1.1 THE MOTIVATION FOR PON
One of the most critical decisions for any business involves the purchase of capital equipment. The two important factors which influences this decision are equipment cost and the resulting revenue potential. Service providers face this decision when upgrading existing access networks, and they want to minimize the cost and maximizing the revenue potential. Thus, the most important decision the service provider makes when purchasing network equipment ....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 re ....etc

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Abstract:
IEEE is currently standardizing a new high-speed backbone technology for MANs--Resilient Packet Ring (RPR). A key performance objective of RPR is to achieve high utilization, spatial reuse, and fairness simultaneously. However, the algorithms proposed in current draft standards have some critical limitations. As shown in unbalanced traffic scenario, drafts RPR algorithm will suffer from dramatic bandwidth oscillations within nearly the entire range of the page link capacity. In this paper, we propose a new dynamic ....etc

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i want ppt of differnce between optical &electrical bandwidth.
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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 architec ....etc

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Fundamentals of Passive Optical Network – Components & its Variants


Passive Optical Network
•Passive optical elements (splitter, coupler, …) based optical distribution network
•Special form of FTTC or FTTH
•Physical star, but logical bus
•Cost effective technology for distribution services
•No powering of remote electronics
•Eliminates need for conditioned enclosures
•Transparent to signal formats
•Simplifies future upgrades


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FEBA: A Bandwidth Allocation Algorithm for Service Differentiation in IEEE 802.16 Mesh Networks
Cicconetti, C. Akyildiz, I. F. Lenzini, L.
This paper appears in: Networking, IEEE/ACM Transactions on Publication
Abstract
In wireless mesh networks, the end-to-end throughput of traffic flows depends on the path length, i.e., the higher the number of hops, the lower becomes the throughput. In this paper, a fair end-to-end bandwidth allocation (FEBA) algorithm is introduced to solve this problem. FEBA is implemented at the medium ac ....etc

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Differentiated Bandwidth Allocation with TCP Protection in Core Routers


Abstract

Differentiated Services (DiffServ) networks categorize routers into edge routers and core routers.In core routers, one of the technological challenges is how to implement differentiated bandwidth allocation and TCP protection together with low complexity.We present an Active Queue Management (AQM) scheme called CHOKeW. A method is borrowed from a previous scheme, CHOKe, which draws a packet at random from the buffer, compares it with the arriving packet, a ....etc

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