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Gifi

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Bujji Nithin Chowdary

Gi-Fi is a new wireless technology that offers faster data transfer rates of up to 5 gigabits per second, ten times faster than current WiFi speeds. It utilizes a small chip and antenna to transmit data wirelessly over short distances of around 10 meters, with lower power consumption than WiFi. Gi-Fi integrated the transmitter and receiver onto a single chip using CMOS technology to allow for wireless transfer of large files like videos within seconds. It could enable wireless home networks of the future with high-speed broadband connections and the transfer of large files.

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CHAPTER 1 INTRODUCTION Wi-Fi (ieee-802.11b) and Wi-Max (ieee-802.16e) have captured our attention .As there is no recent developments which transfer data at faster rate. As video information transfer taking lot of time. This leads to introduction of Gi-Fi technology .it offers some advantages over Wi-Fi, a similar wireless technology, in that it offers faster information rate in Gbps, less power consumption and low cost for short range transmissions. Gi-Fi which is developed on a integrated wireless transceiver chip. In which a small antenna used and both transmitter- receiver 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 will be within seconds. It will allow wireless transfer of audio and video data up to 5 gigabits 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 2 watts of power to transmit data wirelessly over short distances, much like Bluetooth. 1 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
CHAPTER 2 REASON FOR PUSHING INTO GI-FI The reason for pushing into Gi-Fi technology is because of i. Slow rate, ii. high power consumption, iii. low range of frequency operations of earlier technologies i.e. Bluetooth and Wi-Fi. see the comparisons and features of those two technologies 2.1 BLUETOOTH VS WI-FI Characteristic Bluetooth Wi-Fi Frequency 2.4GHz 2.4GHz Range 10meters 100meters Primary application WPAN: cable replacement WLAN: Ethernet Data transfer rate 800 Kbps 11 Mbps Power consumption Low Medium Primary devices Notebook computers, Mobile phones, PDAs, consumer desktop computers, electronics servers Primary users Travelling employees, office and Corporate campus users industrial workers Development start date 1998 1990 Specifications authority Bluetooth SIG IEEE, WEGA Table 2.1 Differences of Bluetooth & Wi-Fi 2 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
From table2.1.1 we can conclude that the bit rates of Bluetooth is 800Kbps and Wi-Fi has 11Mbps.Both are having power consumptions 5mw and 10mw .And lower frequency of operation 2.4GHz.For transferring large amount of videos ,audios, data files take hours of time. So to have higher data transfer rate at lower power consumption we move onto Gi-Fi technology 2.2 WHAT IS Gi-Fi? 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 at up to 5 gigabits 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 57-64GHzunlicensed 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 3 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
CHAPTER 3 Architecture Of Gi-Fi The core components of a GI-FI system is the subscriber station which available to several access points It supports standard of IEEE 802.15.3C . An 802.15.3c based system often uses small antenna at the subscriber station. The antenna is mounted on the roof. It supports line of sight operation Fig 3.1 Gigabit wireless: The Gi-Fi integrated wireless transceiver chip. 4 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
3.1 FUNDAMENTAL TECHNOLOGIES IN 802.15.3C This mm Wave 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. Fig: 3.2 Graph between data rate & year 5 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
Chapter 4 Working Of Gi-Fi Here we will use time division duplex for both transmission and receiving. We will data files are up converted from IF range to RF60Ghz range by using 2 mixers. We will fed this to an power amplifier, which feeds millimeter wave antenna. The incoming RF signal is first down converted to an IF signal centered at 5 GHz .and then to normal data ranges, here we will use heterodyne construction for this process to avoid leakages due to direct conversion. Due to availability of 7 GHz spectrum the total data will be will be transferred within seconds 4.1 Factors for Using 60 GHz Here we will use millimeter wave antenna which will operate at 60 GHz frequency which is unlined band .Because of this band we are achieving high data rates energy propagation in the 60 GHz band has unique characteristics that make possible many other benefits such as excellent immunity to co-channel interference, high security, and frequency re- use. Point-to-point wireless systems operating at 60 GHz have been used for many years for satellite-to-satellite communications. This is because of high oxygen absorption at 60 GHz (10-15 dB/Km). This absorption attenuates 60 GHz signals over distance, so that signals cannot travel far beyond their intended recipient. For this reason, 60GHz is an excellent choice for covert communications Fig 4.1 Oxygen Attenuation vs. Frequency 6 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
