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Prof Izzat Darwazeh

PhD, FIET, SMIEEE

Professor of Communications Engineering

Room 711, Roberts Building, UCL

Address:Department of Electronic & Electrical Engineering
University College London
Torrington Place
London
WC1E 7JE
Research Group:Communications and Information Systems
Personal Web Page:http://www.ee.ucl.ac.uk/~idarwaze
E-mail: i.darwazeh@ee.ucl.ac.uk
Telephone: +44 (0)20 7679 3945 / 33945 (internal)  
Fax:+44 (0)20 7388 9325

Izzat Darwazeh obtained his first degree in Electrical Engineering from the University of Jordan in 1984. He obtained the MSc and PhD degrees, from the University of Manchester Institute of Science and Technology (UMIST), in 1986 and 1991, respectively. He worked as a postdoctoral research Fellow at the University of Wales - Bangor -UK from 1990 till 1993, researching very high speed optical systems and advanced MMICs for optical communications applications. He was a Senior Lecturer in Optoelectronic Circuits and Systems in the Department at Electrical Engineering and Electronics at UMIST. He moved to University College London in October 2001.

His teaching covers aspects of optical fibre communications, telecommunication networks and high speed integrated circuits and MMICs. His research interests are mainly in the areas of high speed optical communication systems and networks, microwave circuits and MMICs for optical fibre applications and in mobile communication circuits and systems. He has authored/co-authored more than 120 papers in the areas of optical and wireless (cellular) communications and MMICs and high speed/frequency circuits. He is the co-editor of the IEE book on "Analogue Optical Communications" and the co-author (with Luis Moura) of "Linear Circuit Analysis and Modelling: From DC to RF". He acts as a consultant to several UK and international organisations and commercial bodies and he serves on a wide range of professional committees.

Since 2001 he has been with the Department of Electronic and Electrical Engineering, UCL, becoming a Professor of Telecommunications Engineering in 2006.

Research areas of interest include:

Optical Communications

  • Multi-Gbit/s MIC, MMIC and OEIC circuits for optical and mobile communications
  • Distributed amplifier structures constructed using HBT devices.
  • High bit rate HEMT-distributed amplifier MMICs for optical receiver applications.
  • Signal shaping and filtering for 2.5, 10 and 40 Gbit/s systems.
  • Multiplexed video transmission over optical fibre for CATV applications
  • Optical fibre long haul systems modelling and optimization

Wireless Communications

  • System modeling and performance analysis (GSM, EDGE and 3G)
  • Base station receivers
  • ACI and noise effects in cellular systems
  • OFDM systems; receiver design and system modelling
  • Wireless LANs at 40 and 60 GHz.

Circuits design and modelling

  • Ultra-broad band circuit design
  • Noise modelling

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Number of items: 153.

2012

Clegg, RG and Isam, S and Kanaras, I and Darwazeh, I (2012) A practical system for improved efficiency in frequency division multiplexed wireless networks. IET COMMUNICATIONS , 6 (4) 449 - 457. 10.1049/iet-com.2011.0365.

Grammenos, RC and Darwazeh, I and IEEE, (2012) Hardware Implementation of a Practical Complexity Spectrally Efficient FDM Reconfigurable Receiver. In: 2012 IEEE 23RD INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC). (pp. 2401 - 2407).

Isam, S and Darwazeh, I (2012) Characterizing the intercarrier interference of non-orthogonal Spectrally Efficient FDM system. In: CSNDSP. (pp. 1 - 5). IEEE

Isam, S and Darwazeh, I (2012) Robust channel estimation for Spectrally Efficient FDM system. In: ICT. (pp. 1 - 6). IEEE

Perrett, MR and Darwazeh, I (2012) Characterisation and verification of an FPGA signal generator for spectrally efficient wireless FDM. In: ICT. (pp. 1 - 5). IEEE

Perrett, MR and Grammenos, RC and Darwazeh, I and IEEE, (2012) A Verification Methodology for the Detection of Spectrally Efficient FDM Signals Generated using Reconfigurable Hardware. In: 2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC).

Sun, K and Darwazeh, I and Huang, L-K and Jones, A (2012) Optimal pilot based frequency-dependent I/Q imbalance compensation for wideband direct-conversion transmitters. In: WCNC. (pp. 226 - 231). IEEE

Whatmough, PN and Das, S and Bull, DM and Darwazeh, I (2012) Selective time borrowing for DSP pipelines with hybrid voltage control loop. In: ASP-DAC. (pp. 763 - 768). IEEE

Whatmough, PN and Perrett, MR and Isam, S and Darwazeh, I (2012) VLSI Architecture for a Reconfigurable Spectrally Efficient FDM Baseband Transmitter. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS , 59 (5) 1107 - 1118. 10.1109/TCSI.2012.2185304.

Whatmough, PN and Perrett, MR and Isam, S and Darwazeh, I (2012) VLSI Architecture for a Reconfigurable Spectrally Efficient FDM Baseband Transmitter. IEEE Trans. on Circuits and Systems , 59-I , Article 5. 10.1109/TCSI.2012.2185304.

2011

Grammenos, RC and Isam, S and Darwazeh, I and IEEE, (2011) FPGA Design of a Truncated SVD Based Receiver for the detection of SEFDM Signals. In: 2011 IEEE 22ND INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC). (pp. 2085 - 2090).

