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to get information about the topic pon topologies full report ppt and related topic refer the page link bellow

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There are several topologies suitable for the access network: tree, ring, or bus. A PON can also be deployed in redundant configuration as double ring or doubletree; or redundancy may be added only to a part of the PON, say the trunk of the tree. For the rest of this article, we will focus our attention on the tree topology; however, most of the conclusions made are equally relevant to other topologies

All transmissions in a PON are performed between Optical Line Terminal (OLT) and Optical Network Units (ONU). Therefore, in the downstream d ....etc

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Abstract
A Gigabit Ethernet passive optical network (GE-PON)
The GE-PON includes an optical line terminal (OLT), a plurality of optical couplers, and a plurality of optical network units (ONUs). The OLT sets up an active page link and a standby page link in response to a registration request message received over an optical cable. Each of the ONUs is doubly connected with the OLT via the optical cable and is adapted to transmit the registration request message to the OLT, form the active page link with the OLT via the optical cable if it rec ....etc

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myself SATYA PRAKASH persuing B.E from vtu university,karnataka
its my 4th year and 8th semester so for i need to do a seminar for which i selected my topic as PON Topology
so please send me full seminar report and ppt for this topic ....etc

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ABSTRACT
PON-based access networks envisage the demonstration of scalability to allow gradual deployment of time and
wavelength multiplexed architectures in a single-platform without changes in fibre infrastructure and also
highly-efficient bandwidth allocation for service provision and upgrade on-demand. This is achieved by the
application of coarse-fine grooming to route reflective-ONUs of time and wavelength PONs collectively and the
development of MAC protocols enabling the OLT to dynamically assign available time slots among ON ....etc

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PON technology



attenuation per unit length
-reasons for energy loss
-copper: resistance, skin effect, radiation, coupling
-fiber: internal scattering, imperfect total internal reflection
.so fiber beats coax by about 2 orders of magnitude
-e.g. 10 dB/km for thin coax at 50MHz, 0.15 dB/km l =1550nm fiber

Access network bottleneck

.local area networks
use copper cable
get high datarates over short distances
.core networks
use fiber optics
g ....etc

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Abstract:
A passive optical network (PON) is a point-to-multipoint, fiber to the premises network architecture in which unpowered optical splitters utilizing Brewster's angle principles are used to enable a single optical fiber to serve multiple premises, typically 32-128. A PON consists of an optical line terminal (OLT) at the service provider's central office and a number of optical network units (ONUs) near end users. A PON configuration reduces the amount of fiber and central office equipment required compared with point to point architect ....etc

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To get more information about the topic pon topologies please refer the page link below

http://seminarsprojects.net/Thread-pon-topologies--1856

http://seminarsprojects.net/Thread-pon-topologies-for-dynamic-optical-access-networks ....etc

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opnet pon pdf

Project 1: Implementation and Evaluation of High Speed TCP Variants in OPNET

In recent years, bandwidth of the Internet has been increased significantly. Especially, with the emerging long-reach passive optical network , the last-mile problem will be solved, high speed Internet access can be provided from end to end, and BDP experienced by a TCP connection becomes huge. Based on these observations, many high speed TCP variants have been proposed, such as Cubic TCP, H-TCP, Fast TCP , and Compound TCP . While many of these proposa ....etc

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