CHAPTER 5 FEATURES OF Gi-Fi The Gi-Fi standard has been developed with many objectives in mind. These are summarized below: 1. High speed of data transfer: The main invention of Gi-Fi to provide higher bit rate .As the name itself indicates data transfer rate is in Giga bits per second. Speed of Gi-Fi is 5 gbps. This is 10 times the present data transfer. Because of wider availability of continuous 7 Hz spectrum results in high data rates. 2. Low Power Consumption: As the large amount of information transfer it utilizes mill watts of power only. It consumes only 2 mW power for data transfer of gigabits of information. Where as in present technologies it takes 10 mW powers which is very high 3. High Security: Point-to-point wireless systems operating at 60 GHz have been used for many years by the intelligence community for high security communications and by the military for satellite-to satellite communications. The combined effects of O2 absorption and narrow beam spread result in high security and low interference 4. Cost-effective: Gi-Fi is based on an open, international standard. Mass adoption of the standard, and the use of low-cost, mass-produced chipsets, will drive costs down dramatically, and the resultant integrated wireless transreceiver chip which transfers data at high speed low power at low price $10 only. which is very less As compare to present systems .As go on development the price will be decreased. Other features: High level of frequency re-use enabled – communication needs of multiple customers within a small geographic region can be satisfied It is also highly portable-we can construct where ever we want. 7 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
CHAPTER 6 Applications Of Gi-Fi There are many usage scenarios that can be addressed by Gi-Fi. The following are some mobility usage applications of Gi-Fi. 1. In wireless pan networks Fig 6.1 public area networks 8 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
2. Inter-vehicle communication system Fig 6.2. Inter-vehicle communication 3. Broadcasting video signal transmission system in sports stadium Fig 6.3 Broadcasting video signal in sports stadium 9 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
4. mm-Wave video-signals transmission system Fig 6.4 mm-Wave video-signals 5. Ad-hoc information distribution with Point-to-Point network extension Fig 6.5 Ad-hoc information Point-to-Point network extension 10 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
FUTURE ADVANCEMENT Within five years, we expect Gi-Fi to be the dominant technology for wireless networking. By that time it will be fully mobile, as well as providing low-cost, high speed large files swapped within seconds which will develop wireless home and office of future. As the range is limited to shorter distances only we can expect the broad band with same speed and low power consumption. 11 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
CONCLUSION If the success of Wi-Fi and the imminent wide usage of Wi-MAX is any indication, Gi-Fi potentially can bring wireless broadband to the enterprise in an entirely new way. Gi-Fi will be the dominant technology for wireless networking. In future it will be fully mobile, as well as providing low-cost, high speed. 12 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
BIBLIOGRAPHY  http://www.ausairpower.net/gi-fi.html  http://science.howstuffworks.com/gi-fi1.htm  http://www.flymig.com/forum/posts/1077669847.htm  http://www.strategypage.com/6-65301/page6.aspx  http://www.eads.com/1024/en/businet/defence/defence.html#1716 13 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING

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  • 1. CHAPTER 1 INTRODUCTION Wi-Fi (ieee-802.11b) and Wi-Max (ieee-802.16e) have captured our attention .As there is no recent developments which transfer data at faster rate. As video information transfer taking lot of time. This leads to introduction of Gi-Fi technology .it offers some advantages over Wi-Fi, a similar wireless technology, in that it offers faster information rate in Gbps, less power consumption and low cost for short range transmissions. Gi-Fi which is developed on a integrated wireless transceiver chip. In which a small antenna used and both transmitter- receiver 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 will be within seconds. It will allow wireless transfer of audio and video data up to 5 gigabits 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 2 watts of power to transmit data wirelessly over short distances, much like Bluetooth. 1 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 2. CHAPTER 2 REASON FOR PUSHING INTO GI-FI The reason for pushing into Gi-Fi technology is because of i. Slow rate, ii. high power consumption, iii. low range of frequency operations of earlier technologies i.e. Bluetooth and Wi-Fi. see the comparisons and features of those two technologies 2.1 BLUETOOTH VS WI-FI Characteristic Bluetooth Wi-Fi Frequency 2.4GHz 2.4GHz Range 10meters 100meters Primary application WPAN: cable replacement WLAN: Ethernet Data transfer rate 800 Kbps 11 Mbps Power consumption Low Medium Primary devices Notebook computers, Mobile phones, PDAs, consumer desktop computers, electronics servers Primary users Travelling employees, office and Corporate campus users industrial workers Development start date 1998 1990 Specifications authority Bluetooth SIG IEEE, WEGA Table 2.1 Differences of Bluetooth & Wi-Fi 2 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 3. From table2.1.1 we can conclude that the bit rates of Bluetooth is 800Kbps and Wi-Fi has 11Mbps.Both are having power consumptions 5mw and 10mw .And lower frequency of operation 2.4GHz.For transferring large amount of videos ,audios, data files take hours of time. So to have higher data transfer rate at lower power consumption we move onto Gi-Fi technology 2.2 WHAT IS Gi-Fi? 