This article is presented by:
H. Erkan, ASM D.
Hossain, R. Dorsinville,
M.A.Ali A. Hadjiantonis


Abstract
This work proposes a simple and cost effective local access WDM-PON architecture that combines the salient features of both traditional static WDM-PON (i.e., dedicated connectivity to all subscribers with bit rate and protocol transparencies, guaranteed QoS, and increased security) and dynamic WDM-PON (i.e., efficiently utilizing network resources via dynamic wavelength allocation/sharing among end-users) ....etc

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Advanced technologies for 4G: Mobile broadband multimedia everywhere


Changing the wireless experience
The drive to 4G is being fueled by the promise of target peak data rates of
approximately 1 Gigabit per second
(Gbit/s) for low mobility (such as nomadic/local wireless access) and approximately 100 Megabits per second (Mbit/s) for high mobility (such as vehicular mobility). These data rates are part of the International Telecommunication Union (ITU) long-term vision (2010-2015) ....etc

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Burst Rescheduling with Wavelength and Last-hopFDLReassignment in WDM Optical Burst Switching Networks



I. INTRODUCTION
Wavelength division multiplexed (WDM) optical networks
are a promising candidate for the next generation backbone
transport networks. Optical burst switching (OBS), as described
in , , , is able to strike a balance between
optical circuit and packet switching , , , .
A burst is formed at the ingress node by assembling a
number of I ....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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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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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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Abstract
Most device drivers have one ulterior motive and one target to achieve - deliver the maximum using the minimum. No matter how stable or feature rich a device driver might be, if it cannot perform in terms of high throughput and low CPU utilization, it is as good as any other run of the mill driver.The objective of this topic is to use the thinking out of the box concept and expose techniques, which go beyond just good programming principles to get that extra edge which can put your next driver into the elite group of high perform ....etc

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Long-Reach Optical Access Technologies

Abstract

A number of leading long-reach optical access technologies are examined. It gives the economic arguments behind the technologies.

1. Introduction

As broadband uptake increases globally, the services offered are becoming increasingly bandwidth-intensive. A service that continues to increase bandwidth requirements is high-definition television (HDTV), which requires in the region of 8 Mb/s per channel. For telecommunication networks to support a single channel of HDTV plus data and tele ....etc

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Abstract
Dense Wavelength-division multiplexing (DWDM) technology offers tremendous transmission capacity
in optical fiber communications. However, switching and routing capacity lags behind the transmission
capacity, since most of today s packet switches and routers are implemented using slower
electronic components. Optical packet switches are one of the potential candidates to improve switching
capacity to be comparable with optical transmission capacity. In this paper, we present an optically
transparent ATM (OPATM) switch tha ....etc

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In optical WDM networks, since each lightpath can carry a huge mount of traffic, failures may seriously damage the end-user applications.As a result, fault-tolerance is an important issue in these networks. The primary path is the light path which carries traffic during normal operation. in case of a failure, the traffic is rerouted on a backup path. a reliable and fault-tolerant routing algorithm is discussed in this paper for establishing primary and backup path. load balancing is used to establish the primary path. In this method, the pag ....etc

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