15-03-2017, 12:00 PM
GiFi Technology (Gigabit Fidelity)
Gi-Fi is Gigabit wireless technology. It operates in the frequency band 57 GHz to 64 GHz with a bandwidth of approximately 7 GHz. It is developed primarily for high speed data communication applications such as video. The idea came after the development of 802.11b and wimax 802.16e wifi where in the video transfer used to take more time. Gi-Fi technology is based on the IEEE 802.15.3c standard.
Gi-Fi technology is used for short-range data communication at a speed of 5 Gbps over a coverage distance of 10 meters. The complete Gi-Fi transceiver has been designed and developed with a 5 mm square. It houses antenna, transmitter and receiver on a single chip using CMOS technology. The antenna has a dimension of 1 mm in size on the chip.
The following are the important aspects of Gi-Fi on existing WiMAX and mobile WiMAX. These are important differences between these wireless technologies.
• Supports a speed of 5 Gbps that is almost ten times faster than existing technologies.
• It has the lowest power consumption.
• It has a very low cost, which is a tenth comparison with existing technological products.
• As it works in point-to-point mode, it provides very high security.
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 faster versions of the IEEE 802.11 standards marketed under the Wi-Fi trademark. 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.