Search Results - "Darwazeh, I."

Visible light communications: multi-band super-Nyquist CAP modulation by Haigh, P A, Chvojka, P, Ghassemlooy, Z, Zvanovec, S, Darwazeh, I

“…In this paper, we experimentally demonstrate the performance of a non-orthogonal multi-band super-Nyquist carrier-less amplitude and phase (m-SCAP) modulation…”
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Spectrally Efficient FDM Signals: Bandwidth Gain at the Expense of Receiver Complexity by Kanaras, I., Chorti, A., Rodrigues, M.R.D., Darwazeh, I.

“…This paper investigates the transmission of frequency division multiplexed (FDM) signals, where carrier orthogonality is intentionally violated in order to…”
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A Fast Constrained Sphere Decoder for Ill Conditioned Communication Systems by Kanaras, I, Chorti, A, Rodrigues, M R D, Darwazeh, I

“…This letter proposes a fast constrained sphere decoder for ill conditioned communications systems that exhibits less complexity than but similar performance to…”
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Simplified back-propagation for fibre nonlinearity compensation employing multi-band OFDM signals by Pessoa, L. M., Salgado, H. M., Darwazeh, I.

“…In this paper we investigate the efficacy of applying the coupled field back-propagation algorithm as a post-compensation method for nonlinearity mitigation in…”
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Assessment of dispersion map impact on the digital back propagation of long-haul fibre-optic links by Pessoa, L. M., Salgado, H. M., Darwazeh, I.

“…The back propagation algorithm is one of the best methods known for simultaneous linear and nonlinear impairment mitigation in long-haul fibre-optic links…”
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Performance Evaluation of Phase Estimation Algorithms in Equalized Coherent Optical Systems by Pessoa, L.M., Salgado, H.M., Darwazeh, I.

“…We assess the performance of a coherent optical system employing a phase estimation algorithm combined with a least mean square decision-directed equalizer in…”
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A Fully Bidirectional Optical Network With Latency Monitoring Capability for the Distribution of Timing-Trigger and Control Signals in High-Energy Physics Experiments by Papakonstantinou, I., Soos, C., Papadopoulos, S., Detraz, S., Sigaud, C., Stejskal, P., Storey, S., Troska, J., Vasey, F., Darwazeh, I.

“…The present paper discusses recent advances on a Passive Optical Network inspired Timing-Trigger and Control scheme for the future upgrade of the TTC system…”
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Component and System Level Studies of Radiation Damage Impact on Reflective Electroabsorption Modulators for Use in HL-LHC Data Transmission by Papadopoulos, S., El Nasr-Storey, S. S., Troska, J., Papakonstantinou, I., Vasey, F., Darwazeh, I.

“…We investigate the radiation hardness of Reflective Electroabsorption Modulators (REAMs) for fluence levels up to 14 ×10 15 24 GeV p/cm 2 to explore the…”
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Generalized noise analysis technique for four-port linear networks by Moura, L., Monteiro, P.P., Darwazeh, I.

“…In this paper, we present and discuss a general and modular semi-analytical analysis method for the electrical and the noise characterization of noisy linear…”
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High-speed generalized distributed-amplifier-based transversal-filter topology for optical communication systems by Borjak, A., Monteiro, P.P., O'Reilly, J.J., Darwazeh, I.

“…The use of a distributed-amplifier-based transversal filter as a signal processor for high-rate pulse shaping/filtering is discussed. By showing the analogy…”
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Transmission and multiplexing of uncompressed video and ancillary signals over a new multimedia frame by Sotiropoulos, S., Hawkins, I., Darwazeh, I.

“…This work discusses the design and implementation of a fibre based, low cost communication system for transmission of uncompressed digitised 10 bit video and…”
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Strategies for organic VLC: effects of clipping on the performance of multi-band CAP modulation with polymer-based light-emitting diodes by Haigh, P.A, Chvojka, P, Minotto, A, Burton, A, Murto, P, Wang, E, Ghassemlooy, Z, Zvanovec, S, Cacialli, F, Darwazeh, I

“…We investigate, for the first time, the effect of signal clipping on multi-band carrier-less amplitude and phase (m-CAP) modulation in visible light…”
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VLSI Architecture for a Reconfigurable Spectrally Efficient FDM Baseband Transmitter by Whatmough, P. N., Perrett, M. R., Isam, S., Darwazeh, I.

“…Spectrally efficient FDM (SEFDM) systems employ non-orthogonal overlapped carriers to improve spectral efficiency for future communication systems. One of the…”
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Circuit-Level Timing Error Tolerance for Low-Power DSP Filters and Transforms by Whatmough, P. N., Das, S., Bull, D. M., Darwazeh, I.

“…In this paper, we present a novel circuit-level timing error mitigation technique, which aims to increase energy-efficiency of digital signal processing…”
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Performance assessment of MC-CDMA and MC-DS-CDMA in the presence of high power amplifier non-linearities by Hathi, N., Rodrigues, M., Darwazeh, I., O'Reilly, J.

“…The combination of code division multiple access (CDMA) and multi-carrier modulation (MCM) (referred to as multi-carrier CDMA) has been proposed as a possible…”
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A simplified approach to predicting negative resistance in a microwave transistor with series feedback by Poole, C. R., Darwazeh, I. Z.

“…This paper addresses the question of how to predict the series feedback termination required to generate negative resistance in a microwave transistor in…”
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A Truncated SVD approach for fixed complexity spectrally efficient FDM receivers by Isam, S, Kanaras, I, Darwazeh, I

“…Spectrally Efficient Frequency Division Multiplexing (SEFDM) systems aim to reduce the utilized spectrum by multiplexing non-orthogonal overlapped carriers…”
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Optical fibre transmission of video and audio signals using square wave frequency modulation by Ghassemlooy, Z., Wilson, B., Darwazeh, I.

“…The authors report the design, construction and performance of a square wave frequency modulation (SWFM) technique for point-to-point transmission of video and…”
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Signal processing techniques for transmission impairments compensation in optical systems by Oliveira, J M B, Pessoa, L M, Salgado, H M, Darwazeh, I

“…We discuss recent developments in signal processing techniques for post-compensation of fiber dispersion and nonlinear distortion in both coherent and…”
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Design and Performance Assessment of Fixed Complexity Spectrally Efficient FDM Receivers by Isam, S., Darwazeh, I.

“…Spectrally Efficient FDM (SEFDM) signals employs non-orthogonal and overlapping carriers to provide higher spectrum utilization relative to Orthogonal FDM…”
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