Isam, S and Darwazeh, I (2011) Design and Performance Assessment of Fixed Complexity Spectrally Efficient FDM Receivers. In: VTC Spring. (pp. 1 - 5). IEEE

Isam, S and Kanaras, I and Darwazeh, I (2011) A Truncated SVD approach for fixed complexity spectrally efficient FDM receivers. WCNC 1584 - 1589. 10.1109/WCNC.2011.5779400.

Isam, S and Kanaras, I and Darwazeh, I and IEEE, (2011) A Truncated SVD Approach for Fixed Complexity Spectrally Efficient FDM Receivers. In: 2011 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC). (pp. 1584 - 1589).

Papadopoulos, S and Darwazeh, I and Papakonstantinou, I and Troska, J and Vasey, F (2011) An electroabsorption modulator-based network architecture for particle physics applications. JOURNAL OF INSTRUMENTATION , 6 , Article ARTN C12012. 10.1088/1748-0221/6/12/C12012.

PAPAKONSTANTINOU, I and Soos, C and Papadopoulos, S and Detraz, S and Sigaud, C and Stejskal, P and Storey, S and Troska, J and Vasey, F and Darwazeh, I (2011) A Fully Bidirectional Optical Network With Latency Monitoring Capability for the Distribution of Timing-Trigger and Control Signals in High-Energy Physics Experiments. IEEE Transactions on Nuclear Science , 58 (4) pp. 1628-1640. 10.1109/TNS.2011.2154364.
An open access version is available from UCL Discovery
file

Perrett, MR and Darwazeh, I (2011) A Simple Ethernet Stack Implementation in VHDL to Enable FPGA Logic Reconfigurability. In: Athanas, PM and Becker, J and Cumplido, R, (eds.) ReConFig. (pp. 286 - 290). IEEE Computer Society

Whatmough, PN and Das, S and Bull, DM and Darwazeh, I (2011) Error-resilient low-power DSP via path-delay shaping. In: Stok, L and Dutt, ND and Hassoun, S, (eds.) DAC. (pp. 1008 - 1013). ACM

Whatmough, PN and Perrett, MR and Isam, S and Darwazeh, I and IEEE, (2011) VLSI Architecture for a Reconfigurable Spectrally Efficient FDM Baseband Transmitter. In: 2011 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS). (pp. 1688 - 1691).

2010

Aldabbagh, G and Rio, M and Darwazeh, I (2010) Fair Early Drop: An Active Queue Management Scheme for the Control of Unresponsive Flows. In: CIT. (pp. 2668 - 2675). IEEE Computer Society

Chen, Y and Yang, Y and Darwazeh, I (2010) A Cross-Layer Analytical Model of End-to-End Delay Performance for Wireless Multi-hop Environments. In: 2010 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE GLOBECOM 2010. (pp. ? - ?). IEEE

Chorti, A and Kanaras, I and Rodrigues, MRD and Darwazeh, I and IEEE, (2010) Joint Channel Equalization and Detection of Spectrally Efficient FDM Signals. In: 2010 IEEE 21ST INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC). (pp. 177 - 182).

Darwazeh, IZ and Moreira, P and Alvarez, P and Serrano, J and Wlostowski, T (2010) Digital Dual Mixer Time Difference for Sub-Nanosecond Time Synchronization in Ethernet.

Darwazeh, IZ and Oliveira, J and Pessoa, L and Salgado, H (2010) Signal Processing Techniques for Transmission Impairments Compensation in Optical Systems.

Isam, S and Darwazeh, I (2010) Simple DSP-IDFT techniques for generating spectrally efficient FDM signals. CSNDSP 20 - 24.

Isam, S and Darwazeh, I and IEEE, (2010) Precoded Spectrally Efficient FDM System. In: 2010 IEEE 21ST INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC). (pp. 99 - 104).

Kanaras, I and Chorti, A and Rodrigues, MRD and Darwazeh, I (2010) A Fast Constrained Sphere Decoder for Ill Conditioned Communication Systems. IEEE COMMUN LETT , 14 (11) 999 - 1001. 10.1109/LCOMM.2010.093010.100918.

Whatmough, PN and Darwazeh, I and Bull, DM and Das, S and Kershaw, D (2010) A robust FIR filter with in situ error detection. ISCAS 4185 - 4188. 10.1109/ISCAS.2010.5537581.

2009

Darwazeh, IZ and Kanaras, I and Chorti, A and Rodrigues, M (2009) A New Quasi-Optimal Detection Algorithm for a Non Orthogonal Spectrally Efficient FDM.

Darwazeh, IZ and Medeiros, M and Avo, R and Laurencio, P and Mitchell, J and Monteiro, P and da Silva, H (2009) Convergence of Optical and Millimeter-Wave Broadband Wireless Access Networks.

Darwazeh, IZ and Pessoa, L and Salgado, H (2009) Assessment of Parallel Equalizer/Phase Estimation Algorithms in Coherent Optical Systems.

Darwazeh, IZ and Pimenta, M (2009) Circuit Design Proposal for Multi-GBit/s CDMA over Fibre using Distributed Topologies.

Kanaras, I and Chorti, A and Rodrigues, M and Darwazeh, I and IEEE, (2009) Investigation of a Semidefinite Programming Detection for a Spectrally Efficient FDM System. 2009 IEEE 20TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS 2827 - 2832. 10.1109/PIMRC.2009.5449891.

