The proceedings contains 29 papers from the conference on allopticalcommunicationsystems: architecture, control, and networkissues II. Topics discussed include: optically preamplified receivers using resonant phot...
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The proceedings contains 29 papers from the conference on allopticalcommunicationsystems: architecture, control, and networkissues II. Topics discussed include: optically preamplified receivers using resonant photodiodes;pulse modulation for a subcarrier-multiplexed optical fiber transmission system;digital pulse interval modulation for transmission over optical fiber with direct detection;planar networks;optimal control of all-opticalcommunication soliton systems;and eliminating four-wave-mixing crosstalk in wavelength-division-multiplexing systems.
The proceedings contain 31 papers. The topics discussed include: concept and architecture of indoor optical wireless multimedia systems;supervisory system and data communication channel for WDM-based transmission syst...
The proceedings contain 31 papers. The topics discussed include: concept and architecture of indoor optical wireless multimedia systems;supervisory system and data communication channel for WDM-based transmission systems;management in the WDM all-opticalnetwork;switch setting algorithms for the optical N-gon prism switch;automatic test station for network synchronization performance characterization;CATO: a CAD tool for intelligent design of opticalnetworks and interconnects;minimal-disturbance topology reconfiguration in all-opticalnetworks;throughput of optical broadcast star networks with delay constraints;full service access network-experimental realisation and performance;optimization of broadband optical access networks for residential and small business users;embedded real time control of optically amplified repeaters in broadband access networks;physical layer dimensioning of superPON architectures;and scheduling in unidirectional WDM rings and its extensions.
An architectural approach for indoor optical wireless multimedia networks is proposed. optical wireless (OW) systems offer user mobility as is the case with RF wireless. However, OW offer additional advantages such as...
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ISBN:
(纸本)0819426636
An architectural approach for indoor optical wireless multimedia networks is proposed. optical wireless (OW) systems offer user mobility as is the case with RF wireless. However, OW offer additional advantages such as increased bandwidth, abundant unregulated spectrum, freedom from fading and a radiation that is contained within the communication zone. In this paper the rationale behind the approach, the important role of the wireless packet transfer layer (WPTL) in the protocol stack of the system, and the transport architecture of the ATM cells through the optical wireless channel are discussed.
In this paper, we introduce a structural model for WDM(Wavelength Division Multiplexing)based LT(Line Termination) systems containing the fundamental functions recommended by ITU-T, and we describe how to configure th...
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ISBN:
(纸本)0819426636
In this paper, we introduce a structural model for WDM(Wavelength Division Multiplexing)based LT(Line Termination) systems containing the fundamental functions recommended by ITU-T, and we describe how to configure the supervisory system and data communication channels to be adaptable to the WDM-based transmission systems considering compatibility with the SDH-based supervisory systems. Also we propose that two new reference points(N2 and N3) be added to the MCF(Message communication Function) like N and P from the view point of the telecommunication management network.
In this paper, we study an adaptive algorithm for routing in an all-optical wavelength routed network where a lightpath is dynamically created in response to a request for communication and the WDM channels constituti...
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ISBN:
(纸本)0819426636
In this paper, we study an adaptive algorithm for routing in an all-optical wavelength routed network where a lightpath is dynamically created in response to a request for communication and the WDM channels constituting the lightpath are reclaimed when the communication is over. We have proposed three possible distributed strategies to determine, if possible, a lightpath when there is a request for communication. Each of these strategies have their advantages and disadvantages in terms of the expected blocking probability and the set-up time. We consider the Kautz digraph as the network topology and study the performance of our distributed strategies through simulation.
The deployment of an allopticalnetwork requires that all transmission and switching equipment be properly synchronized. The synchronization performance characterization of telecommunication equipment and networks re...
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ISBN:
(纸本)0819426636
The deployment of an allopticalnetwork requires that all transmission and switching equipment be properly synchronized. The synchronization performance characterization of telecommunication equipment and networks requires a wide variety of specialized equipment, each one performing a specific task, with limited data collection, transfer, and analysis capabilities. Most of the required equipment is heavy, difficult to use, and occupy substantial floor space. A portable, user friendly, and easy to maintain automatic test station for synchronization performance monitoring and characterization has been developed.
A new layered structure for multi-wavelength photonic transport networks is proposed after optical wavelength-division-multiplexing(WDM) technologies and optical path technologies are introduced. Photonic layer is ins...
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ISBN:
(纸本)0819426636
A new layered structure for multi-wavelength photonic transport networks is proposed after optical wavelength-division-multiplexing(WDM) technologies and optical path technologies are introduced. Photonic layer is inserted between traditional physical layer and section layer. It can be divided further into three sublayers: optical path layer, WDM section layer, and multi-wavelength amplifying section layer. The functions of photonic layer and its sublayer are defined. Some problems that are related to photonic layer are discussed and solved. network management issues are also discussed in this paper.
all-opticalcommunications based on OFDM techniques are very attractive for future telecommunications. However, the frequency instability of semiconductor laser diodes still constitutes an obstacle to exploit OFDM ben...
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ISBN:
(纸本)0819426636
all-opticalcommunications based on OFDM techniques are very attractive for future telecommunications. However, the frequency instability of semiconductor laser diodes still constitutes an obstacle to exploit OFDM benefits. In this paper, we present a decentralized frequency control system suitable for large scale all-opticalnetworks. Spectrum partitioning is proposed so that the controllable spectral range could be enlarged and link fault could be detected. Experimental results on monitoring and stabilizing a channel frequency in a local node, confirm the feasibility of the described method.
This paper presents the use of distributed, intelligent control and management in optically amplified repeaters. These optical repeater units (ORU's) are used in an optical access network. A Semiconductor optical ...
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ISBN:
(纸本)0819426636
This paper presents the use of distributed, intelligent control and management in optically amplified repeaters. These optical repeater units (ORU's) are used in an optical access network. A Semiconductor optical Amplifier (SOA) has been used in the upstream direction because of the possibility of fast switching. The real time control platform consists of both a hard-and a software part. The software control is handled with the embedded control system FORTRESS developed by IMEC.
Power budget dimensioning of semiconductor optical amplifier based SuperPON architectures originating from the EC ACTS project PLANET is described. The upstream power budget is critical for SuperPONs. Under worst case...
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ISBN:
(纸本)0819426636
Power budget dimensioning of semiconductor optical amplifier based SuperPON architectures originating from the EC ACTS project PLANET is described. The upstream power budget is critical for SuperPONs. Under worst case conditions it is found that a 5 SOA cascade in the upstream is capable of achieving the full PLANET target system dimensions (2048 way split and 100 km range). Longer feeders are also found to be possible, with the use of further feeder amplification stages, which is useful for the situation when the SuperPON is to be deployed in a ring trenching structure.
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