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 at up to 5 gigabits 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 57-64GHzunlicensed 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 3 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 4. CHAPTER 3 Architecture Of Gi-Fi The core components of a GI-FI system is the subscriber station which available to several access points It supports standard of IEEE 802.15.3C . An 802.15.3c based system often uses small antenna at the subscriber station. The antenna is mounted on the roof. It supports line of sight operation Fig 3.1 Gigabit wireless: The Gi-Fi integrated wireless transceiver chip. 4 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 5. 3.1 FUNDAMENTAL TECHNOLOGIES IN 802.15.3C This mm Wave 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. Fig: 3.2 Graph between data rate & year 5 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 6. Chapter 4 Working Of Gi-Fi Here we will use time division duplex for both transmission and receiving. We will data files are up converted from IF range to RF60Ghz range by using 2 mixers. We will fed this to an power amplifier, which feeds millimeter wave antenna. The incoming RF signal is first down converted to an IF signal centered at 5 GHz .and then to normal data ranges, here we will use heterodyne construction for this process to avoid leakages due to direct conversion. Due to availability of 7 GHz spectrum the total data will be will be transferred within seconds 4.1 Factors for Using 60 GHz Here we will use millimeter wave antenna which will operate at 60 GHz frequency which is unlined band .Because of this band we are achieving high data rates energy propagation in the 60 GHz band has unique characteristics that make possible many other benefits such as excellent immunity to co-channel interference, high security, and frequency re- use. Point-to-point wireless systems operating at 60 GHz have been used for many years for satellite-to-satellite communications. This is because of high oxygen absorption at 60 GHz (10-15 dB/Km). This absorption attenuates 60 GHz signals over distance, so that signals cannot travel far beyond their intended recipient. For this reason, 60GHz is an excellent choice for covert communications Fig 4.1 Oxygen Attenuation vs. Frequency 6 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 7. CHAPTER 5 FEATURES OF Gi-Fi The Gi-Fi standard has been developed with many objectives in mind. These are summarized below: 1. High speed of data transfer: The main invention of Gi-Fi to provide higher bit rate .As the name itself indicates data transfer rate is in Giga bits per second. Speed of Gi-Fi is 5 gbps. This is 10 times the present data transfer. Because of wider availability of continuous 7 Hz spectrum results in high data rates. 2. Low Power Consumption: As the large amount of information transfer it utilizes mill watts of power only. It consumes only 2 mW power for data transfer of gigabits of information. Where as in present technologies it takes 10 mW powers which is very high 3. High Security: Point-to-point wireless systems operating at 60 GHz have been used for many years by the intelligence community for high security communications and by the military for satellite-to satellite communications. The combined effects of O2 absorption and narrow beam spread result in high security and low interference 4. Cost-effective: Gi-Fi is based on an open, international standard. Mass adoption of the standard, and the use of low-cost, mass-produced chipsets, will drive costs down dramatically, and the resultant integrated wireless transreceiver chip which transfers data at high speed low power at low price $10 only. which is very less As compare to present systems .As go on development the price will be decreased. Other features: High level of frequency re-use enabled – communication needs of multiple customers within a small geographic region can be satisfied It is also highly portable-we can construct where ever we want. 7 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 8. CHAPTER 6 Applications Of Gi-Fi There are many usage scenarios that can be addressed by Gi-Fi. The following are some mobility usage applications of Gi-Fi. 1. In wireless pan networks Fig 6.1 public area networks 8 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 9. 2. Inter-vehicle communication system Fig 6.2. Inter-vehicle communication 3. Broadcasting video signal transmission system in sports stadium Fig 6.3 Broadcasting video signal in sports stadium 9 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 10. 4. mm-Wave video-signals transmission system Fig 6.4 mm-Wave video-signals 5. Ad-hoc information distribution with Point-to-Point network extension Fig 6.5 Ad-hoc information Point-to-Point network extension 10 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 11. FUTURE ADVANCEMENT Within five years, we expect Gi-Fi to be the dominant technology for wireless networking. By that time it will be fully mobile, as well as providing low-cost, high speed large files swapped within seconds which will develop wireless home and office of future. As the range is limited to shorter distances only we can expect the broad band with same speed and low power consumption. 11 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 12. CONCLUSION If the success of Wi-Fi and the imminent wide usage of Wi-MAX is any indication, Gi-Fi potentially can bring wireless broadband to the enterprise in an entirely new way. Gi-Fi will be the dominant technology for wireless networking. In future it will be fully mobile, as well as providing low-cost, high speed. 12 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING
  • 13. BIBLIOGRAPHY  http://www.ausairpower.net/gi-fi.html  http://science.howstuffworks.com/gi-fi1.htm  http://www.flymig.com/forum/posts/1077669847.htm  http://www.strategypage.com/6-65301/page6.aspx  http://www.eads.com/1024/en/businet/defence/defence.html#1716 13 V.K.R, V.N.B & A.G.K COLLEGE OF ENGINEERING