Kanaras, I and Chorti, A and Rodrigues, MRD and Darwazeh, I (2009) Spectrally Efficient FDM Signals: Bandwidth Gain at the Expense of Receiver Complexity. In: 2009 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-8. (pp. 3701 - 3706). IEEE

Medeiros, MCR and Avo, R and Laurencio, P and Correia, NS and Barradas, A and da Silva, HJA and Darwazeh, IZ and Mitchell, JE and Monteiro, PMN (2009) RoFnet – Reconfigurable Radio over Fiber Network Architecture Overview. Journal of Telecommunications and Information Technology (1) 38 - 43.

Pessoa, LM and Salgado, HM and Darwazeh, I (2009) Performance Evaluation of Phase Estimation Algorithms in Equalized Coherent Optical Systems. IEEE PHOTONIC TECH L , 21 (17) 1181 - 1183. 10.1109/LPT.2009.2024003.

Pimenta, M and Darwazeh, I (2009) Experimental Demonstration of Electronic GVD Compensation in Optical CDMA Networks. In: 2009 DIGEST OF THE LEOS SUMMER TOPICAL MEETINGS. (pp. 25 - 26). IEEE

2008

Darwazeh, I and Moura, L (2008) Frequency Domain Circuit Anlysis. In: Clive, ME, (ed.) Electrical Engineering-Know it all. (229 - 315). Elsevier-Newness

Darwazeh, IZ and Pessoa, L and Salgado, H (2008) Joint Mitigation of Optical Impairments and Phase Estimation in Coherent Optical Systems.

Darwazeh, IZ and Pimenta, M (2008) Electronic Signal Processing for Optical Code Division Multiple Access Networks.

Kanaras, I and Chorti, A and Rodrigues, MRD and Darwazeh, I (2008) A Combined MMSE-ML Detection for a Spectrally Efficient non Orthogonal FDM Signal. In: 2008 5TH INTERNATIONAL CONFERENCE ON BROADBAND COMMUNICATIONS, NETWORKS AND SYSTEMS (BROADNETS 2008). (pp. 421 - 425). IEEE

Maxfield, C and Darwazeh, I and Moura, L (2008) Electrical Engineering. Newnes

Pimenta, M and Darwazeh, I (2008) Mitigation of Group Velocity Dispersion in Optical CDMA Networks using Electronics. In: 2008 DIGEST OF THE LEOS SUMMER TOPICAL MEETINGS. (pp. 157 - 158). IEEE

Pimenta, M and Darwazeh, I (2008) Performance Modeling of Optical Code Division Multiple Access Networks Impaired by Group Velocity Dispersion. In: GLOBECOM 2008 - 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE. (pp. ? - ?). IEEE

2007

Aguilar-Torrentera, J and Darwazeh, I (2007) Performance analysis of a monolithic integrated transversal filter using mixed-mode scattering parameters. IET MICROW ANTENNA P , 1 (4) 925 - 931. 10.1049/iet-map:20060181.

Li, K and Darwazeh, I (2007) System performance comparison of Fast-OFDM with overlapping MC-DS-CDMA and MT-CDMA systems. In: 2007 6TH INTERNATIONAL CONFERENCE ON INFORMATION, COMMUNICATIONS & SIGNAL PROCESSING, VOLS 1-4. (pp. 1559 - 1562). IEEE

Medeiros, MCR and Avo, R and Laurencio, P and Correia, NSB and A, DS and H J A, D and I Z, M and J E Monteiro, PMN (2007) Radio over fiber access network architecture employing reflective semiconductor optical amplifier. In: (Proceedings) International Conference on Transparent Optical Networks (ICTON). (pp. 1 - 5).

Pimenta, MN and Darwazeh, I (2007) Optical fibre CDMA for access and optical networks. In: 2007 6TH INTERNATIONAL CONFERENCE ON INFORMATION, COMMUNICATIONS & SIGNAL PROCESSING, VOLS 1-4. (pp. 1729 - 1732). IEEE

Pimenta, MN and Darwazeh, I (2007) System and circuit design for time-wavelength optical CDMA networks. In: Marciniak, M, (ed.) ICTON 2007: Proceedings of the 9th International Conference on Transparent Optical Networks, Vol 1. (pp. 126 - 126). IEEE

2006

Pimenta, MN and Darwazeh, I (2006) Novel encoder and correlator for optical code division multiple access networks. In: 2006 IEEE LEOS Annual Meeting Conference Proceedings, Vols 1 and 2. (pp. 422 - 423). IEEE

2005

Aguilar-Torrentera, J and Darwazeh, I (2005) Dual drain-line distributed cell design for multi-Gbit/s transversal filter implementations. In: 2005 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), VOLS 1-6, CONFERENCE PROCEEDINGS. (pp. 3958 - 3961). IEEE

Darwazeh, I and Aguilar Torrentera, J (2005) Transversal Filter Encoders and Decoders for Multi Gchip/s Optical CDMA Systems. In: (Proceedings) Enabling Optical Networks. (pp. 8 - 9). University of Aveiro: Aveiro-2005.

Katsaros, G and Darwazeh, I and Lane, P (2005) UNSPECIFIED In: (Proceedings) Linear transmission effects in doubinary and dicode optical systems. (pp. 344 - 352).

Katsaros, G and Darwazeh, I and Lane, PM (2005) Non-linear transmission effects in duobinary and dicode optical systems. IEE P-OPTOELECTRON , 152 (6) 344 - 352. 10.1049/ip-opt:20045067.

Moura, L and Darwazeh, I (2005) Introduction to Linear Circuit Analysis and Modelling: From DC to RF. Elsevier Science

Moura, L and Monteiro, P and Darwazeh, IZ (2005) Generalized noise analysis technique for four-port linear networks. IEEE Transactions on Circuits and Systems I: Regular Papers , 25 (3) 631 - 641. 10.1109/TCSI.2004.842875.

