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high capacity optical channels

Digital nonlinearity compensation in high capacity optical communication systems considering signal spectral broadening effect

Digital nonlinearity compensation in high capacity optical communication systems considering signal spectral broadening effect

... versus optical signal power per channel at different back-propagated bandwidths for MC-DBP applied to a 5-channel Nyquist-spaced optical transmission ...the channels with indices of − 2, − 1, 0 (see ...

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Power Ratio Enhancement of an Optical Wireless Channels

Power Ratio Enhancement of an Optical Wireless Channels

... an optical system, only a limited path loss can be bearable and requires relatively high optical transmit ...a high peak-to- mean power ratio are most approvable because of the fact that the ...

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On the performance of multichannel digital backpropagation in high capacity long haul optical transmission

On the performance of multichannel digital backpropagation in high capacity long haul optical transmission

... Abstract: The performance of digital backpropagation (DBP) equalization when applied over multiple channels to compensate for the nonlinear impairments in optical fiber transmission systems is investigated. ...

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Architecture on Demand Design for High-Capacity Optical SDM/TDM/FDM Switching

Architecture on Demand Design for High-Capacity Optical SDM/TDM/FDM Switching

... many channels are multiplexed on the same wavelength in time, according to a predefined TDM ...sliced channels are fully ...an optical signal is considered as an AoD stage. In more detail, an ...

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High Capacity Optical Fiber Link Design For Telecommunication Backbone Network

High Capacity Optical Fiber Link Design For Telecommunication Backbone Network

... day’s high speed and high capacity are the two preconditions for telecommunication networks to provide good quality and huge support to the ...the optical fiber (OF). In many developing ...

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20 G bps Pulse Amplitude Modulation (PAM) Format for Capacity Upgrade in Optical Communications

20 G bps Pulse Amplitude Modulation (PAM) Format for Capacity Upgrade in Optical Communications

... the optical signal back to electrical data ...For optical PAM-4 systems, the sequence generator used provides up to 2 optical channels per ...multilevel high speed optical ...

5

Multi slot amplitude coding technique for high speed optical fiber communication system

Multi slot amplitude coding technique for high speed optical fiber communication system

... for high speed equipment realization to utilize fiber optic bandwidth to transport more ...of optical wavelengths are used as data ...an optical fiber using WDM multiplexer (WDM ...Each ...

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Design, monitoring and performance evaluation of high capacity optical networks

Design, monitoring and performance evaluation of high capacity optical networks

... flexible/elastic optical networks utilising optical Super-Channels (Sp-Ch) together with spectrally flexible/elastic multiplexing schemes and advanced modulation formats, thus enabling the dynamic ...

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Current Trends of High capacity Optical Interconnection Data Link in High Performance Optical Communication Systems

Current Trends of High capacity Optical Interconnection Data Link in High Performance Optical Communication Systems

... a WDM interconnection system. A similar structure has been proposed for polymer modulators [7]. Light from a WDM source or a broadband source is sent into a silicon waveguide coupled to multiple ring modulators with ...

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Current Trends of High Capacity Optical Interconnections

Current Trends of High Capacity Optical Interconnections

... wavelength channels of transport at ...wavelength channels per fiber and the data rate per ...of optical components for telecommunications is simultaneously stressing computer system bandwidth ...

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Block based Watermarking for Color Images using DCT and DWT

Block based Watermarking for Color Images using DCT and DWT

... Discrete Cosine Transform (DCT) is a transformation algorithm that converts images from spatial domain to frequency domain [15, 16]. It has been widely used in digital image watermarking, because it has great advantages ...

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Diurnal and Monthly Variation of Aerosol Optical Depth and Angstrom’s Parameters in Kathmandu Valley

Diurnal and Monthly Variation of Aerosol Optical Depth and Angstrom’s Parameters in Kathmandu Valley

... of optical properties of aerosols for the observation period from December 2011 to March 2013 shows the dependency of AOD and angstrom’s parameters on the meteorological parameters in the ...shows high ...

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Digital nonlinearity compensation in high capacity optical fibre communication systems : performance and optimisation

Digital nonlinearity compensation in high capacity optical fibre communication systems : performance and optimisation

... doped optical fibre amplifier (EDFA) is applied to compensate for the loss in each fibre ...the optical signals are mixed with the local oscillator (LO) laser to implement an ideal coherent ...

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Analysis of Cognitive Radio Capacity in Fading Channels

Analysis of Cognitive Radio Capacity in Fading Channels

... or capacity in bits/second or spectral efficiency in bits/sec/Hz for wireless ...on capacity analysis [14] which could provide optimized performance for spectrum ulitilization through packets ...

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The Effects of Ostentatious Calls in GSM Networks

The Effects of Ostentatious Calls in GSM Networks

... logical channels used to convey digit information signal from one network element to ...transmission channels without financial benefit accrue to the mobile communication ...the high number of ...

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Analytical Investigation of Channel Capacity of UWB MIMO Systems

Analytical Investigation of Channel Capacity of UWB MIMO Systems

... channel capacity of UWB systems can indeed be scaled in proportion to the number of transmit/receive antennas, this deficiency can be resolved by integrating UWB with MIMO ...

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On the Relationship between the Underwater Acoustic and Optical Channels

On the Relationship between the Underwater Acoustic and Optical Channels

... the optical SNR becomes more ...the optical SNR becomes ...When optical measurements are performed deeper than the euphotic zone, b tends to drop, as observed, ...

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Simulation of High Data Rate Transmission over Optical Cable Channels Using OFDM/OQAM Modulation

Simulation of High Data Rate Transmission over Optical Cable Channels Using OFDM/OQAM Modulation

... with high side-lobe suppression ratio, which can effectively reduce the electrical sub-band frequency ...The optical fiber communication networks fulfill these requirements along with small attenuation loss ...

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Secrecy Capacity of a Class of Orthogonal Relay Eavesdropper Channels

Secrecy Capacity of a Class of Orthogonal Relay Eavesdropper Channels

... secrecy capacity of the Gaussian multiple-input multiple-output channels in the presence of a multiantenna eavesdropper (MIMOME) in ...the capacity. We show that these bounds are tight for a subclass ...

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Optimization of Self-Adaptive High Anti-Radiation EDFA for Space OCS: A Review

Optimization of Self-Adaptive High Anti-Radiation EDFA for Space OCS: A Review

... of optical amplifier configurations on simplex and 8 channel WDM inter-satellite free space optical communication system using NRZ-OOK and shown that 23 dBm input laser power, 50 Gbps of data rate can be ...

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