Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"DPSK"”.
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Design of a 50 GHz Bandwidth DPSK Compatible Monolithically Integrated Optical Receiver
… for 50 Gb⁄s differential phase shift keying (DPSK) applications. For the InP ⁄ InGaAs double-heterojunction bipolar transistor (DHBT), a small signal equivalent model based upon the Gummel-Poon bipolar junction transistor model was used. This model was determined by fitting measured …
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Numerical modelling of advanced modulation formats and WDM transmission
… differential phase-shift keying (RZ-DPSK) with advanced photonic devices. Finally we analyse the dispersion management of Nx40 Gbit/s RZ-DPSK transmission applied to a commercial terrestrial lightwave system.
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Semiconductor Mode-Locked Laser for High-Speed OTDM Transmission
… (OOK) oder differentieller Phasenmodulation (DPSK). Bis zu dieser Arbeit wurden Halbleiterlaser nicht für Datenraten über 160 Gbit/s und in Transmissionsexperimenten mit dem DPSK Modulationsformat eingesetzt. Mit den Halbleiterlasern wurden Pulsfolgen mit einer Wiederholrate von 10 GHz oder 40 …
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Control of a Nonlinear Mach-Zehnder Interferometer for Regeneration Using Digital Signal Processing
… regenerators with the control method for 43 Gb/s DPSK signals is evaluated by simulation. The sampling rate of the analog-to-digital converter (ADC) in coherent receiver is 335.94 MSa/s, which largely reduces the complexity and cost. The simulations assume all the samples are obtained at bit …
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Performance of Digital Communications Over Selective Fading Channels
… of binary differential phase-shift keyed (DPSK) and binary frequency-shift keyed (FSK) communications with primary emphasis on the effects of intersymbol interference produced by the frequency-selective character of WSSUS fading channels.
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Analysis and optimisation of the performance of nonlinear optical communication systems
… penalty. We present a statistical analysis of RZ-DPSK optical signal at direct detection receiver with Mach-Zehnder interferometer demodulation
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Digital equalization techniques for the compensation of nonlinear impairments in long-haul coherent optical communication systems
… 40 Gb/s using Differential Phase Shift Keying (DPSK) revolutionized the field of fiber-optic communications because it provided superior spectral efficiency compared to the state-of-the-art binary intensity-modulation direct-detection receivers. A precursor to this development was the …
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Οπτικά τηλεπικοινωνιακά συστήματα διασύνδεσης υψηλής φασματικής απόδοσης με πολυπλεξία μήκους κύματος και προηγμένες τεχνικές διαμόρφωσης
… διαμόρφωσης όπως η διαφορική διαμόρφωση φάσης (DPSK) με άμεση φώραση, η διαμόρφωση με ορθογώνια πολυπλεξία συχνότητας (OFDM) με άμεση φώραση, καθώς και μελλοντικά υποψήφιες τεχνικές διαμόρφωσης, για τέτοια είδους δίκτυα, όπως η τετραδική διαμόρφωση φάσης με πολυπλεξία της πόλωσης (PDM-QPSK), και …
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Novel DWT-DAPSK based transceivers for DVB-T transmission and next generation mobile networks
… Several types of modulation schemes such as DPSK, QAM are employed in OFDM systems, which introduce certain penalties such as increased bandwidth and complexity of the system design. So a multilevel differential modulation technique namely Differential Amplitude and Phase Shift Keying (64 …