Moura, L and Monteiro, PP and Darwazeh, I (2005) Generalized noise analysis technique for four-port linear networks. IEEE T CIRCUITS-I , 52 (3) 631 - 640. 10.1109/TSCI.2004.842875.

Torrentera, JA and Darwazeh, IZ (2005) Mixed-mode s-parameter characterization of a distributed-based transversal filter. In: 2005 2nd International Conference on Electrical & Electronics Engineering (ICEEE). (pp. 385 - 388). IEEE

2004

Patel, M and Darwazeh, I (2004) Investigation of the performance of a multimode, multiband receiver for OFDM and cellular systems. In: 2003 IEEE 58TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS1-5, PROCEEDINGS. (pp. 284 - 288). IEEE

Rodrigues, MRD and Darwazeh, I and O'Reilly, JJ (2004) Volterra-series-based analytic technique to assess the power density spectrum of nonlinearly distorted OFDM signals. IEE P-COMMUN , 151 (4) 401 - 407. 10.1049/ip-com:20040399.

2003

Aguilar-Torrentera, J and Darwazeh, I (2003) Distributed Amplifier Based MMIC for Multi Gbit/s Optical CDMA Systems. In: (Proceedings) 9th European Conference on Networks & Optical Communications. (pp. 164 - 169). : Eindhoven, The Netherlands.

Aguilar-Torrentera, J and Darwazeh, I (2003) High-Speed Electrical Encoder/Decoder for Fibre Optic CDMA Systems. In: (Proceedings) International Symposium on Telecommunications. (pp. 484 - 488). : Isfahan, Iran.

Aguilar-Torrentera, J and Darwazeh, I (2003) Non-coherent Optical CDMA for Fibre Networks. In: (Proceedings) 8th European Conference on Networks & Optical Communications. (pp. 138 - 145). : Vienna, Austria.

Aguilar-Torrentera, J and Darwazeh, I (2003) Noncoherent Fibre-Optic CDMA Based on Adaptive Transversal Filters. In: (Proceedings) 3rd International Conference on Wireless and Optical Communications. : Banf, Canada.

Aguilar-Torrentera, J and Darwazeh, I (2003) Performance analysis of adaptive transversal filters for high-speed lightwave systems. In: London Communications Symposium: University College London, 8th-9th September 2003: the annual London conference on communications. (pp. 81 - 86). Communications Engineering Doctorate Centre, Department of Electronic and Electrical Engineering, University College London: London, UK.

Darwazeh, I (2003) Electronics for Optics; Integrated Circuits. In: Vilcot, A and Cabon, B and Chazelas, J, (eds.) Microwave Photonics; From Components to Applications and Systems. (97 - 104). Kluwer Academic Publishers

Darwazeh, I (2003) Electronics for Optics; Integrated Circuits, in Microwave Photonics; from Components to Applications and Systems. In: UNSPECIFIED (132 - 143). Kluwer Academic Publication

Karampatsis, D and Darwazeh, I (2003) Performance comparison of OFDM and FOFDM communication systems in typical GSM multipath environments. In: London Communications Symposium: University College London, 8th-9th September 2003: the annual London conference on communications. (pp. 360 - 372). Communications Engineering Doctorate Centre, Department of Electronic and Electrical Engineering, University College London: London, UK.

Karampatsis, D and Rodrigues, MRD and Darwazeh, I (2003) Performance comparison of OFDM and FOFDM communication systems: effects of frequency selective fading, frequency and timing offsets and I/Q QAM modulator/demodulator imbalance. In: Callaos, N and Huang, T and Jiang, JP and Wu, T, (eds.) 7TH WORLD MULTICONFERENCE ON SYSTEMICS, CYBERNETICS AND INFORMATICS, VOL XI, PROCEEDINGS. (pp. 396 - 400). INT INST INFORMATICS & SYSTEMICS

Patel, M and Darwazeh, I (2003) UNSPECIFIED In: (Proceedings) Investigation of the Performance of a Multimode, Multiband Receiver for OFDM and Cellular Systems. (pp. 284 - 288). : Orlando, USA.

Patel, M and Darwazeh, I (2003) A software radio OFDM bandpass sampling receiver and the effects of aperture jitter on performance. In: Heiter, G, (ed.) BOSTON 2003 RADIO & WIRELESS RAWCON CONFERENCE, PROCEEDINGS. (pp. 237 - 240). IEEE

Patel, M and Darwazeh, I (2003) Software Radio Reciever Performance for Cellular Applications Based on Bandpass Sampling. In: (Proceedings) International Symposium on Telecommunications. (pp. 636 - 640). : Isfahan, Iran.

Rodrigues, MRD and Darwazeh, I (2003) A Spectrally Efficient Frequency Division Multiplexing Based Communication System. In: (Proceedings) 8th International OFDM-Workshop (InOWo'03). (pp. 70 - 74). : Hamburg, Germany.

Rodrigues, MRD and Darwazeh, I and O'Reilly, JJ (2003) Error probability behaviour of nonlinearly distorted OFDM signals. ELECTRON LETT , 39 (22) 1620 - 1622. 10.1049/el:20031028.

Rodrigues, MRD and Mitchell, JE and Darwazeh, IZ (2003) On the error probability peformance of non-linearly distorted OFDM signals. In: (Proceedings) Proceedings Vehicular Technology Conference, 2003. The 57th IEEE Semi-annual.. (pp. 1278 - 1282).

