Mid-Term Seminar Report
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Transcript of Mid-Term Seminar Report
7/31/2019 Mid-Term Seminar Report
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BY
7/31/2019 Mid-Term Seminar Report
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Introduction A means of getting access to any kind of information
developed from two complementary technologieswireless and fiber.
High-speed multimedia
Aim at combining bandwidth of
optical networks and ubiquity and mobility of
wireless access systems
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• Fiber access system
Wireless access sytem
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F IBER ACCESS T ECHNOLOGY
Aim of fiber access technology
• Provides unprecedented bandwidth
potential
• Reducing complexity and power
consumption
• Improve quality of service
Disadvantages of fiber access technology
• susceptable to physical damage
• expensive
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WIRELESS ACCESS T ECHNOLOGY
Aim of wireless access technology
• low cost and low power consuming systems
• Provides wider range
• secure connectivity
Disadvantages of wireless access technology
• limitations in bandwidth
• Affected by radiations
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SEAMLESS CONVERGENCE OF FIBER AND
WIRELESS ACCESS TECHNOLOGIES
• New technology combining the assets of both
access technology and covering their short
comings
• Aims at providing more bandwidth and wider
range
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Wireless access systems could not provide larger
carrying capacity and fiber access systems
architecture got more complex with increased
number of users , even the cost of construction and
power consumption increased.
Gave rise to need of a technology which could
provide the users with best of both worlds i.e. fiberbased wireless access system.
Improved quality of service (QoS)
Wideband services
Low transmission losses
Use of existing dark fibers
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•
Existing hot-spots are typically supported by Wi-Fi access,a similar architecture is often useful to providecellular services
• This approach is often useful in crowded areassuch as supermarkets, airport concourses and
subway stations where the macro-cellulararchitecture is inadequate.
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Majorly applied in fields where we requirespeed as well as large bandwidth Broad Band Communication And
Access
FFTA
Telepresentations
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Broadband Internet access
Implies instant access to a range of
services that require a combination of • high data rate
• low latency
• high reliability
Serves as a speedy means of access tointernet
Simplify base stations
complexity
E.g. Motorola canopy
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F FTA(FIBER TO THE ANTENNA)
Uses optical connection directly to the antenna
Provides flexibility for radio air interfaces
Reduced complexity of base station
Immunity to lightning strikes/electric discharges
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TELEPRESENTATION
A presentation in which
the presenter and/or some of
the audience members are not
Physically present but telepresent
Used for training, product introductions,and general information meetings
Major forms: live net shows, videoteleconferencing, video telephony
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Improved the quality of service (QoS) and
immunity to low line losses
Large Bandwidth
Economical and high speed system
Low Maintenance
Flexibility
Transparency
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HIGHLY IMMUNE TO NOISE
40db loss in optical to electrical and
electrical to optical conversion.
SIGNAL LOSSES
Due to impedance mismatch
EXPENSIVE
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Fiber based wireless access systems supporthigh-speed multimedia in real-time bycombining the capacity of optical fiber with theflexibility of wireless networks
The integration of optical and wireless systemsis considered to be one of the most promisingsolutions for increasing the existing capacityand mobility as well as decreasing the costs in
next-generation optical access systems.
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REFERENCES
On the design of optical fiber based wireless accesssystemsFernando, X.N.; Anpalagan, A PublicationYear: 2004 , Page(s): 3550 - 3555 Vol.6
H. Ohtsuka, R. Ohmoto, T. Shimizu, and H. Arai “ optic
wireless access systems,” in Proc. MWE’95, 1995, pp.424 –429.
H. Ohtsuka, R. Ohmoto, T. Shimizu, and H. Arai,“Potential SEFA technology in fiber -oriented wirelessaccess systems,” in Proc. GLOBECOM’96, 1996, vol.
40b.4, pp. 1629 –1633
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T HANK YOU!!!!