOR OPTING GI-FI: The reason for pushing into Gi-Fi technology is because of slow rate, high power consumption, low range of frequency operations of earlier technologies i.e. Bluetooth
Gi-Fi or gigabit wireless is the world’s first transceiver integrated on a single chip that operates at 60GHz on the cmos process. It will allow wirelesss transfer of audio and video data at up to 5gigabits per second, ten times the current maximum wireless transfer rate, at one-tenth the cost. NICTA researchers have chosen to develop this technology in the 57-64GHz unlicensed frequency band as the millimeter-wave range of the spectrum makes possible high component on-chip integration as well as allowing for the integration of very small high gain arrays. The available 7GHz 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 .It satisfies the standards of IEEE 802.15.3C .The Gi-Fi integrated wireless transceiver chip developed at the National ICT Research Centre, Australia
A new silicon chip developed in Melbourne is predicted to revolutionize the way household gadgets like televisions, phones and DVD players talk to each other. The tiny five-millimeter-a-side chip can transmit data through a wireless connection at a breakthrough five gigabits per second over distances of up to 10 meters. An entire high-definition movie could be transmitted to a mobile phone in a few seconds, and the phone could then upload the movie to a home computer or screen at the same speed. The “Gi-Fi” was unveiled today at the Melbourne University-based laboratories of NICTA, the national information and communications technology research centre.
Short-range wireless technology is a hotly contested area, with research teams around the world racing to be the first to launch such a product. Professor Skafiadas said his team was the first to demonstrate a working transceiver-on-a-chip that uses CMOS (complementary metal-oxide-semiconductor) technology – the cheap, ubiquitous technique that prints silicon chips.
This means his team is ahead and stood in front of the competition in terms of price and power demand. His chip uses only a tiny one-millimeter-wide antenna and less than two watts of power, and would cost less than $10 to manufacture.
Chip of Gi-Fi
The chip shown in the above figure uses the 60GHz “millimeter wave” spectrum to transmit the data, which gives an advantage over Wi-Fi (wireless internet). Wi-Fi’s part of the spectrum is increasingly crowded, sharing the waves with devices such as cordless phones, which leads to interference and slower speeds. But the millimeter wave spectrum (30 to 300 GHz) is almost unoccupied, and the new chip is potentially hundreds of times faster than the average home Wi-Fi unit. However, Wi-Fi still benefits from being able to provide wireless coverage over a greater distance
This mmWave WPAN will operate in the new and clear band including 57-64 GHz unlicensed band defined by FCC 47 CFR 15.255. The millimeter-wave WPAN will allow high coexistence (close physical spacing) with all other microwave systems in the 802.15 family of WPANs. Two Technologies that help realize GWLAN are,
Multiple Input Multiple Output (MIMO)
There are many usage scenarios that can be addressed by Gi-Fi. The following are some applications of Gi-Fi .
Gi-Fi access devices:
Gi-Fi access devices
Some of the Gi-Fi access devices are shown in fig.These access devices include termination units, internal radio modules, network interface cards ,printers, PC’s,and all household electronic appliances.
Broadcasting video signal transmission system in sports stadium :
Broadcasting video signals
Easy and immediate construction of temporal broadband network such as in sports stadium for the advertisement of information distribution can be possible as shown in fig
As gi-fi data transfer rate is very high we can transfer data at very high speed in offices as shown in fig 7.0.3 which made work very easy and it also provides high quality of information from the internet.
Video information transfer:
Video information transfer
By using present technologies video swapping takes hours of time where as with this technology as shown in fig 7.0.4 we can transfer data at a speed of giga bits/sec same as that for the transfer of information from a PC to a mobile and vice-versa.
As the integrated transceiver is extremely small, it can be embedded into devices. The breakthrough will mean the networking of office and home equipment without wires will finally become a reality. The Gi-Fi integrated transceiver chip may be launched by the starting of next year by NICTA. Due to the less cost of chip so many companies are coming forward to launch the chip. The potential of mmwave range for ultra fast data exchange has prompted many companies like intel, LG, Panasonic, Samsung, Sony& Toshiba to form wireless HD. Specifically wireless HD has a stated goal of enabling wireless connectivity for streaming high definition content between source devices and high definition devices.
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Within five years, we expect Gi-Fi to be the dominant technology for wireless networking. By that time it will be to provide services with low-cost, high broadband access, and with very high speed large files swapped within seconds which will develop wireless home and office of future. If the success of Wi-Fi and the imminent wide usage of WiMAX is any indication, Gi-Fi potentially can bring wireless broadband to the enterprise in an entirely new way.
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