Rodrigues, MRD and Mitchell, JE and Darwazeh, IZ and O'Reilly, JJ (2003) Error probability evaluation with a limited number of moments. In: (Proceedings) Proceedings, IEEE International Symposium on Inoformation Theory. (pp. Page(s):9 - ?).

2002

Aguilar-torrentera, J and Darwazeh, I (2002) A Transversal Filter for Fibre-Optic CDMA Receiving Systems. In: (Proceedings) 1st International Conference on Photonic Access Technologies, London. (pp. 51 - 54).

Aguilar-Torrentera, J and Darwazeh, I (2002) A Distributed-Amplifier Based Transversal-Filter for Gbit/s Spread-Spectrum Systems. In: Proceeding of the International Conference on Telecommunications. (pp. 1248 - 1252). Publishing House of Electronics Industry: Beijing, China.

Aguilar-Torrentera, J and Darwazeh, I (2002) A Transversal Filter for High-Speed Fibre-Optic CDMA Receivers. In: London Communications Symposium 2002 : University College London 9th-10th September 2002, the Annual London Conference on Communications. (pp. 45 - 49). Department of Electronic & Electrical Engineering, University College London: London, UK.

Darwazeh, IZ and Pinto, J (2002) Simulation of Adjacent Channel Interference Between GSM and EDGE Mobile Communication Systems.

Hathi, N and Darwazeh, I (2002) Performance of PSK/QAM Multi-carrier CDMA Schemes in the Presence of HPA Non-Linearities. In: London Communications Symposium: University College London, 9th-10th September 2002: the annual London conference on communications. (pp. 137 - 140). Communications Engineering Doctorate Centre, Department of Electronic and Electrical Engineering, University College London: London, UK.

Hathi, N and Darwazeh, I and O'Reilly, J (2002) Peak-to-average power ratio performance comparison of different spreading code allocation strategies for MC-CDMA and MC-DS-CDMA. ELECTRON LETT , 38 (20) 1219 - 1220. 10.1049/el:20020810.

Hathi, N and Rodrigues, M and Darwazeh, I and O'Reilly, J (2002) Analysis of the influence of Walsh-Hadamard code allocation strategies on the performance of multi-carrier CDMA systems in the presence of HPA non-linearities. In: 13TH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOL 1-5, PROCEEDINGS. (pp. 1305 - 1309). IEEE

Hathi, N and Rodrigues, M and Darwazeh, I and O'Reilly, J (2002) Performance assessment of MC-CDMA and MC-DS-CDMA in the presence of high power amplifier non-linearities. In: IEEE 55TH VEHICULAR TECHNOLOGY CONFERENCE, VTC SPRING 2002, VOLS 1-4, PROCEEDINGS. (pp. 1467 - 1471). IEEE

Karampatsis, D and Darwazeh, I (2002) Modelling and performance assessment of OFDM systems by simulation. In: Yuan'an, L, (ed.) Proceedings of the International Conference on Telecommunications 2002. (pp. 420 - 424). Publishing House of Electronics Industry: Beijing, China.

Karampatsis, D and Rofrigues, MRD and Darwazeh, I (2002) Implications of linear phase dispersion on OFDM and Fast-OFDM systems. In: London Communications Symposium: University College London, 9th-10th September 2002: The Annual London Conference on Communications. (pp. 117 - 120). Communications Engineering Doctorate Centre, Department of Electronic and Electrical Engineering, University College London: London, UK.

Monteiro, P and Borjak, A and da Rocha, JF and O'Reilly, JJ and Darwazeh, I (2002) Adjustable post-detection filters for optically amplified soliton systems. IEICE TRANSACTIONS ON ELECTRONICS , E85C (3) 511 - 518.

Patel, M and Darwazeh, I (2002) Front-End Filters for Software Radio Receivers Employing Bandpass Sampling. In: London Communications Symposium: University College London, 9th-10th September 2002: The Annual London Conference on Communications. (pp. 37 - 40). Communications Engineering Doctorate Centre, Department of Electronic and Electrical Engineering, University College London: London, UK.

Patel, M and Darwazeh, I and O'Reilly, JJ (2002) Bandpass sampling for software radio receivers, and the effect of oversampling on aperture jitter. In: IEEE 55TH VEHICULAR TECHNOLOGY CONFERENCE, VTC SPRING 2002, VOLS 1-4, PROCEEDINGS. (pp. 1901 - 1905). IEEE

Rodrigues, MRD and Darwazeh, I (2002) Fast OFDM: A proposal for doubling the data rate of OFDM schemes. In: (Proceedings) IEEE/IEE International Conference on Telecommunications (ICT 2002), Beijing, China. (pp. 484 - 487).

Rodrigues, MRD and Darwazeh, I and O'Reilly, JJ (2002) UNSPECIFIED In: (Proceedings) 'Volterra series assessment of non-linearly distorted OFDM signals: Power density spectrum evaluation'. In 2nd IMA International Conference on Mathematics in Communications, Lancaster, UK.

Rodrigues, MRD and Darwazeh, I and O'Reilly, JJ (2002) Assessment of the impact of optical non-linearities on the performance of OFDM signals in optical fibre supported wireless networks. In: (Proceedings) International Symposium on Information Theory and its Applications, Xian, China. (pp. 375 - 378).

Rodrigues, MRD and Darwazeh, I and O'Reilly, JJ (2002) On the distribution of the intermodulation distortion and the error probability of non-linearly distored OFDM signals. In: (Proceedings) 36th Annual Conference on Information Sciences and Systems, Princeton, New Jersey, USA. (pp. 636 - 641).

