Wireless
Telecommunication Network-Gi Fi
The computer networks are the core of modern communication.
All aspects of the public switched telephone network (PSTN) are control by
computer. Telephony runs over the Internet Protocol. The scope of communication
has increased significantly in the past decade [1]. This boom in communications
would not have been possible without the progressively advancing computer
network. Computer networks, and the technologies that make communication
between networked computers possible, continue to drive computer hardware,
software, and peripherals industries. The expansion of related industries is
mirrored by growth in the numbers and types of people using networks, from the
researcher to the home user. A wireless network is any type of computer network
that uses wireless data connections for connecting network nodes. Wireless
networking is a method by which homes, telecommunications networks and
enterprise installations avoid the costly process of introducing cables into a
building, or as a connection between various equipment locations. Wireless
telecommunications networks are generally implemented and administered using
radio communication. This implementation takes place at the physical level of
the OSI model network structure. Wireless is a more modern alternative to traditional
wired networking that relies on cables to connect networkable devices together.
Wireless technologies are widely used in both home and business computer
networks. Various examples of wireless networks include cell phone networks,
Wi-Fi local networks and terrestrial microwave networks. In this topic I
introduced wireless telecommunication network “GiFi”. 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.
Keywords – wireless, computer, PSTN, GiFi, bandwidth, IEEE
802.15.3C.
I. INTRODUCTION
In recent years, the wireless technology has changed very
fast. The main reason behind this is the need for better bandwidth and data
rates.
GiFi or Gigabit Wireless is the world's first transceiver
integrated on a single chip that operates at 60GHz on the CMOS process.
GiFi allows wireless transfer of audio and video data up to 5 gigabits per second.
GiFi is ten times the current maximum wireless transfer rate
usually within a range of 10 meters.
It transmits multiple signals simultaneously across the
wireless transmission paths within separate frequencies to avoid interference.
A. NEED OF GIFI TECHNOLOGY
- Slow data transfer rate of Wi-Fi Technology
- High power consumption of Wi-Fi Technology
- Low range of frequency operation in existing Wi-Fi Technology.
B. WORKING OF GIFI TECHNOLOGY:
Time division duplex is implemented for both transmission
and receiving. Data files are exchanged by converting IF range to RF60Ghz range
using two mixers. This Signal will fed to power amplifier, which feeds
millimeter wave antenna.
The incoming RF signal[7] is first down converted to an
IF signal centered at 5 GHz and then to
normal data ranges, here heterodyne construction is used for this process to
avoid leakages due to direct conversion. Due to availability of 7 GHz spectrum,
the total data will be transferred within seconds
When it transfers the data over short distance like
Bluetooth, it uses 5mm Squire Chip and 1mm wide antenna and consumes only
2mwatts of power.
II. NETWORK EVOLUTION
Figure: Network Evolution
III. ARCHITECTURE
It has one subscriber station available to several access
points. It has IEEE
802.15.3C [2] standard that support millimeter wave wireless pan networks.
This PAN network [6] is used for the communication among computer devices. This
subscriber station has small antenna mounted on roof supporting Light of Sight
operation. To avoid interference, it transmits multiple signals across
transmission path. It transmits these signals simultaneously having separate
frequencies.
IV. FUNDAMENTAL TECHNOLOGIES IN 802.15.3C
- It transmits multiple signals simultaneously across the wireless transmission paths within separate frequencies to avoid interference. It uses ultra wide band which consists of:
- High bit rate[3]
- High security
- Faster data transmission
IV. FEATURES:
It has solution for the problems present in Bluetooth and
Wi-Fi. There are some features of GiFi that make its standard. The following
features are as follows:
- Better Transfer Rates: This technology provides data transfer rates of Gigabits per second (5Gbps) which is 10 times of present data transfer rates. With this speed, we can transfer HD video, audio files in seconds rather than time taken by other technologies.
- Low Power Consumption: very low power consumption of 2mwatts in comparison to present technologies like Bluetooth, Wi-Fi, WiMax that uses 5mwatts to 10mwatt power.
- Security and Cost Effective: Its IEEE 802.15.3C standard provides great security with link level and service level security. About its cost, it uses low-cost as mass-production of chipsets.
- Size and Coverage: it uses 5mm Square Chip and 1mm wide antenna. That is too small and can be integrated in mobile devices. Thus it provides highly portable, high mobility and better coverage area.
V. COMPARISON BETWEEN
BLUETOOTH, WI-FI &GiFi
- GiFi Access Devices
- Broadcasting Video Signal Transmission System in Sports Stadium[5]
- Office Appliances
- Video Information Transfer
- Inter Vehicle Communication System
- Data transfer rate is higher (5 gbps)
- Power consumption is lower than Bluetooth and Wi-Fi
- Frequency operation range is high (60 GHz)
- This technology is Compatible with IEEE 802.1.15.3c.
VIII. CONCLUSION
GiFi provides better transfer rates and consumes less power.
Its antenna is very small in size so can be implementing in mobile devices.
With GiFi, the audio and video can be transfer within seconds. With its IEEE
802.15.3C standard, the link level and service level security can be provided.
It uses millimeter wave wireless pan networks that implement the communication
among Computer devices. . The comparison that is performed between GiFi and
existing wireless technologies in this paper shows that these features along
with some other benefits such as Low-cost chip, No Frequency Interference, Low
Power Consumption and High Security that are explained in detail in this paper,
makes it suitable to replace the existing wireless technologies for data
transmission between devices that are placed in the short distances from each other.
REFERENCES:
[2] Zhanping
Yin and Victor C.M. Leung Electrical and Computer Engineering University of
British Columbia E-mail: {zhanping; vleung}@ece.ubc.ca
[4] LOUTFI
NUAYMI, WiMAX technology Broadband wireless access
[5] Jesus
Martinez, Barbero Eugenio. Santos Menéndez, Abraham Gutierrez Rodríguez, Data
Transmission for Major Sporting Events on MPEG-2
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