Institution
Ciena
Company•Hanover, Maryland, United States•
About: Ciena is a company organization based out in Hanover, Maryland, United States. It is known for research contribution in the topics: Signal & Node (networking). The organization has 1259 authors who have published 1557 publications receiving 25989 citations.
Topics: Signal, Node (networking), Optical performance monitoring, Optical fiber, Optical cross-connect
Papers published on a yearly basis
Papers
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04 Mar 2013TL;DR: In this article, the authors proposed two approaches to improve upon the responsiveness of the network for connection setups including bandwidth reservation in optical networks using dynamic link tags and link overbooking in optical network based on a greedy approach.
Abstract: Call setup methods in a multi-domain network and a multi-domain network use dynamic link tagging and/or overbooking of External Network-Network Interface (ENNI) links. Thus, improved call setup systems and methods include two approaches to improve upon the responsiveness of the network for connection setups including bandwidth reservation in optical networks using “dynamic link tags” and link overbooking in optical networks based on a greedy approach. The bandwidth reservation and the link overbooking can be utilized together or separately to improve call setup. Advantageously, the improved call setup systems and methods can provide a generic bandwidth reservation mechanism, such as in Automatically Switched Optical Network (ASON) networks, to overcome the limitation of ENNI in concurrently updating the abstract link bandwidth and thereby improving the responsiveness of the network.
11 citations
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22 Jan 2009TL;DR: In this article, the authors propose a method for managing data packets passing through an Ethernet node having multiple ingress ports and multiple egress ports, which comprises mapping one or more of the services to each of the at least one Logical Transport Resource (LTR) configured as a predefined path between one of the egress points and a destination in the Ethernet network.
Abstract: A method for managing data packets passing through an Ethernet node having multiple ingress ports and multiple egress ports, the ingress ports receiving the data packets from at least one service, and the egress ports configured with at least one Logical Transport Resource (LTR) configured as a predefined path between one of the egress ports and a destination in the Ethernet network. The method comprises mapping one or more of the services to each of the at least one LTR, shaping each of the at least one LTR to a configured rate, and transmitting data packets to the Ethernet network via the egress ports.
11 citations
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22 Jan 2010TL;DR: In this article, a high-speed signal generator is proposed, where a digital signal processing (DSP) block generates a set of N (where N is an integer and N≧2) parallel digital sub-band signals, each digital subband signal having frequency components within a spectral range between 0 Hz and ±Fs/2, where Fs is a sample rate of the digital sub band signals.
Abstract: A high-speed signal generator. A digital signal processing (DSP) block generates a set of N (where N is an integer and N≧2) parallel digital sub-band signals, each digital sub-band signal having frequency components within a spectral range between 0 Hz and ±Fs/2, where Fs is a sample rate of the digital sub-band signals. A respective Digital-to-Analog Converter (DAC) processes each digital sub-band signal to generate a corresponding analog sub-band signal, each DAC having a sample rate of Fs/2. A combiner combines the analog sub-band signals to generate an output analog signal having frequency components within a spectral range between 0 Hz and ±NFs/2.
11 citations
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12 Jan 2001TL;DR: In this article, the authors propose a system to prevent damage to at least one component of a laser apparatus that includes a laser that emits a light signal of increasing power during power up and at least a connector that receives the light signal from the laser and reflects at least some of the reflected light signal when an imperfect connection exists.
Abstract: A system prevents damage to at least one component of a laser apparatus that includes a laser that emits a light signal of increasing power during power up and at least one connector that receives the light signal from the laser and reflects at least a portion of the light signal when an imperfect connection exists. The system includes a detector and a monitoring circuit. The detector detect the reflected light signal from the connector. The monitoring circuit receives the reflected light signal, determines an amount of power in the reflected light signal, calculates a ratio of the power of the light signal emitted by the laser to the power in the reflected light signal, compares the ratio to a predetermined threshold to determine whether the imperfect connection exists, and shuts down the laser when the imperfect connection exists.
11 citations
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03 Apr 2008TL;DR: In this article, a dual-feed Power Distribution Unit (PDU) using custom designed magnetic components that are uniquely designed to provide excellent performance under various load conditions is presented. But, the performance of the PDU is limited due to the single feed failure.
Abstract: The present invention provides highly efficient system level EMI filtering in a dual feed Power Distribution Unit (PDU) using custom designed magnetic components that are uniquely designed to provide excellent performance under various load conditions. The PDU of the present invention includes filters for providing the necessary EMI filtering at all frequencies in the range between 200 Hz and 200 MHz under all load conditions including a single feed failure. Additionally, the present invention provides mechanisms for cooling EMI components using a combination of natural convection and conduction techniques at the board level to ensure no loss of EMI filtering performance. The present invention also includes blank panels made of formed Aluminum alloy sheet metal pieces or the like to direct air flow to components on printed wiring boards (PWB's) using air director plates.
11 citations
Authors
Showing all 1261 results
Name | H-index | Papers | Citations |
---|---|---|---|
Hsiang-Tsung Kung | 65 | 359 | 25458 |
Amir K. Khandani | 48 | 394 | 9590 |
Kim B. Roberts | 41 | 203 | 5605 |
Weidong Zhou | 40 | 314 | 5885 |
Seb J. Savory | 38 | 240 | 7292 |
Zuyuan He | 38 | 498 | 5643 |
Chandra Sekhar Bontu | 37 | 144 | 4147 |
Leo Strawczynski | 33 | 75 | 3795 |
Maurice O'Sullivan | 28 | 126 | 2615 |
John C. Cartledge | 27 | 245 | 2686 |
Qunbi Zhuge | 24 | 180 | 2006 |
Yun Wang | 23 | 77 | 1803 |
David Côté | 22 | 40 | 2254 |
Petar Djukic | 22 | 60 | 1734 |
Andrzej Borowiec | 21 | 53 | 1717 |