2001

Karampatsis, D and Darwazeh, I (2001) OFDM; A Possible Technology for 4th Generation Mobile Systems? In: (Proceedings) International Symposium on Telecommunications. (pp. 650 - 653). : Tehran, Iran.

Karampatsis, D and Pinto, J and Darwazeh, I (2001) Transmitter Modelling and EVM Estimation for the GSM Evolution - EDGE. In: (Proceedings) IEEE/IEE International Conference on Telecommunciations 2001 (ICT2001). (pp. 511 - 514). : Bucharest, Romania.

Medeiros, C and Darwazeh, I and Moura, L and Teixeira, A and Andre, P and Lima, M and Da Rocha, J (2001) DAWN: An approach to WDM Cost Effective Networks. In: World Multiconference on Systemics, Cybernetics and Informatics, July 22-25, 2001, Orlando, Florida, USA. Volume XII, Communication systems and Internet: Proceedings. (pp. 169 - 173). International Institute of Informatics and Systemics: US.

Medeiros, M and Moura, L and Darwazeh, I (2001) Receiver Design and Implementation Emplying Subcarrier Muliplexing Techniques for WDM Agile Networks. In: (Proceedings) Global Optical Communications-Business Briefing. (pp. 70 - 73).

Medeiros, MCR and Darwazeh, I and Moura, L and Teixeira, A and Andre, PS and Lima, M and da Rocha, J (2001) DAWN-dynamically allocated wavelength WDM network demonstrator. In: Marciniak, M, (ed.) Proceedings of 2001 3rd International Conference on Transparent Optical Networks: Cracow, Poland, June 18-21, 2001. (pp. 181 - 182). IEEE: Piscataway, US.

Monteiro, P and Borjak, A and Darwazeh, I and da Rocha, J (2001) Electrically Tunable Post-Detection Filter for Multigigabit Soliton Optical Systems. In: (Proceedings) 2001 International Symposium on Signals, Systems and Electronics. : Tokyo, Japan.

Moura, L and Medeiros, MCR and Darwazeh, I (2001) Signal and Circuit Design for the High Data Rate Dynamically Allocated WDM optical Network (DAWN). In: (Proceedings) International Symposium on Telecommunications. (pp. 713 - 716). : Tehran, Iran.

Moura, L and Monteiro, P and Darwazeh, I (2001) Exact noise analysis of distributed preamplifiers for optical receivers. In: MICROW OPT TECHN LET. (pp. 416 - 418). JOHN WILEY & SONS INC

Pinto, J and Darwazeh, I (2001) Magnitude and Phase Distortion Effects on EVM in 8PSK systems. In: (Proceedings) 3rd Conference on Telecommunications (Conftele-2001), Figuera da Foz-Portugal. (pp. 351 - 355).

Pinto, J and Darwazeh, I (2001) Simulation of Adjacent Channel Interference in EDGE Mobile Communication Systems. In: (Proceedings) IEEE/IEE International Conference on Telecommuncations 2001 (ICT2001). (pp. 363 - 367). : Bucharest, Romania.

Pinto, JL and Darwazeh, I (2001) Error vector magnitude relation to magnitude and phase distortion in 8-PSK systems. In: ELECTRON LETT. (pp. 437 - 438). IEE-INST ELEC ENG

Sotiropoulos, S and Hawkins, I and Darwazeh, I (2001) Transmission and multiplexing of uncompressed video and ancillary signals over a new multimedia frame. IEEE T CONSUM ELECTR , 47 (4) 753 - 759.

2000

Drew, J and Wilson, B and Darwazeh, I (2000) New active decoupling technique extends lower bandwidth limit for HBT-based MMIC amplifiers. IEEE T CIRCUITS-I , 47 (1) 72 - 75.

Moura, L and Mederios, MCR and Banasakis, G and Darwazeh, I (2000) Receiver Design for Wavelength Division Multiplexed Optical Networks Employing Subcarrier Multiplexing Techniques. In: Mitchell, JE, (ed.) London Communications Symposium: University College London: the 5th Annual London Conference on Communications, London 14th-15th September 2000. (pp. ? - ?). Communications Engineering Doctorate Centre, Department of Electronic and Electrical Engineering, University College London: London, UK.

1999

Darwazeh, IZ and Iqbal, A (1999) ANALYTICAL EXPRESSION FOR THE EQUIVALENT INPUT NOISE CURRENT SPECTRAL DENSITY OF HBT DISTRIBUTED AMPLIFIER BASED OPTICAL RECEIVERS.

Darwazeh, IZ and Iqbal, A (1999) TRANSIMPEDANCE GAIN MODELLING OF OPTICAL RECEIVERS EMPLOYING A PIN PHOTODIODE AND HBT DISTRIBUTED AMPLIFIER COMBINATION.

1998

Darwazeh, I (1998) Electronics for Optics; Introduction to MMIC's in Interactions between Microwaves and Optics. In: Schanen, EI and Cabon, B and Vilcot, A, (eds.) UNSPECIFIED (97 - 104). ENSERG: France.

Iqbal, A and Darwazeh, IZ (1998) A novel bias stabilised HBT based distributed amplifier for 30 Gbit/s optical receiver applications. In: Faulkner, DW and Harmer, AL, (eds.) TECHNOLOGY AND INFRASTRUCTURE - NOC '98. (pp. 152 - 159). I O S PRESS

Monteiro, P and Borjak, A and da Rocha, F and O'Reilly, J and Darwazeh, I (1998) 10-Gb/s pulse-shaping distributed-based transversal filter front-end for optical soliton receivers. IEEE MICROW GUIDED W , 8 (1) 4 - 6.

Sotiropoulos, S and Hawkins, I and Darwazeh, I (1998) A novel digital architecture for high quality uncompressed digital video and audio transmission. In: Faulkner, DW and Harmer, AL, (eds.) LONG-HAUL, ATM AND MULTI-MEDIA NETWORKS - NOC '98. (pp. 49 - 54). I O S PRESS

1997

Borjak, A and Monteiro, PP and OReilly, JJ and Darwazeh, I (1997) High-speed generalized distributed-amplifier-based transversal-filter topology for optical communication systems. IEEE T MICROW THEORY , 45 (8) 1453 - 1457.

Darwazeh, IZ (1997) MMICS FOR BROADBAND OPTOELECTRONIC RECEIVER APPLICATIONS.

Darwazeh, IZ and Borjak, A and Moura, L and O'Reilly, JJ (1997) Input Noise Current Spectral Density Estimation for a Distributed Based Optical Receiver.

Drew, JD and Wilson, B and Darwazeh, IZ (1997) New active decoupling technique provides extension to lower bandwidth limit for HBT-based MMICs. In: EDMO - 1997 WORKSHOP ON HIGH PERFORMANCE ELECTRON DEVICES FOR MICROWAVE AND OPTOELECTRONIC APPLICATIONS. (pp. 181 - 186). IEEE

Iqbal, A and Darwazeh, IZ (1997) A novel MMIC area efficient method for bias stabilising HBT based distributed amplifiers whilst maintaining low frequency gain. In: 1997 HIGH FREQUENCY POSTGRADUATE STUDENT COLLOQUIUM. (pp. 149 - 154). IEEE

1996

Borjak, A and Monteiro, P and Darwazeh, I and OReilly, J (1996) Transversal filter based distributed amplifiers for high bit rate systems. In: Faulkner, DW and Harmer, AL, (eds.) BROADBAND SUPERHIGHWAY - NOC '96-I. (pp. 328 - 329). I O S PRESS

Borjak, A and Monteiro, P and Darwazeh, IZ and OReilly, JJ (1996) Multigigabit distributed amplifiers for signal shaping applications. ELECTRON LETT , 32 (4) 355 - 356.

Borjak, A and OReilly, JJ and Monteiro, P and Darwazeh, IZ (1996) The distributed amplifier as a signal processor for very high speed communication systems. In: IEEE GLOBECOM 1996 - CONFERENCE RECORD, VOLS 1-3. (pp. 793 - 797). I E E E

Darwazeh, I and Moreira, P and Borjak, A and OReilly, J (1996) Near dc to 16 GHz distributed optical preamplifier with improved gain performance. In: Faulkner, DW and Harmer, AL, (eds.) TECHNOLOGY, INFRASTRUCTURE, WDM NETWORKS - NOC '96-III. (pp. 316 - 317). I O S PRESS

Darwazeh, IZ and Borjak, A and Moura, L and O'Reilly, JJ (1996) Noise Modelling of the Distributed Amplifier Based Optical Receiver.

Darwazeh, IZ and Iqbal, A (1996) Modelling Of The Heterojunction Bipolar Transistor Based Distributed Amplifier.

Iqbal, A and Darwazeh, IZ (1996) Analytical modelling of the Heterojunction Bipolar Transistor based distributed amplifier. In: 1996 2ND HIGH FREQUENCY POSTGRADUATE STUDENT COLLOQUIUM. (pp. 11 - 16). I E E E

1995

Borjak, A and Monteiro, P and Darwazeh, IZ and OReilly, JJ (1995) Distributed amplifiers with embedded signal shaping for multigigabit transmission systems. In: 1995 WORKSHOP ON HIGH PERFORMANCE ELECTRON DEVICES FOR MICROWAVE AND OPTOELECTRONIC APPLICATIONS (EDMO). (pp. 130 - 135). I E E E

Darwazeh, I (1995) Analogue Optical Fibre Communications. IEE

DARWAZEH, I and MOREIRA, P and BORJAK, A and OREILLY, J (1995) A distributed optical receiver preamplifier with unequal gate/drain impedances. In: Bahl, I, (ed.) IEEE 1995 MICROWAVE AND MILLIMETER-WAVE MONOLITHIC CIRCUITS SYMPOSIUM - DIGEST OF PAPERS. (pp. 199 - 202). I E E E

Moreira, P and Darwazeh, I and O'Reilly, J (1995) Optical Receivers for Sub-Carrier Multiplexed Applications in Analogue Optical Fibre Commuications. In: UNSPECIFIED (255 - 285). IEE

1993

Darwazeh, IZ and Ghassemlooy, Z and Wilson, B (1993) OPTICAL FIBRE TRANSMISSION OF VIDEO AND AUDIO SIGNALS USING SQUARE WAVE FREQUENCY M0DULATlON. IEEE Transactions on Consumer Electronics

Darwazeh, IZ and Moreira, P and Lane, PM and O'Reilly, JJ (1993) TIME DOMAIN OPTIMISATION OF HIGH BIT RATE OPTICAL RECEIVERS.

Darwazeh, IZ and Moreira, P and O'Reilly, JJ (1993) NOVEL OPTICAL RECEIVER DESIGN USING DISTRIBUTED AMPLIFIER PULSE SHAPING NETWORK.

LANE, PM and DARWAZEH, IZ and MOREIRA, PMRS and OREILLY, JJ (1993) GAAS MMIC TECHNOLOGY APPLIED TO SIGNAL SHAPING FOR HIGH BIT-RATE OPTICAL COMMUNICATIONS. In: Cryan, RA and Fernando, PN and Senior, JM and Way, WI, (eds.) TRANSPORT TECHNOLOGIES FOR BROADBAND OPTICAL ACCESS NETWORKS. (pp. 57 - 67). SPIE - INT SOC OPTICAL ENGINEERING

MOREIRA, PMRS and DARWAZEH, IZ and OREILLY, JJ (1993) DESIGN AND OPTIMIZATION OF A FULLY INTEGRATED GAAS TUNED RECEIVER PREAMPLIFIER MMIC FOR OPTICAL SCM APPLICATIONS. IEE PROC-J , 140 (6) 411 - 415.

MOREIRA, PMRS and DARWAZEH, IZ and OREILLY, JJ (1993) DISTRIBUTED-AMPLIFIER SIGNAL SHAPING STRATEGY FOR MULTIGIGABIT DIGITAL OPTICAL-TRANSMISSION. ELECTRON LETT , 29 (8) 655 - 656.

MOREIRA, PMRS and DARWAZEH, IZ and OREILLY, JJ (1993) NOISE OPTIMIZATION OF A TUNED INTEGRATED GAAS RECEIVER. In: Cryan, RA and Fernando, PN and Senior, JM and Way, WI, (eds.) TRANSPORT TECHNOLOGIES FOR BROADBAND OPTICAL ACCESS NETWORKS. (pp. 20 - 25). SPIE - INT SOC OPTICAL ENGINEERING

1992

DARWAZEH, I and LANE, PM and MARNANE, WP and MOREIRA, P and WATKINS, LR and CAPSTICK, MH and OREILLY, JJ (1992) GAAS MMIC OPTICAL RECEIVER WITH EMBEDDED SIGNAL-PROCESSING. IEE PROC-G , 139 (2) 241 - 243.

Darwazeh, IZ and Moreira, P and Lane, PM and O'Reilly, JJ (1992) A GaAs Signal Shaping Network with a Controlled Response from DC to 25 GHz.

1991

Darwazeh, IZ and Moreira, P and Lane, PM and O'Reilly, JJ (1991) Time domain optimisation of GaAs signal shaping filters for very high bit rate optical communications.

1990

DARWAZEH, I and WILSON, B (1990) HYBRID-PI COMMON BASE ANALYSIS. IEEE T CIRCUITS SYST , 37 (5) 655 - 656.

1987

WILSON, B and DARWAZEH, I (1987) TRANSIMPEDANCE OPTICAL PREAMPLIFIER WITH A VERY LOW INPUT RESISTANCE. ELECTRON LETT , 23 (4) 138 - 139.

NULL

Darwazeh, IZ Peak to Average Power Ratio Reduction in Spectrally Efficient FDM Systems. In: (Proceedings) 2011 18th International Conference on Telecommunications.

Darwazeh, IZ and Chen, Y End-to-End Delay Performance Analysis in IEEE 802.16j Mobile Multi-hop Relay (MMR) Networks. In: (Proceedings) 2011 18th International Conference on Telecommunications.

Darwazeh, IZ and Drew, J and Wilson, B Generalised model for prediction and synthesis of negative capacitance at microwave frequencies using commongate MESFET. In: (Proceedings) 26th EuMC.

Darwazeh, IZ and Drew, J and Wilson, B GENERATION OF NEGATIVE CAPACITANCE IN A COMMON GATE MESFET STAGE AND APPLICATION TO OPTICAL RECEIVER DESIGN AT MICROWAVE FREQUENCIES.

Darwazeh, IZ and Iqbal, A A 23 GHz BASEBAND HBT DISTRIBUTED AMPLIFIER FOR OPTICAL COMMUNICATION SYSTEMS. In: (Proceedings) 28th European Microwave Conference.

Darwazeh, IZ and Isam, S and Kanaras, I A Truncated SVD Approach for Fixed Complexity Spectrally Efficient FDM Receivers. In: (Proceedings) IEEE Wireless Communications and Networking Conference 2011.

Darwazeh, IZ and Monteiro, P and Borjak, A and da Rocha, F and O'Reilly, JJ Pulse shaping distributed based transversal filter for optical soliton system. In: (Proceedings) 26th EuMC.

Darwazeh, IZ and Perrett, M Flexible Hardware Architecture of SEFDM Transmitters with Real-Time Non-Orthogonal Adjustment. In: (Proceedings) 2011 18th International Conference on Telecommunications.

Darwazeh, IZ and Pessoa, L and Salgado, H Simplified Backpropagation Equalization in WDM Coherent Polarization Multiplexed Systems.

Darwazeh, IZ and Pimenta, M Electronic processing for generation and detection of multi Gbit/s CDMA over fibre. In: (Proceedings) Optoelectronics and Communications Conference.

Darwazeh, IZ and Wilson, B LOW INPUT RESISTANCE TRANSIMPEDANCE OPTICAL PREAMPLIFIER FOR FIBRE OPTIC LOCAL AREA NETWORKS. IEEE Circuits and Systems Magazine

Papadopoulos, S and Darwazeh, IZ and Papakonstantinou, I and Troska, J and Vasey, F An electroabsorption modulator-based network architecture for particle physics applications. Journal of Instrumentation , 6 (12) 1 - 8.

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